Full Mathematics E-Book

Table of Contents……………………………...2 Introduction ..................................................................................................................3 Number Concept Development ……………………....................................................4 Grade 1 .......................................................................................................................5 Grade 2 .......................................................................................................................6 Grade 3 .......................................................................................................................7 Problem Solving .............................................................................................................8 Grade 1 ........................................................................................................................9 Grade 2 ........................................................................................................................10 Grade 3 ........................................................................................................................11 Computation ..................................................................................................................12 Grade 1 ........................................................................................................................13 Grade 2 ........................................................................................................................14 Grade 3 ........................................................................................................................15 Measurement ................................................................................................................ 16 Grade 1 ........................................................................................................................17 Grade 2 .........................................................................................................................18 Grade 3 .........................................................................................................................19 Money ..............................................................................................................................20 Grade 1 ..........................................................................................................................21 Grade 2 ..........................................................................................................................22 Grade 3 ..........................................................................................................................23 Geometry .........................................................................................................................24 Grade 1 ...........................................................................................................................25 Grade 2 ...........................................................................................................................26 Grade 3 ...........................................................................................................................27 Data Handling ..................................................................................................................28 Grade 1 ..........................................................................................................................29 Grade 2 ..........................................................................................................................30 Grade 3...........................................................................................................................31 Conclusion ........................................................................................................................32

Introduction This Mathematics E-Book is filled with fun and interesting activities for learners in the Junior Primary grade 1 to 3. It has been divided into 9 different headings, which have been organized in a simplified manner so that you as teacher will be able to navigate through it easily and benefit as much as possible. It is mainly focused on the 7 different top- ics, namely NCD, Problem Solving, Computation, Measurement, Money, Geometry and Data handling. These are all the topics focused on in the Namibian JP Mathematics syllabus. These activities will be very beneficial to the learners and it will help them build on the skills that they have been taught.

Number Concept Development

Counting Worksheet (number 1-10) Grade 1 Name: _____________________________ Grade 1: ____ Marks: 10 1.. Circle the correct number of objects. (4) circle 5 apples circle 7 stars circle 3 blue balls circle 8 frogs 2. Number Patterns – Fill in the missing numbers (3) 1. 1 45 8 40 2. 34 4 37 38 3. 6 10 14 3. Count the candies and write the number. (3)

Counting Worksheet (number 1-10) Answers (4) 1. Circle the correct number of objects. circle 5 apples circle 7 stars circle 3 blue balls circle 8 frogs 2. Number Patterns – Fill in the missing numbers (3) 1. 1 2 3 4 5 6 7 8 2. 34 35 36 37 38 39 40 41 3. 2 4 6 8 10 12 14 16 3. Count the candies and write the number. (3) 11 5 7

Skip counting by 2's Marks: 15 Grade 2 (5) Name: _____________________________ Grade 2: ____ 16 1. Count by 2 from 2 to 128 78 2 12 112 28 128 36 38 58 60 72 86 98 120 2. Compare the numbers. Add: > or < or = 1. 81_______16 2. 51________35 3. 33_______50 4. 62________64 5. 75_______75 6. 65________15 (6) (4) 3. Write the numbers from smallest to largest. 1. 13 41 16 59 ___________________________________ 2. 89 87 16 10 ___________________________________ 3. 80 12 51 59 ____________________________________ 4. 61 70 42 12 ____________________________________ Answers

Skip counting by 2's 1. Count by 2 from 2 to 128 (5) 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 2. Compare the numbers. Add: > or < or = (6) (4) 1. 81 > 16 2. 51 > 35 3. 33 < 50 4. 62 < 64 5. 65 > 15 6. 75 = 75 3. Write the numbers from smallest to largest 1. 13 41 16 59 13 16 41 59 2. 89 87 16 10 10 16 87 89 3. 80 12 51 59 12 51 59 80 4. 61 70 42 12 12 42 61 70

