math4

2. Write a subtraction fact for each of the following: c. loooooaooooo b ?8ltt 2L 2t 2L ftfll \". lfoololaloloooooo 3. Add the following: a. 27 .o1. 388+-= L1) c, ooo -L+5-=15 9 1,L 2T 2L 1a 11 11 321 q11 o. 7T IL Lt n. 2t 27 2L 777 2,7 20 20 +. f fNina needs kg of sugar for bakine a cake and kg of sugar for making pudding. How much sugar is needed for both the items together? 5. subtract the following: 18 11 9 \". L7t-3L1, = b. 23 23 2t 21 .5L 138 L9 11 13 13 t. 23 23 2I 2L 52 158 99 82 27 27 h. 15 15 6. f fArjun ate of a chocolate bar on Monday and of the same chocolate on Tuesday. On which day did he eat more and by how much?

7. 1 !Promita fravels of the distance to her office by bus and of the distance by train. How much distance does she cover by these two modes of transportation? 8. Dinesh reads f, of a bookinn\"tm, orntng . _4. of-the book in the evening. and How much does he read altogether? Ananya has a habit of eating a lot ofjunk food. She bought a large pizza on Monday. She ate one-tenth of it and stored the rest in the refrigerator On Tuesday, she had three_tenths ofthe pizza, and ate one-tenth of the pizza on Wednesday. On which day did she eat more pizza? How much pizza is left with her? Ananya has put on a lot of weight because of her habit of eating junk food. Present your views on the disadvantages of eating junk food. 1. Evaluate. J n 10 ^s9918L 3 315--' 32 48 2. The sum of two fractions is 1. lf one fraction is Z, what is the other 5 fraction? 3. The sum of two like fractions is and their difference is Find the fractions. ,oa. ,o4 +S+o@@ Our survival largely depends on water. In our daily life, we consume so mucn of water in different forms, excluding drinking water; milk, tea, etc. L. Do you know that i4 th of an egg is water? What is the weight of water in an egg weighing 40 g? $-

2. -f-, th ot a boiled potato is water. How much water will you consume if you eat two boiled potatoes, each weighing 50 g? 3. We all love to eat apples'. -1, th of an apple is water. How much water is there in an apple weighing 72 g? 4. Mango is a fruit which is liked by everybody, including your ].grandparents. The fraction of sugar content in a mango is IU lf your grandparents eat 2 mangoes, each weighing 120 g, how much sugar is consumed by them? 5. Every day we come across many people-short, tall, fat, thin, very thin and very fat. :1Jh of a person's body weight is calcium. How fin:;i* much calcium is contained in a man's body weighing 75 kg? Objective: To draw fractions on a checkered sheet Material required: A checkered sheet of paper 't L 2 L 7 L 3 3 3 1 L L1 4 L L 44 LL 66 6 6 1 1, LL1L tt tr 66 L2 L2 t2 T2 L2 72 L2 12 LL11 L2 t2 72 L2

Method: Colour each fraction with a different colour. We observe tnar 1,L 22 111 ;T-t-=r 1111 4444 1111 11 oobb bb 1L11 L2 12 +1:,+2+1+2 +1.+2 !L*2-LL*211+-211+21=721- 12 L2 From the shaded portions, we also observe tha2tA>3I,a4,a,6aL2 NoW draw the same on a checkered sheet and colour. Proper and lmproper Fractions ffirnr; r-l-aA fraction in which the numerator is less than the denominator is called a proper fraction. rrrr l\\l 3 2L 8 54 t(\\+8,'5''-4, l- IThe above fraction aru proper fractions. \"tt A fraction whose numerator is greater than or equalto the denominator is called an ffiffiryffiffiffi,improper fraction. ?q f (lmnrooer fraction) 8 (tmproper fraction) q , ::txamptes: --, 7 10 and are all improper fractions.

A combination of a whole number and a fraction is called a mixed fraction. lmproper fractions can oe expressed as mixed fractions' Fraction (=1) ! ! 4 3_:- a 4 lm ProPer i4 fraction Whole numDer $Examples: 2f,, ^AS| ^re called mixed fractions' Aakashpainted4moutof6m|engthofapo|e,whereasSantoshpainted e; ;uiot rz t length of a pole Who painted more? Converting an lmproper Fraction into a Mixed Fraction Step 1: Divide the numerator by the denominator' step 2: Write the quotient of the division as the whole number' the remainder as the numerator and the divisor as the denominator' -Example l.: Convert into a mlxled fraction' Divisor or SteP 1: Divide 13 bY 2' denomI ina\"tolr=6;;<-Qwuhootlieenntumorber lStep 2: Quotient = 6, Remainder = and Divisor = 2 or -1+-Remnauinmdeerar ror '2Thus. Lj as a mixed fraction is 6 = fExample 2: convert into a mixed fraction' 3 tfTo convert 17 into a mixed fraction, divide 17 bY 5' cl17 Quotient = 3, Remainder = 2 and Divisor = 5 2 { J-'.Thus, as a mixed fraction ls ^2

Converting a Mixed Fraction into an lmproper Fraction Step 1: Multiply the whole number and the denominator. Step 2: Add the numerator to the product. Step 3: Write the number obtaiied with the same denominator. Example 1: Convert 3+ into an improper fraction. 5 3x3 = 9 (Step 1: Multiply the whole number with the denominatorl 9+ L = 10 (step 2: Add the numerator to the product of step 1l lmproper fraction is 10 (Step 3: The number obtained, that is, 10 is the numerator and denominator remains the samel Thus, 3A as an improper fraction is 19. Example 2: Convert 7? into an improper fraction. -299 17 x9l+2 ('5+z b5 9 9 tThus, 7? as an improper fraction is bJ 1. Circle the improper fractions and cross out the proper fractions. 33393 7 7 L1 5 313 94L 55 25 13 243 75 52 35 35 48 49 77 11 22 19 21 27 51 3425 947L10 1q 1q 2. Convert the following into mixed fractions. e. 8-1: ^L7 1a 32 A 9 5 2L t25 17 k 1-\"q 5 44 3. Convert the following into improper fractions. 1 b. s1 . -,7 d. 111: 332

Write the mixed fraction to represent the pictures and then convert it into an imoroDer fraction. tta6 Mixed fraction lmproper fraction D. aalDtDlD {.. c. lygl Strreya spends one-third of an hour every evening from Monday to Saturday with ISJ 616 people in an old age home. on Sundays, she spends two-thirds of an hour in the old age home. How much time does she spend at the old age home in a week? What value is depicted by this action of Shreya? Plan a visit to an old age home. Present a short report on your experience and the impact it had on you and the people in the old age home. Torget Olympiod ithThe difference between two numbers is 1.6. lf the smalter number is of the larger number, then find the larger number. lf the weight of a dog is L2 kg more than 1th of its weight, find the weight of the oog. Fractionson NumberLine,..rs':.'tr - A proper fraction is represented between 0 and 1 on a number line. _ ;Example 1: .6 on a number line. Represent Divide the whole betweln 0 and 1 into 8 (denominator) equally spaced small divisions. starting from o, move 6 (numerator) small divisions ahead Put a cross on the mark you reacn. The crossed position represents the fractlon;.

