Oxford Mathematics 2

UNIT 3: TOPIC 1 Notes and coins To make $1, you can use: Ho w else can you make $1? Guided practice 1 Complete the table. How many ... do you need Draw the Write the of these ... answer to make this? answer 5c + 5c = 10c 2 Complete the table. How many of ... do you need Draw the Write the these ... answer to make this? answer 48 OX FOR D U N I V E RSI T Y PR E S S

Independent practice 1 Circle coins that equal: a $1 b $2 c 20c d 75c 2 Circle notes that equal: a $20 b $50 c $10 0 d $45 OX FOR D U N I V E RSI T Y PR E S S 49

3 How much is … ? Is a $5 note or a 50c coin worth more? Why? 4 Order the totals from smallest to largest. Smallest amount Largest amount 50 OX FOR D U N I V E RSI T Y PR E S S

Extended practice 1 Using the coins and notes we have looked at in this topic, draw 3 dierent ways to make: a $2 b $50 c $25 2 a Find 4 ways to make 20c. b How many ways can you make 25c? OX FOR D U N I V E RSI T Y PR E S S 51

UNIT 3: TOPIC 2 = Counting money 20c + 40c = 60c How much money? I can use skip counting Guided practice to make it easier. Count how much. 2 1 52 OX FOR D U N I V E RSI T Y PR E S S

Independent practice 1 Make 4 0c with: a 5c coins b 10c coins c 20c coins 2 Make $10 0 with: a $10 notes b $20 notes c $50 notes OX FOR D U N I V E RSI T Y PR E S S 53

3 Rearrange the coins to make them easier to count. a How much? b How much? c How much? 54 OX FOR D U N I V E RSI T Y PR E S S

Extended practice 1 Using the coins we have looked at in this topic, draw the least number of coins you could use to make: a $3.50 Number of coins: b $6.8 5 Number of coins: 2 a How much? b How much would you have le f t over from this amount if you spent: i $20? ii $45? iii $32? 3 a How much? b How much would you have le f t over from this amount if you spent: i $20? ii $45? iii $32? OX FOR D U N I V E RSI T Y PR E S S 55

UNIT 4: TOPIC 1 Describing patterns Last digit pattern counting by f ives: 5 ,0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Guided practice 1 Find the last digit pattern, then continue the pattern on the number line. a Counting by twos: , , , , 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 b Counting by threes: , , , , , , ,,, 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 c Counting by tens: 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 Which number pattern is the longest? 56 OX FOR D U N I V E RSI T Y PR E S S

Independent practice 1 a Circle the f inal digits in the pattern. 4 8 12 16 20 24 b The pattern is counting by: c Complete the pattern. 2 a Circle the f inal digits in the pattern. 80 75 70 65 60 55 b The pattern is counting by: c Complete the pattern. 3 Find the missing numbers. a 20 30 40 60 90 36 b 50 46 44 42 39 c 4 9 14 24 d 30 27 24 15 OX FOR D U N I V E RSI T Y PR E S S 57

4 Join the dots by following the pattern. 12 15 18 21 6 9 3 45 33 30 42 0 24 48 39 36 27 5 a Circle the numbers counting by 5 from 0. b Shade the numbers counting by 2 from 0 in yellow. c Shade the numbers counting by 3 from 0 in red. 6 Which number pattern has the green circle around it? 7 Which numbers are in both the tens and the f ives patterns? 8 Which numbers are in the twos, threes, f ives and tens patterns? 58 OX FOR D U N I V E RSI T Y PR E S S

Extended practice 1 1 2 3 4 5 6 7 8 9 10 a Circle the numbers counting 11 12 13 14 15 16 17 18 19 20 by 5 from 3. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 b What is the last digit 41 42 43 44 45 46 47 48 49 50 pat ter n? 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 c Colour the numbers 91 92 93 94 95 96 97 98 99 100 counting by 3 from 2. d What is the last digit pattern? 2 What would you be counting by if the last digit pattern was: a 2, 7, 2, 7, 2, 7? I wonder if the patterns are going for wards or back wards. b 0, 8, 6, 4, 2, 0, 8, 6, 4, 2? c 7, 7, 7 3 a Use these numbers to make a pattern. 37 57 7 27 47 67 17 b What are you counting by? OX FOR D U N I V E RSI T Y PR E S S 59