Mathematics NCD: Decomposition Grade 3 Worksheet Marks: Name: ____________________________ Grade 3: _____ 20 1. Breaking down numbers. (5) (5) e.g. 154 = 100+50+4 (6) (4) 1. 160 = ________________________2. 135 =_________________________ 3. 183 = _______________________4. 125 =_________________________ 5. 82 = ________________________ 2. Write the 3-digit number. e.g. 154= 100+50+4 1. _____________= 100 + 50 + 7 2. ___________ =300 + 60 + 5 3. _____________=300 + 20 + 3 4. ___________ =200 + 30 + 9 5. _____________=100 + 50 + 7 3. Find the missing numbers: 1) 7 + 10 + _______ = 517 2) _______ + 3 + 200 = 223 3) 10 + 4 + _______ = 514 4) _______ + 70 + 900 = 971 5) 3 + _______ + 700 = 783 6) _______ + 30 + 2 = 932 4. Round to the nearest hundred. 1. 660 = _____________ 2. 107 = ________________ 3. 413 =______________ 4. 363 =_________________

Mathematics NCD: Grade 3 Worksheet Answers 1. Breaking down numbers. (5) (5) 1. 160 = 100+60 2. 135 =100+30+5 (6) 3. 183 =100+80+3 4. 125 =100+20+5 (4) 5. 82 = 80+2 2. Write the 3-digit number. 1. 157= 100 + 50 + 7 2. 365=300 + 60 + 5 3. 323=300 + 20 + 3 4. 239=200 + 30 + 9 5. 157=100 + 50 + 7 3. Find the missing numbers: 1) 7 + 10 + 500 = 517 2) 20 + 3 + 200 = 223 3) 10 + 4 + 500 = 514 4) 1 + 70 + 900 = 971 5) 3 + 80 + 700 = 783 6) 900 + 30 + 2 = 932 4. Round to the nearest hundred. 1. 660 = 700 2. 107 = 100 3. 413 = 400 4. 363 = 400

Problem Solving

Mathematics: Problem solving Grade 1 Word Problems Worksheet Marks: Name: __________________________________ Grade 1: ______ 10 Addition and Subtraction. e.g. 3 + 2 = 5 1. John has 3 cookies his sister gave him 2 more cookies. How many cookie he having now? _______________________________________________ _______________________________________________ (2) 2. Anne has 5 apples she gave Mary some apples. Anne has 1 apple left. H many apples did she give Mary? ______________________________________________ ______________________________________________ (2) 3. Peter’s sister gave him 6 oranges. Peter ate 3. How many does he has left? _______________________________________________ _______________________________________________ (2) 4. Mary ate some bananas. Her mother bought 10 bananas. There is only 5 nanas left. How many bananas did Mary eat? _______________________________________________ _______________________________________________ (2) 5. John has 6 sweets he ate a few sweets. And now only has 3 sweets left. H mother gave him 2 more sweets. How many sweets does John have now? ___________________________________________________________(2)

Mathematics: Problem solving Grade 1 Word Problems Worksheet Answers Addition and Subtraction. e.g. 3 + 2 = 5 1. John has 3 cookies his sister gave him 2 more cookies. How many cookie he having now? 3 + 2 = 5 cookies (2) 2. Anne has 5 apples she gave Mary some apples. Anne has 1 apple left. H many apples did she give Mary? 5 – 1 = 4 apples (2) 3. Peter’s sister gave him 6 oranges. Peter ate 3. How many does he has left? 6 – 3 = 3 oranges (2) 4. Mary ate some bananas. Her mother bought 10 bananas. There is only 5 nanas left. How many bananas did Mary eat? 10 – 5 = 5 bananas (2) 5. John has 6 sweets he ate a few sweets. And now only has 3 sweets left. H mother gave him 2 more sweets. How many sweets does John have now? 6–3=3 3 + 2 = 5 sweets (2)

Marks: Mathematics: Problem solving 10 Grade 2 Word Problems Worksheet Name: ______________________________________ Grade 2: _______ The grade two class took a trip to visit a farm last Friday. Everyone had a great time there! 1. 7 learners in Ms. Abigail’s class went on the trip and 3 learners called in sick and cou not go on the trip. How many learners are there in her class? ______________________________________________________________ (2) 2. In the petting zoo, there were 5 goats and 5 pigs. On the other side of the farm, the were 2 pigs. How many pigs were there? ________________________________________________________________ (2) 3. There were two wagons in the farm. Each wagon took 8 learners. How many learne were on the wagons? ________________________________________________________________ (2) 4. The farm prepared some drinks for the students. There were 3 trays of tea and 4 tray juice. How many trays of drinks were there? _________________________________________________________________ (2) 5. Write the addition sentence that fits this: “The student helped with the harvesting at farm, there are harvested 3 boxes of pumpkin and 9 boxes of tomatoes. They harveste 12 boxes in total.” ______________________________________________________________ (2)