061 8 An improper fraction is represented by a position beyond 1on the number line. Example 2: Represent j1a1 on a number line. A '44Convert the improper fraction into a mixed fraction, that is. 11 = 2 3 . Starting from 0, move 2 (whole part) big divisions ahead on the number line. is,:.Take the fraction part, that Divide the whole between 2 and 3 into 4 equally spaced small divisions. Starting from 2, move 3 small divisions ahead. put a cross at the markins you reach. The crossed position represents the fracl;on 2 3 -1!. 44ot. ?. 1. Represent the following fractions on the number lin e. ^7 6 \" 3 b.,o . T 2. Write the fraction that is represented on the number line. b. 01 c. d.

I aD[e-guUst:tlrte!P/ Objective: To compare, add and subtract fractions Materials required: Paper strips (same length and width) and coloured pencils Method: sho*n. \"s 1. Compare:: and: II ]77 ]on the paper strips, represent and 3q 77 We can see that, -=<-: . [As both are like fractions and 3 < 5] a2. ndd: a5+5 aRepresent on a paper strip. 3 Represent 1on another striP. Add: 3 A 5 + 4 T -.347 5)) 3. Subtract: 7q -:- t- -Represent 7 on a PaPer strlp. 7 9 To subtract ]-, cross out 5 squares out of 7 coloured squares. _ln.u7s,'59--- 9 = 9 Repeat the above procedures for other fractions.

Decima ls Ram's mother bought a cake for his birthdav and invited his friends to share the cake. The cake was in the shape of a square. She cut the cake into 100 equal pieces as shown in the figure. Ram and his friends ate 23 pieces. Using fractions, we can saV that they ate Z3O of the cake. In decimals, we say that they ate 0.23 of the cake. Just as a whole number is expressed as a sum of ones, tens, I AP1361;9n 100 hundreds, etc., in decimal system, the decimal part can be )Decimal 0.23 .expressed as a sum of 1L0th (tent;h), :jo1 th (hundredths), --IUUU^ th (thousandths), etc. For example, in the number 37.23, 37 23 = 3xLO+7x1+ 2, 3 L0 I 100 Whole Decimal Decimal part number part point In decimal numbers, the digits to the left of the decimal point form the whole number part and digits to the right form the decimal part. Note: 1758 = 01758 = 001758. TheV are all same. Similarly, 0.35 = 0.350 = 0.3500 100 ]L.But 0.35 = .3* and o.Oss = 1. 000 ,o, o.ss i, not equat to 0.035. Let us see how can we place decimal numbers like 376.9g1, 100.305,20.022 and 700.070 in the place value chart. Decimal Tenths Hundredths Thousandths Point Hundreds Tens Ones /1\\ /1\\ /1\\ Va lue \\roo/ \\ looo/ 3 76 Uo/ 376.981 00 8I 100.305 1 20 9 020.o22 00 05 700.o70 0 3 7 0 22 0 10

Use >, < or = to compare the fractions. 53 '., 7 c.- 9 11 15 88 11 1L ,' i3l4-a)]i56 -. 9 r---) 11 'l't 25 77 13 [_J 13 L4 L4 L4 Evaluate. '72 99 11a. b. 19 19 1.1 c. 17 1,L 8_5 9_6 77 o. = e. t5 IJ = f. E'T Tick (\"/) the like fractions. 8 92t \" 2L l1', 13 3'3 .LJ ls'15'15 \",' 5 r. T--l L2'12 \\---) Arrange in ascending order. \" 7152 ? q 11 9' 9'9'9 LJ .L5 J,5 I'J f, fconvert ana ?? into mixed fractions. af zlconvert and into improper fractions. a f aRalu used kg of apples, kg of grapes and kg of mangoes to Find the total weight of the fruit salad. fiMicky and Ricky earn the same salary. Micky spends of his salary in a month and J11Ricky spends tt of his salarY in a mlonth. who ,uve' t-o'\" in one month? f ?a,Asha, Usha and f,lisha drank and fraction of juice, respectively from a large juice pack. How much juice did they drink altogether?

1. Each ofthe given circles is divided into ten equal parts. Use two colours to show the addition of two different fractions that equals 1. Then fill in tne Doxes. One has been done fbr you. 1-L0 1--01 -' Etr tr n n n-+ E_ =1 n- 2. At a vegetable shop, the prices of different vegetables are given as fractions of a 1.00-rupee note. Ivegetables Price per kg o_1o7tt':\"r ,... t of { 1oo s\"\"n, fof{roo carrots 1of { roo Beetroots fiof { roo What is the total price of 2 kg of carrots and 3 kg of beans? b. What is the difference in the prices between 3 kg of potatoes and 2 kg of beetroots? jc. Anirban bought 2 kg of potatoes, 1 kg of beans, kg of carrots and 1. kg of beetroots. Find the amount he needed to pay to ihe shopkeeper. lf he grves { 500 to the shopkeeper, then how much balance will he get back?

ln orevious classes, we have learnt some basic geometrical shapes as given below' Types of lines: There are three different types of lines' c. slanting line I a. Horizontal line b. Vertical line t Vertex Face: The surface of a solid shape is called its face' Edge Edge: An edge is a line segment where two faces Face meer, Vertex: A vertex is a point where the edges meet' i 1. ldentify the point, line, line segment and ray. d. B b. .B 2. ldentifv the plane figures and write their names' \"O

3. Write the number of faces, edges and vertices for the following figures. '(g \"fla. D. Faces Faces Faces Faces Faces Edges Edges Edges Edges Edges _Vertices _Vertices _Vertices Vertices_ Vertices Moths Around Us Aakriti is very keen to learn about different shapes in our surroundings. To show her interesting and practical examples of shapes, her parents decided to take her to Asra to visit historical monuments. On reaching the Taj Mahal in Agra, Aakriti was verv excited as she could instantly connect the shapes she has read in the books with the different parts of the monument. Aakriti quickly pointed out to her younger brothet Nikhil, about the different shapes they could see there. She informed Nikhil that the pillar is an example of cylinder, the graves of Mughal Emperors were cuboidal in shape, the roof was spherical in shape and so on. Both of them were pleased to see real-life examples of various shapes. Measuring and Drawing a Line Segment Measu ring we use a ruler to measure and draw a line segment. Each big division on a rurer is divided into 10 smaller divisions. 1 big division represents j. cm. j. small division represents 1 millimetre (mm). So, 10 mm = 1 cm. To measure a line segment, keep the 0 mark of the ruler at one end of the line segment and read the marking on the ruler where the line segment ends.