UNIT 4: TOPIC 2 Number sentences Two monsters went shopping. 2+3=5 They met three more monsters. How many altogether? Guided practice 1 Write a number sentence for the word problems. a Andrew had 3 cars. He was Number sentence given 4 more for his bir thday. + = How many did he have altoge ther? b Abbey had 8 balloons. But 3 Number sentence of them popped. How many − = did she have le f t? c There were 9 lemons on the Number sentence tree. Then 5 new lemons grew. + = How many lemons now? Which words sho w you that it is an addition problem? 60 OX FOR D U N I V E RSI T Y PR E S S

Independent practice 1 Draw the problem, then write a number sentence to solve it. a Tessa has 15 cupcakes. She Pic ture gives 6 to her friends. How many does she have le f t? Number sentence: b Hamish has 9 pencils and Pic ture Primrose has 4 pencils. How many more pencils does Hamish have? Number sentence: c There are 13 candles on Pic ture the cake. Linus blows out 7 of them. How many are still lit? Number sentence: d Laura read 10 books in Pic ture April and 6 books in May. How many did she read altoge ther? Number sentence: 61 OX FOR D U N I V E RSI T Y PR E S S

2 Write a word problem to match the number sentence. a 8 + 4 = 12 b 15 – 5 = 10 c 16 + 5 = 21 3 Decide if each word problem is addition or subtrac tion. a Remy scored 14 points on Monday and 17 points on Tuesday. What Addition Subtrac tion was his total point score? b Jay had 17 marbles. He bought another 12. How many does he Addition Subtrac tion have now? c Nina had 16 pairs of shoes. She gave away 14 pairs. How many Addition Subtrac tion pairs does she have le f t? 62 OX FOR D U N I V E RSI T Y PR E S S

Extended practice 1 Write a word problem and number sentence to match each pic ture. a Word problem b Number sentence Word problem c Number sentence Word problem When might you Number sentence need to solve a word problem in real life? 63 OX FOR D U N I V E RSI T Y PR E S S

UNIT 5: TOPIC 1 This book has Length and area an area of 12 sticky notes. This book is 3 hand spans long. Why might I need to kno w the area of something? Guided practice 1 Use your hand span to f ind the length of: a this book b your table c the whiteboard Student Book PY P O x ford Ma thema tics Pr imar y Year s Programme Annie Facchinetti hand spans hand spans hand spans 2 Use sticky notes to f ind the area of: a a book b your table c another item Student Book PY P O x ford Ma thema tics Pr imar y Year s Programme Annie Facchinetti sticky notes sticky notes sticky notes 64 OX FOR D U N I V E RSI T Y PR E S S

Independent practice 1 Complete the table. Length Unit of length E s timat e Actual length to f ind used my arm hand span 4 hand spans my pencil my chair the door 2 Choose a unit to measure Unit: the length of these items. E raser 3 Order the items from shor test to longest. pencil eraser match toy car OX FOR D U N I V E RSI T Y PR E S S 65

4 Complete the table. A rea Unit of area E s timat e Actual area to f ind used 32 erasers my pencil case erasers my writing book my lunch box my eraser 5 Find the area of each shape. Would a frisbee be a good unit to measure area with? a b squares squares c d e squares squares squares 6 Circle the shape with the largest area. OX FOR D U N I V E RSI T Y PR E S S 66

Extended practice 1 Find the length and area of each shape using units of your choice. Length 2 1 erasers 2 A rea 9 f inger tips Length A rea Length A rea Length A rea 2 Circle the longest shape. 3 Put a tick on the shape with the greatest area. 4 Draw a star on the shape with the smallest area. OX FOR D U N I V E RSI T Y PR E S S 67