Mathematics: Problem solving Grade 2 Word Problems Worksheet Answers 1. 7 + 3 = 10 (2) There are 10 learners in her class. 2. 5 + 2 = 7 (2) There were 7 pigs. 3. 8 + 8 = 16 (2) There were 16 learners on the wagon. 4. 3 + 4 = 7 (2) There are 7 trays of drinks. 5. 3 + 9 = 12

Mathematics: Problem Solving Grade 3 Word Problems Worksheet Addition Word Problems Marks: Name: ____________________________ Grade 3: _________ 15 Charlie and his father, a builder, decided to build a treehouse in their back yard. 1. In order to start constructing the house, Charlie and his father needed to gather some wood from forest. If they initially have 15 extra planks of wood in the house and Charlie and his father got 10 pla of wood each, how many pieces of wood do they have in total? _______________________________________________________________ (3) 2. While building the house, Charlie noticed that they were running out of nails, so he told his father h going to buy some. If they still have 9 nails left and Charlie bought 2 boxes of nails, the big one cont ing 55 nails and the small one containing 31, how many nails will they have? _________________________________________________________________ (3) 3. The treehouse is almost done; all they need is to paint it. His father estimated that they will use 20 l of white paint, 11 liters’ of green paint and 4 liters of brown paint and 6 paintbrushes. How many liters of paint would they buy in total? _________________________________________________________________ _________________________________________________________________ (3) 4. To have a more stable treehouse, Charlie’s father decided to tie the corner posts of the house to tree itself. He used 24 meter of rope for the first post, 20 meter on the second, 14 meter on the third a 12 meter on the fourth. How many meter of rope were used? _________________________________________________________________ (3) 5. Upon finishing the treehouse, Charlie’s mother served them freshly baked cookies. If Charlie ate 15 cookies, his father ate 10 and his mother only ate 5, please write an equation to show, how many co were eaten in total? _________________________________________________________________ (3) _________________________________________________________________

Mathematics: Problem Solving Grade 3 Word Problems Worksheet (3) Addition Word Problems (3) (3) Answers (3) (3) 1. 15 + 10 + 10 = 35 There are 35 planks of wood. 2. 9 + 31 + 55 = 95 They have 95 pieces of nails. 3. 24 + 20 + 14 + 12 = 70 Charlie’s father used 70 meters of rope. 4. 20 + 15 + 34 = 69 They should buy a total of 69 liters of paint. 5. 15 + 10 + 5 = 30 There were 30 cookies eaten.

Computation

Computation Grade 1 Addition Worksheet Name: ___________________________Grade 1: _____ Find each sum – use adding doubles: Total :10 marks Example: 3 + 4 = 3 + 3 + 1 = 6 + 1 = 7 1. 4 + 3 = 9 + 10 = 4+6= 3+3= (2) 2. Add the objects and write the sum. (4) 1. 2. 3. 4. 3. Draw lines to divide these shapes into 4 equal parts. (4)

Computation Grade 1 Addition Worksheet Answers 1. 4 + 3 = 7 9 + 10 = 19 4 + 6 = 10 3 + 3 = 6 (2) 2. Add the objects and write the sum. (4) 1. 18 2. 14 3. 20 4. 18 3. Draw lines to divide these shapes into 4 equal parts.

Mathematics: Subtraction Grade 2 Subtraction Worksheet marks 20 Name: ______________________Grade 2: _____ 1. Find the difference. (6) 1. 81 - 3 = _________ 2. 27 - 8 = ________ 3. 52 - 8 = _________ 4. 73 - 2 = ________ 5. 59 - 2 = _________ 6. 35 - 7 = ________ 2. Add together. 1) 22 + 66 = __________ 2) 27 + 11 = __________ 3) 38 + 10 = ______ 4) 45 + 42 = __________ 5) 24 + 50 =___________ 6) 25 + 42 =_______ (6) 3. Mixed addition and subtraction. 30 + 30 – 15 = 25 + 36 -12= 52 + 10 – 3 – 3= 56 + 61 + 70 = 33 + 20 + 50 = 50 – 10 – 1 = (6) 4. Draw lines to divide these shapes into 2 equal parts. (2)