Let us see how much the line segment CD measures. We can see that the marking on the ruler at D is 5 cm 2 mm. Thus, the length of cD is 5cm2mm. Drawing To draw a line segment of length 7 cm, place the ruler on your notebook and mark a point' say X, at the 0 mark and another point, say V at the 7 mark of the scale. Join the points along the edge of the ruler. XY is the required line segment. 1.. Measure the length of each line segment. a.A b. I c *_____r_r., I I ID o'--/^ G 2. Draw the line segments of the following measures using a ruler' a.5cm b.6cm4mm c. 3cm7mm d. 9cm e.8cm5mm j.4cm6mm f. locmgmm g.5cm8mm h.7cm3mm i. 2cm9mm Curve A line that is not straight is a curve. There are two types of curves' Closed curve lf a curve begins and ends at the same point, it is known as a closed curve'

w<Y? <')Examples: \".- lf a closed curve does not crqss itself, it is a simple closed curve. The first four figures are examples of simple closed curves. Open curve lf a curve does not end at the starting point, it is known as an open curve. Examples: (-> ---1 Pofygons .Mhlffi&tntt3&tt t, -, A closed plane shape made up of three or more line segments is called a polygon. Types of Polygons Number 3 4 56 7 8 9 10 of sides Figure of polygon Name of the polygon Id. \\)

2. Draw. b. An open curve : a. A simple closed curve: 3. Draw four polygons with different number of sides. 4. Form a polygon with a. 2 matchsticks b. 3 matchsticks c. 4 matchsticks d. 5 matchsticks In which case was it not possible for you to form a polygon? Record your findings in your notebook. 5. What is a quadrilateral? Give two examples of a quadrilateral Circle (A circle is a simple closed .uru\". /-^\\.o ) Place a bangle on paper and trace around it to get a circle. d, theA circle is a curved shape in which all the points on A Radius curve are at the same distance from a fixed point called the centre. O is the centre of the circle. The distance between the centre and any point on the circle is called the radius. OA and oB are the radii of the circle. Note that radii is the plural of rad ius. lf any two points on a circle are joined with a line, it is called a chord EF is a chord' A chord of a circle which passes through the centre is called its diameter. CD is the diameter of the circle. A diameter is the longest chord of a circle. A circle can have many chords, radii and diameters. lf you walk around a circular park starting from a point and come back to the same point, the distance vou have walked is called the circumference of the park. In other words, circumference is the length of the boundary of a circle. F? fI 106l -\\gr:s

Look at the figure below. As learnt, AB is the diameter and OA and OB are the radii of the circle. CU AB = OA + OB = radius + radius = 2 x radius Thus, diameter= 2 x radius or, radius = diameter 2 So, radius of a circle is half of the diameter, and diameter of a circle is twice the radius. Drawing a Circle A circle can be drawn with the help of compasses. Step 1: Keep the metal pointed end of the compasses firmly on paper. Step 2: Stretch the other arm having pencil and rotate the pencil arm. You can draw circles with defined measures. Suppose you have to draw a circle with radius 5 cm. Draw a llne segment OB of length 5 cm with the help of a ruler on a paper. Stretch the arms ofthe compasses as wide as the length ofthe line segment and draw the circle. Here, O is the centre and OB is the radius. The radius of this circle is 5 cm. Diameter= 2 x radius = 2 x 5 cm = 10 cm. Find the diameter for the given rad ii. a. 8cm b. 15 cm c. t7 cm d. 30 cm 100 cm d. 50cm 2OO cm 2. Find the radius for the given diameters. a.5cm b. 22cm c. 48 cm A round clock has a radius 15 cm. Find its diameter. 4. The diameter of a wheel is 70 cm. Find its radius.

crrcles grven count the number of triangles and quadrilaterals in the given figure. N umber of triangles is Number of quadrjlaterals is APut a tick mark (r') for the polygons.r--l oo IlLt-_-J ll L__l 0 I i, _l i.-r- My Proiect 1. Use any cylindrical object. Trace its boundary on a piece of paper. Take a thread and wrap it around the traced boundary. Measure the length of thread traced. The length of the thread is the circumference of the object. 2. Cut out a circle from a sheet of paper. Fold it into half vertically, crease the fold and open up. Can you see a line segment along the crease? lt is called the diameter. NoW fold it into half horizontally and unfold to get another creased Iine. lt is also a diameter. The point of intersection of the two diameters is called the centre.

Three-dimensional Shapes :rsrn{l., Three-dimensional shapes or solid shapes are the objects Vertex having three measurements, that is, length, breadth and height. A tace is a surface of a solid shaoe. Edge Face An edge is a line segment where two faces meet. A vertex is a point where the edges meet. Cube ffiI i IA cube has 6 faces, 8 vertices and 12 edees. lj\"'r- I aVExa m ples: -. Die Cuboid A cuboid has 6 faces,8 vertices and 12 edges. Examples: Pencil box Cupboard Book Cone -* lA cone has 2 faces (1 flat and curved), L edge and l venex. Examples: tce cream cone Birthday cap A raffic pylon Cylinder A cylinder has 3 faces (2 flat and l curved), 2 edges and no vertex. Examples: I Fire extinguisher Water tank

Sphere A sphere has 1 curved surface, no edge and no vertex, oExamples: Ball Globe Net of a Three-dimensional Shape A net of a three_dimensional shape can be obtained by unfolding the Net of a Cube snape. Cube Net of a cube Net of a cuboid Cuboid Vertex Net of a cuboid Net of a cone Net of a Cone Net of a cylinder Base Net of a Cylinder Top Base tu\"no\"' .s[_A sphere does not have a n\",.