UNIT 5: TOPIC 2 Metres and centimetres 3m We measure the 4m length of long items in metres (m). What are some things we might measure in metres? Guided practice 1 Use a metre ruler to f ind: a the length of your classroom. b the width of a bookcase. me tres me tres c the height of the door. d the width of the whiteboard. me tres me tres 68 OX FOR D U N I V E RSI T Y PR E S S

Independent practice 1 Find items you think f it the estimates, then check with a metre ruler. Item E s timat e Actual length mathematics book less than 1 metre less than 1 metre less than 1 metre about 1 metre more than 1 metre 2 Draw lines to match the items with the estimates. less than 1 metre about 1 metre more than 1 metre S TOP OX FOR D U N I V E RSI T Y PR E S S 69

80 cm We measure the length of small items in centimetres (cm). Student Book PY P 13 cm O x ford Ma thema tics There are 100 centimetres Pr imar y Year s Programme in 1 metre. 30 cm Annie Facchinetti Guided practice 1 Use a 30 cm ruler to f ind: a the length of your pencil. b the width of this book. Student Book PY P O x ford Ma thema tics Pr imar y Year s Programme centime tres Annie Facchinetti centime tres c the width of your hand span. d the length of your pencil case. centime tres centime tres 70 OX FOR D U N I V E RSI T Y PR E S S

Independent practice 1 Find items you think f it the estimates, then check with a 30 cm ruler. Item E s timat e Actual length my eraser less than 30 cm 5 cm less than 30 cm about 30 cm more than 30 cm 2 Draw lines to match the items with the estimates. less than 30 cm about 30 cm more than 30 cm OX FOR D U N I V E RSI T Y PR E S S 71

Extended practice 1 Would you measure these items in metres or centimetres? a b c m cm m cm m cm d e f m cm m cm m cm 2 Which of these items do you estimate is the longest? 3 Which is the shor test? 4 How long might the couch be? 5 How long might the banana be? 72 OX FOR D U N I V E RSI T Y PR E S S

UNIT 5: TOPIC 3 The capacity of Volume and capacity this jug is 4 cups. The volume of this objec t is 6 blocks. Guided practice 1 What is the volume of each objec t? a b blocks blocks 2 Tick to estimate the capacity of each container. Volume is ho w much space an object a takes up. Capacity is ho w much a container holds. more than 2 coffee cups less than 2 coffee cups b more than 2 coffee cups less than 2 coffee cups OX FOR D U N I V E RSI T Y PR E S S 73

Independent practice 1 A B C D E a Write the letters to order by volume. Smallest volume Largest volume b Which objec ts have a bigger volume than E? c Which objec ts have a smaller volume than C? 2 a Which container has the A C B biggest capacity? 74 b Which container has the smallest capacity? D c Which containers hold more E than D? d Which containers hold less than B? OX FOR D U N I V E RSI T Y PR E S S

3 Circle the objec ts with a volume of: a 8 cubes. b 10 cubes. 4 Number the items in each group 1, 2, 3 from smallest to largest capacity. a Ho w could I measure the capacity of a container? b OX FOR D U N I V E RSI T Y PR E S S 75

Extended practice 1 Find 1 jug and 4 smaller containers. a Estimate how many of each container will f ill the jug. b Check and record the results. C ont ainer E s timat e C apacity 2 a Build 3 different models using 8 blocks. b Draw your models. 3 Selec t whether each pic ture is showing capacity or volume. Capacity is 7 blocks. Capacity is 3 cups. Volume Volume 76 OX FOR D U N I V E RSI T Y PR E S S

UNIT 5: TOPIC 4 Mass heavier lighter equal The dog has a greater The apple and the pear mass than the teddy. Guided practice 1 Circle the heavier objec t. I wonder if bigger objects are always heavier. a b c 2 Circle the objec t with the smaller mass. a b c OX FOR D U N I V E RSI T Y PR E S S 77

Independent practice 1 Order by mass. A B C D E Smallest mass Largest mass 2 Draw the objec ts at the correc t end of the balance scale. a b c d 78 OX FOR D U N I V E RSI T Y PR E S S