Mathematics: Subtraction Grade 2 Subtraction Worksheet Answers marks : 20 1. Find the difference. (6) 1. 81 - 3 = 78 2. 27 - 8 = 19 3. 52 - 8 = 44 4. 73 - 2 = 71 5. 59 - 2 = 57 6. 35 - 7 = 28 2. Add together. 1) 22 + 66 = 88 2) 27 + 11 = 38 3) 38 + 10 = 48 4) 45 + 42 = 87 5) 24 + 50 =74 6) 25 + 42 =67 (6) 3. Mixed addition and subtraction. 30 + 30 – 15 = 45 25 + 36 -12= 49 (6) 52 + 10 – 3 – 3= 56 56 + 61 + 70 = 47 33 + 20 + 50 = 103 50 – 10 – 1 = 39 4. Draw lines to divide these shapes into 2 equal parts. (2)

Mathematics: Multiplication and Division Worksheet marks: 15 Name: _____________________ Grade 3: ____ 1. Find the answer. Decomposing. e.g. 75 x 3 = (70 x 3) + (5 x 3) = 210 + 15 = 225 1. 120 x 4 =___________________________ 2. 78 x 5 =___________________________ 3. 100 x 3 =___________________________ 4. 65 x 2 =___________________________ 5. 38 x 10 = ___________________________ (5) 2. Divide the food between the kids & write the division equation

Mathematics: Multiplication and Division Work- sheet Answers 1. Find the answer. Decomposing. 1. 120 x 4 = (100 x 4) + (20 x 4) + (0 x 4) = 400+80+0=480 2. 78 x 5 = (70x5) + (8x5) = 350 + 40 = 390 3. 100 x 3 = (100 x 3) = 300 4. 65 x 2 = (60 x 2) + (5 x 2) = 120 + 10=130 5. 38 x 10 =(30 x 10) + (8 x 10) = 300 + 80= 380

Measurement

Name: ____________________________ Grade 1: _____ Longer / Shorter Grade 1 Measurement Worksheet 10 Look at the pictures in the boxes. Answer the question by circling the correct picture. Which is longer? Which is shorter? Which is shorter? Which is longer? Which is longer? Which is shorter?

Longer / Shorter Which is shorter? Answers Which is longer? Which is shorter? Which is Which is longer? longer? Which is shorter?

Telling time - whole hours Grade 2 Time Worksheet Name: ________________________________ Grade 2: _______ Write the time below each clock.

Answers Write the time below each clock. 1. 2. 3. 7:00 2:00 6:00 4. 5. 6. 11:00 1:00 8:00 7. 8. 9. 4:00 5:00 3:00

Telling time - whole hours (draw the clock) Grade 3 Time Worksheet Name: _______________________________ Grade 3: _____ Draw the time shown on each clock. 1. 2. 3. 4:00 12:00 9:00 4. 5. 6. 1:00 6:00 8:00 7. 8. 9. 3:00 10:00 7:00

Answers 1. 2. 3. 4:00 12:00 9:00 4. 5. 6. 1:00 6:00 8:00 7. 8. 9. 3:00 10:00 7:00

Money

Money Grade 1 Money Worksheet Name: ________________________________Grade1: ____ Name the properties and identify the different coins below. e.g.  N$ 5  gold color  big and round

Money Grade 2 Worksheet Name: ___________________ Grade 2: _____ How many 10 cents is there in 10 Namibian dollar? e.g. N$ 1 = 10 ten cents 1. 2. 3. Count together the cents below. 1. 10 c + 5 c +15 c =___________________ 2. 15c + 20c +10c =___________________ 3. 5c + 5c + 5c + 5c =___________________ 4. 50c + 50c + 50c =____________________ 5. 10c + 50c + 5c =____________________