Different Views of Three-dimensional Shapes A three-dimensional shape may look different when viewed from different positions. Let us observe the given three-dimensional shape from different positions. ,7 Front view Side view Front view Side view Top view i (appearance of the (appearance of the (appearance of the Three-dimensional view object from the front) I object from the side) object from the top) L. Write the shape of the following objects. a. Geometry box b. A smiley ball c. lce cream cone d. A road roller e. A matchbox f. An ice cube 2. Name a solid shape with only one vertex D, no flat surface .l six identical faces c exactly two flat faces 3. Draw nets of the following: a. Cuboid b. Cylinder c. Cone d. Cube 4. Write the number of faces, edges and vertices of the following figures. a. Cuboid b. Cube c. Cylinder d. Cone 5. Draw the top view front view and side view ofthe following solid shapes. ,f,,a. Jffil--I,\"t .-a--71 Ft nJtilr. 17tl)a47l #u_

Tangram Tangram is an intellectual game consisting of seven pieces-two large triang|es,onemedium-sizedtr|ang|e,twosma||triang|es,onesquareand one parallelogram. You can cut out these pteces and put them together in different ways to make some interesting shaPes' Now try making these shapes using tangram pieces' lr:y l_*,.rslWL z\\\\^r< House Fan {ot%,wzA\\\\> l^^- Arrow BunnY Duck Gun Ary[A-tMHS tIibAD/ Objective: To draw solid shapes on isometric dotted paper Materialsrequired:Asheetofisometricdottedpaper'rulerandpencil equal paper consisting of dots marked at a solid Method: An isometric dotted paper is a special shapes Connect the dots to draw which helpto draw three-dimensional distances shape. A cube drawn on an isometric paper will look like this :V.fi.Q1. 'step2 . 'step3 . - . : Now, draw a cuboid, cylinder and a cone on an isometric sheet 1 MY Proiect Use tangram pieces to irake a Poster on 'Save Wildlife' the topic Present Your poster the class and speak a few lines on In 'Endangered Wildlifel

Draw line segments of the following measures using a ruler. a. 4cm5mm b..5cm1mm c. 7cm8mm 6cm6mm 9cm8mm e. 11 cm3mm f. 13 cm g. 14cm3mm 2. Classify as an open curve or a closed curve. D. 5. Draw three different polygons with each one having 4 sides. A Draw circles with the given radii. a. 3cm b.5cm5mm c.7cm d.8cm8mm e. 10 cm 5. Draw nets ofthe following shapes. a. Cube b. Cuboid c. Cone d. Cylinder 6. Draw the following solid shapes. Mark and write the number of corners, eoges and faces of a. Cuboid b. Cone c. Cylinder d. Cube 7. Draw top view front view and side view of the following solid shapes. b /a :Z),.= d. 411.1) 8. Find the diameter of a circle, if the radius is a. 4cm b. 6cm c. 5cm d. 8cm e. Lscm f. 27 cm 9. The radius of the circular bottom of a flower pot is 19 cm. Find its diameter. 10. The diameter of a giant wheel is 30 m. What will be its radius?

a Patterns can be seen everywhere around us. A pattern is a definite sequence of shapes, numbers or letters repeated over and over again. The repetition of shapes can be used as a model to make designs. Growing or Increasing Pattern In this type of pattern, the numbers or shapes grow or increase in value and size' Example: 100, 2OO, 3OO,4OO, 5OO, 600,7OO is a number pattern which increases by 100 at each step. Decreasing Pattern In this type of pattern, the numbers or shapes decrease in value and size' Example:999,998,gg7,996,gg5,gg4,993isanumberpatternwhichdecreasesby1at eacn steD. A shape is symmetrical when one half of the shape is exactly like the other half, and the line dividing these images is called the line of symmetry. Tiling is the process of creating a pattern using the repetition of geometric shapes with no overlaps and no gaps. L. Draw the line of symmet ry for the following figures, if a ny. m..f

Colour the tiles to form a beautiful pattern. 3. Continue the pattern. n\". ((() a( \" +x+x+ i \\V\\\\,/ d. DEEDEDEEDE i C. AABCAABCA Patterns in Numbers Addition Patterns in addition help us to find the solution without actual calculation. Observe the following pattern. 0+1+2=3 5+6+7=18 6+7 +8=2L 2+3+4=9 7 +8+9=24 3+4+5=t2 4+5+6=15 8+9+LO=27 9+ 10+ 11 =30 The sum differs by 3 in each statement or we can say that the pattern follows the multiplication table of 3. Observe the pattern. !+3=4 3+5=8 5+7=t2 7+9=t6 9+1L=20 The sum differs by 4 or we can say that the pattern follows the murtiplrcation table of 4.

Subtraction Subtraction also follows patterns. Observe the pattern given below. 70-50=20 65'- 45 = 20 69-49=2O 64-44=20 68-48=20 63-43=20 67-47=20 62-42=2O 66-46=20 6t-4L=20 You can see that when 1 is taken away from both the subtrahend and the minuend, the difference remains unchanged. You can have as many patterns as you like with other numbers. Note that the same number should be subtracted from the subtrahend and the minuend every time. Multiplication Table of 3 6x3=18 The patterns that can be observed in 1x3=3 7x3=2L the table are as follows: 2x3=6 8x3--24 3x3=9 9x3=27 1. Tens places of the products have 10x3=30 4x3=t2 O, O,0, L, t, t,2, 2,2,3, and so 5x3=1.5 on. Table of 5 2. lf the digits of each product are added, the result is 3,6 or 9. 1x5=5 6x5=30 2x5=10 7x5=35 3x5=15 8x5=40 4x5=20 9x5=45 5x5=25 1.0x5=50 The patterns that can be observed in the table are as follows: L. The ones place of the products have either 5 or 0. 2. Thetens place has digits0, 1-, I,2, 2,3,3, 4, 4, 5, and so on.

Table of 9 6x9=54 7x9=63 1x9=9 8x9=72 9x9=31 2 x 9 = 18 10x9=99 3x9=27 4x9=35 5x9=45 The patterns that can be observed in the table are as follows: 1. The ones place has numbers from 9 to O in decreasing order. 2. The tens place has numbers from O to 9 in increasing order 3. The sum of the digits of each product is always 9. D ivision Find the pattern and fill in the blanks. 1,1,1,+3=3'7 +78=37 333+9=37 444 + +2L=37 :15=37 888 i Observe the pattern and fill in the blanks. 3 x 19 = (3 x 20)-3 = 60-3 = 57 4 x 19 = (4 x 20]| - 4 = 80 - 4 = 76 5x19= 6x19= 7xt9= 8x19= 9x19= 10x19=