3 Choose 3 pairs of objec ts. Ho w else can you of something? a Record the objec ts in the table. b Estimate which item in the pair is heavier. c Use a balance scale to check. Record the answer. Item 1 Item 2 I estimate this item The item with the will be heavier: greater mass was: 4 Get a balance scale and a large handful of counters. a Choose objec ts that you think will have lighter, heavier and about the same mass as the counters. b Check with the balance scale. c Record the results. Result I think this item will be lighter. I think this item will be heavier. I think this item will be about the same. OX FOR D U N I V E RSI T Y PR E S S 79

Extended practice 1 a Which item is the heaviest? b Which two items have the same mass? c Which item is the lightest? d Do the shoes or the book have a greater mass? 2 Use a balance scale to f ind items that balance: a your pencil case. b a ruler. c a book. d a pencil. 80 OX FOR D U N I V E RSI T Y PR E S S

UNIT 5: TOPIC 5 Time 2 o’clock quar ter past 2 half past 2 quar ter to 3 Why do we say “quarter past ” and “quarter to”? Guided practice 1 What number is the minute hand pointing to at: a b c d 5 o’clock? quar ter to 6? quar ter past 11? half past 8? 2 Draw a line to match the clocks to the times. a b c d quar ter to 11 half past 4 9 o’clock quar ter past 6 OX FOR D U N I V E RSI T Y PR E S S 81

Independent practice 1 Draw in the minute hands. a half past 3 b quar ter past 1 c 7 o’clock d quar ter past 12 e quar ter to 7 f half past 6 2 Draw in the hour hands. a quar ter past 3 b 8 o’clock c quar ter to 10 d half past 5 e quar ter to 9 f 12 o’clock Why do you think it is called the “hour hand”? 82 OX FOR D U N I V E RSI T Y PR E S S

3 Draw the times on the clocks. a quar ter to 5 b quar ter past 8 c half past 1 d quar ter past 10 e 6 o’clock f half past 11 What ’s another way of saying “half past ”? 4 Write in the times. OX FOR D U N I V E RSI T Y PR E S S 83

Extended practice 1 What time will it be in: a 1 hour? b half an hour? c quar ter of an hour? d 2 hours? 2 Fill in the missing pieces. a b c 2:15 : 3:45 d 3 o’clock quar ter to e f 12:0 0 : 15 : quar ter past 7 84 OX FOR D U N I V E RSI T Y PR E S S

UNIT 5: TOPIC 6 Measuring time How long does it take to write the alphabet? Sam: A lex: Gina: 35 seconds 45 seconds 30 seconds What could you doin one second? Guided practice 1 Look at the pic ture above. a Who was the quickest? b Who took the longest? c Who was five seconds slower than Gina? 2 There are 60 seconds in 1 minute. It takes 1 minute for the second hand to go right round the clock. a 120 seconds? b 180 seconds? 3 There are 60 minutes in 1 hour. It takes 1 hour for the minute hand to go right round the clock. 60 minutes How many minutes in: a 2 hours? b half an hour? OX FOR D U N I V E RSI T Y PR E S S 85

Independent practice 1 There are 24 hours in a day. a 2 days = hours b If you sleep 10 hours in one day, how many hours are you awake? 2 There are 7 days in a week. a 14 days = weeks b 4 weeks = days c 21 days = weeks days d 10 weeks = February is the only month with exactly four weeks, expect in a leap year when 3 A month is about 4 weeks. a 2 months = about weeks b March has weeks and days. 4 There are 12 months in a year. Your birthday occurs every There are 52 weeks in a year. 12 months, or 52 weeks. a 4 8 months = years b 3 years = months years c 104 weeks = 86 OX FOR D U N I V E RSI T Y PR E S S

5 Draw lines to match the times to the events. T ime E vent A few seconds Sleeping at night A few minutes A football season A few hours Eating a sandwich A few days Becoming a top athlete A few weeks Writing your name A few months Reading a chapter book A few years The school summer holidays 6 What takes a few minutes to do at school? Draw and write it. OX FOR D U N I V E RSI T Y PR E S S 87