Money Grade 3 Money Worksheet Name: __________________________ Grade 3: _____ Express the cents in dollars Express the dollars into cents 1. 260c = 1. N$ 5.36 = 2. 526c = 2. N$ 3.65 = 3. 321c= 3. N$ 6.38 = 4. 650c= 4. N$ 8.20 = 5. 265c = 5. N$ 2.50 = Show all the notes, coins, and cents in the below money. e.g. N$ 15.30 = N$10 + N$ 5 + 30 c 1. N$ 25.25 =___________________________________ 2. N$ 38.90 =___________________________________ 3. N$ 50.35 =___________________________________ 4. N$ 10.39 =___________________________________ 5. N$ 49.55 =___________________________________

Geometry

Matching shapes to names (2-dimensional) Grade 1 Geometry Worksheet Name: ___________________________________ Grade 1: ______ Color in the shapes, circle RED, square ORANGE, triangle GREEN, rectangle BLUE. Draw a line between a shape and its name. rectangle circle triangle square

Identifying 3-D Shapes Grade 2 Geometry Worksheet Marks: 10 Name: ____________________________________ Grade 2: _____ Color all the cones RED, all the spheres BLUE, all the cylinders GREEN and all the cubes YELLOW. 2. Circle the correct answer for each of the followings. Rectangle / Circle / Rectangle / Circle / Square / Circle / Triangle Square Triangle Circle / Rectangle / Rectangle / Square / Square / Circle / Triangle Circle Rectangle

Identifying 3-D Shapes Grade 2 Geometry Worksheet Answers Rectangle / Circle / Rectangle / Circle / Square / Circle / Triangle Square Triangle Circle / Rectangle / Rectangle / Square / Square / Circle / Triangle Circle Rectangle

Matching 3-D shapes to real objects Grade 3 Geometry Worksheet marks: 10 Name: _______________________________________________ Grade 3: _________ Circle the name of shape which best matches the real life object in the picture. Cone / Cube / Cylinder Cone / Sphere / Cylinder Cylinder / Cone / Cube Cone / Cube / Cylinder Sphere / Cube / Cylinder Cone / Sphere / Cylinder Cone / Sphere / Cylinder Cone / Cube / Cylinder Sphere / Cone / Cube

Matching 3-D shapes to real objects Answers Cone / Cube / Cylinder Cone / Sphere / Cylinder Cylinder / Cone / Cube Cone / Cube / Cylinder Sphere / Cube / Cylinder Cone / Sphere / Cylinder Cone / Sphere / Cylin- Cone / Cube / Cylinder Sphere / Cone / Cube der

Data Handling

Sorting animals into groups marks: 10 Data Handling Worksheet Name: ______________________________________Grade 1: __________ Draw lines to connect and sort each animal according to their number of legs. 4 - legs 2 - legs 0 - legs

Answers 2 - legs 0 - legs 4 - legs

Greeting cards pictograph 15 Data Handling Worksheet Name: _________________________________ Grade 2 ________ Anna made greeting cards for her friends from Monday to Friday. Write the number of cards each day inside the box. Number of greeting cards made by Anna Monday Tuesday Wednesday Thursday Friday = 1 card How many greeting cards did Anna make each day? Monday Thursday Tuesday Friday Wednes- day

Answers How many greeting cards did Anna make each day?

Board game scaled bar graph marks: 15 Data handling Worksheet Name: ____________________________________Grade 3: ____________ Four friends recorded their game scores. Create a bar graph and answer the questions. Name Olivia James Liam Nora Points 10 8 12 6 Board game points 12 10 8 6 4 2 0 Olivia James Liam Nora 1. Who got the highest points? __________ 2. How many points did James and Nora get? __________ 3. How many less points did Olivia get than Liam? __________ 4. How many more points did James get than Nora? __________ 5. Two kids got a total of 16 points. Who were they? __________ 6. Who got a score higher than Nora but less than __________ Olivia?

Answers Name Olivia James Liam Nora 8 12 6 Points 10 Board game points Olivia James Liam Nora 1. Who got the highest points? Liam 2. How many points did James and Nora get? 14 3. How many less points did Olivia get than Liam? 2 4. How many more points did James get than Nora? 2 5. Two kids got a total of 16 points. Who were they? Olivia and Nora 6. Who got a score higher than Nora but less than Olivia? James

Conclusion This book is fully based on activities/worksheet that can be used for Junior Primary grade 1-3 learners. Most of it was inspired from the MATHEMATICS SYLLABUS GRADES 1 – 3. NCD Computation Problem Solving Mathematics Syllabus Measurement Geometry Data handling