1. complete the patterns for the following addition problems. a. 1+2+3+4=L0 b. 1+2+3+4+5=15 2+3+4+5=14 2+3+4+5+6=20 3+4+5+6= 3+4+5+5+7= 4+5+6+7= 4+5+6+7+8= 5+6+7+8= 5+6+7+8+9= l+3=4=2x2 x d. 11 + 12 +... + 20 = 155 1+3+5=9=3x3 2l+22+...+30=255 3I+32+...+4O= 1+3+5+7=_= L+3+5+7+9= 4I+42+...+50= 1+3+5+7+9+11= 51+ 52 +... + 60 = 2. Complete the following patterns. b. 5-2=3 a. 9-6=3 50-20=30 12-6=6 500 - 200 = 15-5= 5000 - 2000 = 18-6= 50000 - 20000 = 2l-6= d. 1-0=1 c. 90-30=60 11-10=1 89-29=60 IT7 - 88-28= 1111- 87 -27 = 86-26= L1L11- 3. Find the patterns and complete the following multiplication problems. a. 1x1=1 b. 1x 101= (1x L00) + 1= 101 lLx')\"L=t2l zxLOL=12x700l|+2=2O2 tLlxLTl=I232I 3x101=(3x100)+3= 1111 x 1111 = 4x101=(4x100)+4= 5 )< 101 =(5x100)+5= IILI1 x 1LLLL =

1x8+1=9 = 9876 d. (2x2],-(!xtl=4-L=3 L2x8+2=98 = 98765 (3x3)-(2x2) = 9-4= s 123x8+3=987 x8+ (ax4)-(3 x 3) =_- x8+ (sxs)-(axa)=_- (6x6)-(5 xs) =_- 4. Solve the problems by following the given pattern. a. L2+ t2=t b. 400000+2=200000 !20+t2=tO 40000-2=20000 =12=100 4000+2= 400+2= + 12 = 1000 + 12 = 10000 4Q+2= 32+a=4 d. (10-1)+9=9+9=1 320+8=40 (100-1)+9=99+9=11 +8=400 (1000-1)+9=999+9= +8=4000 (10000-1)+9=9999+9= + 8 = 40000 (100000- 1)' 9 = 99999 + 9 = Observe the pattern in the first figure and fill in the circles in the other rwo figures by following the same pattern. 400 o. a{ro{s{o 1s0 x 2s0 rao{ztsxdr-s so{ro{rso Tessellation Tessellation is the process of creating a design using the repetition of geometric shapes without leaving any gaps. A honeycomb is an example of a natural tessellation and a floor tile pattern is an example of a man-made tessellation. Honeycomb Floor pattern

1. Colour the following to form a beautiful tessellation pattern. b. 2. Create your own tessellation pattern and colour it. Symmetry lf we fold a figure in half, such that the left and right halves match exactly, then the figure is said to have symmetry. The rine dividing the figure into two identicar harves is caled the line of symmetry. Many of the things that we see around us are beautiful because they are symmetrical.

A shape can have more than one line of symmetry. Take a rectangular sheet of paper, fold it length-wise to get the vertical line of symmetrv and fold it breadth-wise to get the horizontal line of symmetry. Vertical line of symmetry Horizontal line of symmetry words like MOM ond wow show verticol symnerry. Apart from the shapes, some of the letters of the English alphabet also have more than one line of symmetry H@ fl Rongolis are popular in our countrv. you can observe symmetry in them. Mirror lmage When a mirror is placed on the line of symmetry of a symmetrical figure, an image of one_ half is formed. This image wi fa| compretery on the other harf of the figure. This image is called a mirror image or refrection. we can arso say that the two harves of a svmmetrical figure are mirror images of each other. siE \\i/ KizA line of symmetry divides a figure into mirror images. 1. Draw the line(s) of symmetry for the following figures. a. b. 2. Draw the mirror i mages of the following figures. \"Ja|t|lri

L5 Here is the shape of a swimming pool near Ashwin's house. Draw the lines of symmetry for the shape. How many lines of symmetry does this shape have? Before leaving for school, Ashwin goes for swimming every day for at least half an hour. Tick the correct option. Swimming helps us to . stay fit and healthy. . increase memory power. . score good marks. Write four lines about your favourite game. qS@@@ Complete the pattern to decode the message. AB D tl M N ND 24 8 LO L2 14 t6 L8 20 22 24 26 28 30 32... Decode the message. 26240L638 18 38 12 42 28: AgttrlrryqATE$ EAD Obiective: To draw the lines of symmetry, mirror image and tessellation Materials required: Notebook and pencil Method: The teacher draws a geometrical shape and asks the students to draw its line(s) of symmetry and mirror image in their notebooks. Teacher asks them to draw a tessellation Dattern with the shaoe. Students then colour the tessellation. Repeat the activity with other shapes.

uli ..\\i 'Kithe following figures, t i 't solve the following by finding the pattern. it a. 76-26=5O b. 0x9+1=t ti 75-25=50 Ixg+z=lL ii 74-24= _ L2x9+ _= tt7 i i ii 73-23= _ L23x9+ _=II77 72-22--- !234X9+-=LL!1L i 'o z.-\\d.-^!jff:A/ ^ figures.3. Draw the line(s) of symmetry for the following i i A List any four symmetrical objects that you can find around yourself. Draw their mirror images too, 5. Complete the tessellation and colour it beautifully.

I 1. circle the correct unit for measuring the following. a. Water in a tank L/ mL b. Length of a needle cm/km c. Cough syrup in a bottle L/mL o. Height of a building m/km e. Weight of a car f. A glass of milk ke/e L/mL Weight of a ball kc/ c 2. Circle the measures which add up to the measure on the left side. a.oO4kc 350 mL nHnnnn 00m 100 m L5 0mL 50 mL 50mL 50 mL 3. Fill in the blanks. cm D. 4537 g = Kg_g ML a. 272cm= d. 9kg883g= c c. 6L156mL=

ii A Rohan purchased 5 kg 250 g of potatoes and 3 kg 500 g of peas. Find the total weight of the vegetables purchased by Rohan. Two ladders measure 20 m 42 cm and 2g m 44 cm, respectively. Find the difference between the lengths of the ladders. There is 12 L 445 mL of water in a bucket. Seema used 5 L 230 mL of water to wash Moths Around Us Mr Rao planned to go for a picnic with his familv. He and his wife, Anjali, packed fruits and lunch for the journey. Anjali also took 1.2 litres of fruit juice with them. On reaching the venue, their children Sahil and Khushi found that there are four glasses for the juice, and the capacity of each glass is 300 mL. Sahil was wondering whether all the glasses will be able to hold 1.2 litres ofjuice at once. Khushi explained to her brother that 1.2 litres is equal to 12OO millilitres as 1 L = 1000 mL. This clue was enough for Sahil to calculate that each gtass can exacfly hold 300 mL of juice. Measurement of [ength You have already learnt that cm, m or km is used to measure the length of any object, the height of a buirding or the distance between two places. Metre (m) is the standard unit of measurement of length. Ahana and Akshay visited a farmhouse during their summer vacation. f trovelled 30,000 m ploce is forther from to come here. my house thon yours. This ploce is guite for I trovelled 30 km to from my house.