Extended practice You will need a stopwatch for the ac tivities on this page. 1 When the second hand moves from one number to the nex t on a clock, 5 seconds have passed. Skip count to nd the number of seconds that have passed from the top number to: a number 2. b number 4. c the bottom number. d number 10. 2 With a par tner, try to guess when 10 seconds has passed by following the steps below. • Close your eyes. • Using a stopwatch, your partner will tell you when to start counting. • Count 10 seconds in your mind. • Raise your hand when you have nished counting to 10. a Did you guess 10 seconds? b Try again. Were you better this time? 3 With a par tner, time each other writing the alphabet by followingthe steps below. • Using a stopwatch, your par tner will tell you when to star t counting. • Neatly write the alphabet. • Raise your hand when you have nished. • Your par tner will tell you how many seconds it took. • Swap roles with your par tner and repeat. How many seconds did it take you? 88 OX FOR D U N I V E RSI T Y PR E S S

UNIT 5: TOPIC 7 Months and seasons Southern hemisphere seasons: December March June September January A pril July Oc tober May February August November Nor thern hemisphere seasons: June September December March July Oc tober January A pril May August November February Guided practice 1 a How many months are in a year? Which hemisphere do you live in? What are the names of the seasons where you live? When do they occur? b How many seasons are in a year? c How many months are in a season? OX FOR D U N I V E RSI T Y PR E S S 89

Independent practice 1 a Write the months of the year in order. b Write the season each month is in for both the nor thern and southern hemispheres. Month Seasons in the Seasons in the January southern hemisphere nor thern hemisphere 90 OX FOR D U N I V E RSI T Y PR E S S

2 a Write down the bir thdays of 10 people in your class. Name Bir thday What month is your birthday in? What season is it in? b Write the 10 bir thdays in the order they occur in the year. c Write the season each bir thday is in. Name Bir thday Season OX FOR D U N I V E RSI T Y PR E S S 91

Extended practice 1 In the south of Australia, some Aboriginal people have 6 seasons. A boriginal High Late Early Deep Early True spring summer winter winter spring season summer September Oc tober November February March May July November June August Months December March A pril July January May a Which of the 4 seasons is not in the Aboriginal season names? b Which seasons are the shor test? c How many months are in deep winter? d I s each Aboriginal season described above in summer, winter, autumn or spring? Aboriginal season Summer, winter, autumn or spring? High summer Late summer Early winter Deep winter Early spring True spring 92 OX FOR D U N I V E RSI T Y PR E S S

UNIT 5: TOPIC 8 Calendars January 3 4 5 6 The f irst day of January was a Monday. 14 15 16 17 18 19 20 The f irst Sunday in January was the 7th. 21 22 23 24 25 26 27 The last day of January was Guided practice What do people use calendars for? 1 a What is the f irst day of February? February Sun Mon Tues Wed Thur Fri Sat b What date is the f irst Sunday 1 2 3 4 5 in February? 6 7 8 9 10 11 12 13 14 15 16 17 18 19 c What is the last day in 20 21 22 23 24 25 26 February? 27 28 2 a How many Sundays are in November November? Sun Mon Tues Wed Thur Fri Sat b How many Saturdays? 1 2 c What day is the 13th of 3 4 5 6 7 8 9 10 11 12 13 14 15 16 November? 17 18 19 20 21 22 23 d What date is the last day in 24 25 26 27 28 29 30 November? OX FOR D U N I V E RSI T Y PR E S S 93