Who is right? Who lives farther? Who has travelled more-Ahana or Akshay? We know that 1 km = 1000 m. So, 30 km = 3O,0OO m. Thus, both have travelled the same distance. Always remember to use the abpropriate unit while measuring different objects' Smaller lengths are measured in millimetres and centimetres, like the length of a safety pin. The bigger lengths are measured in metres, like the height of a pole The geographical distance between any two places is measured in kilometres, like the distance between two cities. Conversion Table for Units of Length Comporiso is possible only omong mmLm= I\"OOO ttt=tl^. some ouontifies of meosurement. t000 We connot compore length with 1m = L00 cm t.rn =t! t copocify. ExomPle: comPorison 100 of km/m with L/mL 1cm=10mm Lmrn=!6n., is not possible. m1km = 1000 1m =;-1- km 1U00 Example 1: The length of a book is 28 cm 8 mm. Find the length in millimetres. 28cm8mm=28cm+8mm = 28 x Lo mm + 8 mm (Since 1cm = 10 mm) =280mm+8mm=288mm Thus, the length of the book in millimetres is 288 mm. Example 2: A wooden stick is 2O4O mm long. Find its length in centimetres' 2o4o mm = '01109.t = 204 cm (Since L mm = -IU1 cm) Thus, the length of the wooden stick in centimetres is 204 cm. 3:Example The length of a ladder is 41 m 53 cm. Find the length of the ladder in centimetres. 41 m53cm=41 x1O0cm+53cm (Since 1m = 100cm)

= 4100 cm + 53 cm = 4153 cm Thus, the length of the ladder in centimetres is 4153 cm. 4:Example Ajay is 140 cm tall.. Find his height in metres and centimetres. 140 cm = 100 cm + 40 cm cm= 1 m + 40 (Since 1. m = 100 cm) =Lm40cm Thus, his height in metres and centimetres is 1m 40 cm. 5:Example Raginitravelled 34 km 145 m in a day. Find the distance travelled in metres. m34km 145 m =34x 1000 m+ 145 (Since 1km= 1000 m) =34000m+145m=34145m Thus, the distance travelled in metres is 34,145 m. 6:Example Derek's office is 12,546 m awayfrom his home. Find the distance in kilometres and metres. 72546m=12000m+546m ----- -L= 12000,km+546m 15;n6q 1 rn = 1000 knr1 1000 =IZKm54bm Thus, the distance in kilometres is 12 km 546 m. 1. Convert the following into metres and centimetres. a.2350cm b. 4320 cm c. 55L0 cm 1888 cm g. 9805 cm n. 9625 cm e. 6305 cm I 8400 cm i. 7363 cm j. 8677 cm k. 9480 cm 99t2 cm 2. Convert the following into kilometres and metres. d. 28,008 m h. 97,500 m a. 32,048 m b. 23,200 m c. 54,765 m t. 92,837 m e. 65,025 m 20,700 m i. 36,517 m f. 87,125 m j. 81,357 m k. 98,677 m

3. Convert the following into centimetres. a. 23m10cm b.35m22cm c. 104 m 42 cm d. 125 m 55 cm e. 434 m c. 666 m 66 cm h. 342 m 45 cm i. 877 m f. 752 m 70 cm K. 987 m 1-2 cm j. 956 m 647 m 95 cm 4. Convert the following into metres. c, 31 km 110 m d. 35 km 550 m 74 km 31 m h. 97 km 7O7 m a. 22 km 330 m b. 23 km t. 97 km 760 m e. 76 km 600 m f 72km232m k. 94 km 884 m i. 93km657m j 81 km817 m 5. Fill in the blanks. a. 304cm=300cm+4cm= m cm m b. 4200m=4000m+200m= KM cm c. 17 m 22O cm = 1700 cm + 22O cm = m d. 14 km 342 m = 14000 m + 342 m = 6. Reema travels a distance of 12,562 m from her home to her office Find the distance travelled by Reema in kilometres and metres. 7. The total length of 8 canvases is 1243 cm. What will be the total length of the canvases in millimetres? 8. The length of a botanical garden is 7 km 234 m What is the length of the garden in metres? Addition and Subtraction of Length EE Example 1: Add 32 cm 7 mm and 27 cm 4 mm. o32 step 1: Add the millimetre column. 27 7+4= 11 mm = 1cm 1mm 60 L Regroup 1cm to the cm column' SteP 2: Add the centlmetre column. 32 + 27 + ! (carry over) = 60 cm Thus, 32 cm 7 mm + 27 cm 4 mm = 60cm L mm.

Example 2: The length of one pole is 23 m L2 cm and that of another pole is 19 m 32 cm. EEFind the difference between the lengths of the two poles. Length of the first pole z5 rz -1932Length of the second pole Difference 5 80 32 cm cannot be subtracted from 12 cm. So, borrow L m = 100 cm from the metres column and regroup 12 cm into 1l.2 cm and 23 m into 22 m. Hence, 112 cm -32 cm = 80 cm and 22 m - 19 m = 3 m Thus, the difference between the lengths of the poles is 3 m 80 cm. Example 3: The distance between point A and point B is 33 km 523 m and between point B and point C is 18 km 765 m. Find the distance between ooint A and point C through B. JJ KM 5ZJ M Elil Here,523m+765m= 33 523 Distance between A and B + 18 765 L288 m CDistance between B and 1288 m can be written as 1000 m + 288 m. Distance between A and C through B Write 288 m in the Thus, the distance between A and C throush B is 52 km 288 m. metres column and carry over 1000 m = 1 km to the kilometres column and regroup. 23cm5mm+L2cm D. 13m34cm+14m76cm c. 12km104m+15km236m 46cm8mm+3Lcm2mm e. 527m83cm+489m92cm f. 256 km 469 m + 633 km 833 m 2. Subtract. 40m 59 cm-25 m 63 cm ,r a. 31 cm5mm-L5cm2mm dd_

c. 76km538m-59km742m d. 56cm6mm-42cm 852m32cm-439m72cm f. 936 km 321 m - 783 km 260 m 3. Sonal bought a new pencil whose length was 745 mm, initially. After a few days, its length became 243 mm. Find the length of the pencil used in centimetres. 4. The height of a water reservoir is 276 m 95 cm and the height of a multi-storey building is l-03 m 55 cm. What is the difference between the heights of the water reservoir and the building? 5. In a shop, a roll of pink cloth measures 156 m and a roll of black cloth measures 178 m 45 cm. Find the total lensth of both the rolls. LS Given is the.shape of a playground near Mr lha's threehouse. Mr Jha runs around the playgroundherun in S ltimes every day. How many kilometres will a. a day? b. a week? Present in your class a few lines on the benefits of regular exercise. Tick the approximate length of the following, 1. The length of a river 25m b. 25 km c. 25 cm 2. The length of a photo frame 7mm b. 7cm c. 7km 3. The height of a child's bicycle b. 45m c. 45 mm a. 45 cm Measurement of Weight The standard unit of measurement of weight is kilogram. Gram (g) and kilogram (kg) are the commonly used units. Milligram (mg) is used for very small weights. Conversion table for units of weight 1ks= 1000e 'J-.P=101-00ks- 1s=]OOOms 1m-s=1-0-0L0s-

gtCircle the approximate weight of the following objects. 2ke/2e 7200 ks / I2oo s 15kg/150g 20kg/200s Example L: Convert 3780 grams into kilograms and grams. 3780g=3969t*799t t= 3!99 kg * 7gg - 1(since 1g = 1r1 = 3ke780g Example 2: Convert 2 kg 210 g into grams. 2kg2LAg=2kg+270g = 2 x 10009+ 210g (Since 1kg= 169911 =20OOg+2LOg=22IOe Example 3: Convert 5 g 543 mg into milligrams. 59543 mg = 5g+543 mg = 5 x 1000 mg + 543 mg (Since 1 g = 1000 mg) = 5000 mg + 543 mg = 5543 mg Example 4: Convert 1523 mg into grams and milligrams. L523 mg = 1000 mg + 523 mg (Since 1g = 1000 mg) =19+523m9 1. Convert the following into grams. 22 kg b. 35 kg c. 52 kg 120 g d. 31 kg 100 g g. 67 kg 606 g 54kC32g f. 44 kg 424 g n. /5 Kg JJU g k. 93 kg 1.20 g g82 kg257 j. 90 kg l. 99 kg 543 g 2. Convert the following into kilograms and grams. d. 4500 e a. 3423 g b. 4OO4g c. 8220 C

e. s250 e f. 8750 g ZOLO E h. 6042 g 4000 s 8700 C t. 9627 g 9505 e d. 5431 mg 3. Convert the following into grams and milligrams. h. 6745 mg I. 9453 mg a- 1223 mg b. 2635 mg c. 3524 mg e. 5234 mg g. 6234 mE d. 34 g765 mg i. 7463 mC t 6546 mg j. 7344 me k. 8254 me h. mg 4. Convert the following into milligrams. c. 25 9287 mg t. 97 e175 mg a. L2gL32mg b. 18 g 243 mg g. b5 g 6Jl mg e.429453m9 f. 55 g 987 mg i. 86 g 876 mg j. 88 g 927 mg k. 91 g 876 mg Addition and Subtraction of Weight EEExample 1: Add 34 kg 243 g and26kg452E. 34 243 Step 1: Add the grams column. 243 + 452 = 695 g + 26 452 Step 2: Add the kilograms column. 34 + 26 = 60 kg Thus,34 kg 243 g + 26kg452g= 60 kg 695 g Example 2: Subtract 55 g 827 m1trom 72 9296 mg. 827 mg cannot be subtracted from 296 mg. So, 27 29 6 borrow 1g = 1000 mg from the grams column and 56 regroup 72 g into 71 g and 296 mg into 1296 mg. 827 NoW 1296 mg- 827 mg = 469 mg 75 469 rhus,72 9296 mg- 56 g 827 mg = 15 g 469 mg Example 3; A fruit vendor has 45 kg 650 g of apples and 57 kg 5OO g of mangoes. Find the rilEtotal weight of the fruits with him. Give your answer in grams and kilograms. Quantity of apples 45 650 Quantity of mangoes + 57 500 Total quantity 103 150 lp lsffi

Here,650g+5009=11509 1150 g can be written as 1000 g + 150 g. Write 150 g in the grams column and carry over 1000 g = 1 kg to the kilograms column and regroup. Thus, the fruit vendor has 103 kg 150 g of fruits with him. Example 4: The weight of a pencil box is 35 g 194 mg with pencils and an eraser inside it. lf the weight of the empty pencil box is 24 g 50 mg, find the total weight of the pencils and the eraser. Weight of the pencil box with pencils and an eraser EEil 35 ta4 Weight of the empty pencil box 24 50 Weight of the pencils and the eraser TL 734 Thus, the total weight of the pencils and the eraser is 11 g 134 mg. 1. Add. a. L2kg342g+LOkg'27g b. L7 g 423 mg + 1.5 g 472 mg c. 25 g 74'J. mg + 28 g 827 mE d. 28 g 34 mg + 34 g 890 mg e. 57 g 140 mg + 47 e 169 mE f. 64 kg 816 g + 36 kg 691 g h. 92k9827 g+ 76 kg 941g 9.759279m9+61g836mg 2. Subtract. a. 13 kg 322 g- 10kg527 g b. 23 kg24t e- L6 kg 894 g d. 47 991.4 me- 33 g264 mg c.34g26Img-249740me f. 62 kg s10 g - 47 kg 389 g e. 53 g 257 mg - 32 g 356 mg h.88k98629-3Lkg962g g. 78 9971, mg- 42 g73Img 3. Antara mixed 1200 g of grapes and 2465 g of mangoes to make fruit salad. What is the total weight of the salad? Express the answer in kilograms and grams. 4. 534 B 112 mg of sugar is mixed with 513 g 505 mg of flour to make the batter of a cake. What is the total weight of the mixture?

5. Abhishek bought 20 kg 567 g of rice. After a few days, he found that 9 kg 625 g of rice is left. How much rice has been used? 1.. A vegetable vendor lost all weights except 2 kg and 5 kg. How will he measure vegetables weighing 2 kg, 3 kg,4 kg, 5 kg, 6 kg and 7 kg? 2. Surbhi and Saumva are of the same height. Akash is shorter than Surbhi by 2 cm and Prakash is taller than saumya by 3 cm The sum of the heights of all the four children is 401 cm. What is Surbhi's height? Measurement of Capacity ,'#i\".7 :^ j '' -.. - ;ii'ra'\"'\" Litre is the standard unit of measuring capacity. Litres and millilitres are the commonly used units. The short form of millilitre is mL and that of litre is L conversion table for units of capacity 1L =1000m1 1mL=#oL Tick the measuring cylinders that will together fill the jug completely' H H H nnH n mL200 m 200 m 200 mL1 00m L 50 mL 50 n 800 mL 50 mL 50 mL Example 1: Convert 35OO mL into litres and millilitres. 3500 mL = 3000 mL + 500 mL = 3ooo L* 5oo ..nL --L(Since 1 mL = r) 1000 = 3 L+500 mL=3 L 500 mL Example 2: Convert 22 L 10 mL into millilitres 22L1O mL = 22 x 1000 mL + 10 mL (Since 1L = 1000 mL) = 22000 mL + 10 mL = 22010 mL Example 3: convert 42340 mL into litres and millilitres. 42340 mL = 42000 mL + 340 mL