Independent practice 1 a How many days are in each month? JA NUA RY FE B RUA RY Sun Mon Tu e s We d Thur Fr i Sat Sun Mon Tu e s We d Thur Fr i Sat Month Days 1 2 3 4 5 6 1 2 3 7 8 9 10 11 12 13 4 5 6 7 8 9 10 14 15 16 17 18 19 20 11 12 13 14 15 16 17 21 22 23 24 25 26 27 18 19 20 21 22 23 24 28 29 30 31 25 26 27 28 M A RC H APR IL Sun Mon Tu e s We d Thur Fr i Sat Sun Mon Tu e s We d Thur Fr i Sat 1 2 3 1 2 3 4 5 6 7 4 5 6 7 8 9 10 8 9 10 11 12 13 14 11 12 13 14 15 16 17 15 16 17 18 19 20 21 18 19 20 21 22 23 24 22 23 24 25 26 27 28 25 26 27 28 29 30 31 29 30 M AY JUNE Sun Mon Tu e s We d Thur Fr i Sat Sun Mon Tu e s We d Thur Fr i Sat 1 2 3 4 5 1 2 6 7 8 9 10 11 12 3 4 5 6 7 8 9 13 14 15 16 17 18 19 10 11 12 13 14 15 16 20 21 22 23 24 25 26 17 18 19 20 21 22 23 27 28 29 30 31 24 25 26 27 28 29 30 J ULY AU G US T Sun Mon Tu e s We d Thur Fr i Sat Sun Mon Tu e s We d Thur Fr i Sat 1 2 3 4 5 6 7 1 2 3 4 8 9 10 11 12 13 14 5 6 7 8 9 10 11 15 16 17 18 19 20 21 12 13 14 15 16 17 18 22 23 24 25 26 27 28 19 20 21 22 23 24 25 29 30 31 26 27 28 29 30 31 b On this calendar, which SEP TEMBER OC TOBE R months have 5 Sundays? Sun Mon Tu e s We d T h u r Fr i Sat Sun Mon Tu e s We d T h u r Fr i Sat 1 1 2 3 4 5 6 2 3 4 5 6 7 8 7 8 9 10 11 12 13 9 10 11 12 13 14 15 14 15 16 17 18 19 20 16 17 18 19 20 21 22 21 22 23 24 25 26 27 23 24 25 26 27 28 29 28 29 30 31 30 DECEMBE R c On this calendar, which NOV E M B E R Sun Mon Tu e s We d T h u r Fr i Sat Sun Mon Tu e s We d T h u r Fr i Sat 1 months star t on a Thursday? 1 2 3 2 3 4 5 6 7 8 4 5 6 7 8 9 10 9 10 11 12 13 14 15 11 12 13 14 15 16 17 16 17 18 19 20 21 22 18 19 20 21 22 23 24 23 24 25 26 27 28 29 25 26 27 28 29 30 30 31 94 OX FOR D U N I V E RSI T Y PR E S S

2 a If today is the 4th, what will be May the day and date in 2 weeks? Sun Mon Tues Wed Thur Fri Sat 1 2 3 4 5 6 7 8 9 10 11 b What day is 9 days af ter the 12 13 14 15 16 17 18 13th of May? 19 20 21 22 23 24 25 26 27 28 29 30 31 c Which days are there 5 of in the month? d If you went on holidays on the 3rd of May for 11 days, on which day would you get back? e How many days is it from the 17th to the 23rd of May? f Which month comes af ter May? Does May always start on a Wednesday? g Which month comes be fore May? OX FOR D U N I V E RSI T Y PR E S S 95

Extended practice 1 a Fill in the name of the Month: current month. Sun Mon Tues Wed Thur Fri Sat b Fill in the dates on the correc t days. c What day does the month star t on? d How many days are in the month? 2 This calendar shows one month of the year. Sun Mon Tues Wed Thur Fri Sat a Could it be February? 1 2 3 4 5 b Which months could it be? 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 c How many full weeks are there? d What date is the third Thursday of the month? 96 OX FOR D U N I V E RSI T Y PR E S S

UNIT 6: TOPIC 1 2D shapes corner The shape has 4 corners and 4 sides. The sides are straight lines. side Ho w else could you describe this shape? Guided practice 1 A hexagon has: a corners b sides 2 A pentagon has: a corners b sides 3 An oc tagon has: a corners b sides OX FOR D U N I V E RSI T Y PR E S S 97