=9190010*-.oon,'r -!(Since t m1- = 1000 g1 = 42 1+ 340 m1= 42 L 34o mL Example 4: Convert 62 L 18O.mL into millilitres. 62 L 180 mL = 62 x 1000 mL+ t80 mL (Since 1L = 1000 mL) = 62000 mL + 180 mL = 62180 mL L. Convert the following into litres and millilitres. a. 2000 mL b. 3030 mL c. 4280 mL d. 5500 mL 34980 mL h. 91250 mL e. 6785 mL f. 7575 ml t. 93734 mL j. 73548 mL k. 84735 mL i. 24351 m1 o. 85 1 h. 95 L 566 mL 2. Convert the following into milliljtres. t. 91 L 450 mL e. 72L320 mL b. 42L254 mL c. 48 L 645 mL i. 83 L 736 mL 97 L 827 mL i 66L15OmL j. 77 L 8I7 mL k. 82 L 991 mL Addition and Subtraction of Capacity vm*.w;:i .,,, Example 1: Find the difference between 65 L 534 mL and 32 Lg76 mL. oJ )54 876 mL cannot be subtracted from 534 mL. 32 87 6 So, borrow L L = 1OOO mL from the litres column and regroup 534 mL into 1534 mL and 65 L into 64 L. 5Z O56 NoW 1534 mL - 876 mL = 658 mL. Thus, the difference is 32 L 658 mL. Example 2: A family consumes 342 L736 mL of water in a day, while another familv consumes 243 L 045 mL of water. Find the total amount of water consumed by both the families and also find which family consumes more water and by how much.

rE Here, 736 mL + 645 mL = 1381 mL First family consumes 342 736 1381 mL can be written as second familY consumes + 243 645 1000 mL + 381 mL. Write 381 mL in the millilitre column and carry - 586 381 over 1000 mL = L L to the litre column and regrouP. Total consumption Both the families together consume 586 L 381 mL of water daily. First family consumes 342 736 -Second family consumes 243 645 Difference 99 091 Thus, the first family consumes 99 L 91 mL of water more than the second family' 1. Add. b. 241,t763 mL+ 1-46 L 426 mL d. 346 L 513 mL+ 241L252 mL a. I32 t 433 mL + 142 L 215 mL f. 517 L725 mL + 427 L 940 mL c. 351 L 864 mL + 248 L 725 mL 427 L735 mL + 321 L 642 mL 2. Su btra ct. b. 264 L624 mL- 163 1789 mL d. 468 L 461 mL- 146 L 598 mL a. 721t54t mL - 104 L 483 mL t 863 L 251 mL - 752 L 950 mL c. 362 L 1.57 mL - 268 L 073 mL e. 592 L 682 mL - 398 L 321 mL 3. 625t726 mL of water is there in a reservoir. lf 143 L 435 mL of water is added to the reservoit what will be the total quantity of water in the reservoir? 4. A familv consumes 187 L 550 mL of milk and another family consumes 243 L 665 mL of milk. How much milk is consumed by both the families? t9_, Mr All uses 27OO mL of petrol for commuting to office every day Find the quantity of petrol used by him in six days. lf half of the distance is covered by a bicvcle, how much petrol will he save in six days? Express your answer in litres and millilitres. Write two advantages of riding a bicycle over other modes of transport'

effiffi Objective: To measure objects with a weighing balance Materials required: Weighing balance, weights, objects like pencil box, book and duster Method: Students work in pairs. One student holds the weighing balance and the other student puts an object on one pan and the weights on the o,h\"ipan. change the weights till both the pans are at the same level or balanced. Write the weight ot each obyect ln your notebook. Repeat this for several objects. eco 1

.'..........................''.''... r.:;:'. tvtarcn tne tollowing; i. 1208 mL ii. 2108 e :: a. 1028 cm iii. LL28mL i:L p, zlzo g iv. L0 m 28 cm :; c. 2 kg108g j d. 1028 mL v. 2kgI28g ::- e. -LZ5 Cm vi. 1m 28 cm : r. 1L208mL : Choose the approximate measure. {'*. 2kg/2oog 4O0 kg / 4OO mg 30m/30cm 5m/5cm 1.1/ 1c lf a basket full of vegetables weighs 14 kg 900 g and the weight of the empty basket 800 g, what is the weight of the vegetables? is The height of one building is 35 m 65 cm and that of another building is 27 m 65 cm What is the total height of the two buildings taken together? Convert the metric measures as indicated. b. 3112 cm into m and cm d. 7535 mL into L and mL a. 4430 cm into m and cm f. 5445 mm into cm and mm c. 8446 m into km and m h. 1927 mL into L and mL i e. 5681 mg into g and mg ). zttJ mm Into cm and mm l. 9415 mm into cm and mm g. 6124 g into kg and g i. L400 mg into g and mg b. L2km552m+17kmgm k. 443 cm into m and cm oo 6. Add the following: a. 43 L 342 mL + L5 L 654 mL

Saurav decided to celebrate his birthday by I inviting his friends for a partv at home. His mother Reena, being a good cook, prefers to bake the cake and prepares all eatables for his friends at home. She estimates the number of persons for the party to be around 20. She decides to make an eggless cake. For this, she mixes 500 g of sugar, 10 g of baking powder and a few drops of vanilla essence to the 1 kg of flour. She also plans to use 2OO g of extra butter with 2OO g of icing sugar for the icing on the flour She also prepares 'Dhoklas' and 4 litres of fresh lime juice for all the guests. Now answer the following questions. a. What is the total weight of all the ingredients used for making the cake? Give the answer in kilograms also. b. Reena wants to give 2OO mL of lime juice to each of the 20 guests. Does she have enough quantity of juice to do so? c. lf 5 more persons turn up for the party, how much juice eacn person get m illilitres? d. lf 200 mL of lime juice can be made with 1 lemon, how manv lerrrons Reena need for 4 litres ofjuice? F ':! !+ ! | i ! ! ! t i i I i I i i i i irE_.E rt El E E E |l rrr I r tr! I!! r r r I !r E E ft F E E E F F E. fr F I r!! r ri ii ;i ;i ii i - r r rr