CARIBBEAN PRImARy mATHEmATICS Workbook 5 - Macmillan ...

CARIBBEAN Primary MATHEMATICS
Second edition
Workbook 5
Laurie Sealy and Sandra Moore
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Macmillan Education
Between Towns Road, Oxford OX4 3PP
A division of Macmillan Publishers Limited
Companies and representatives throughout the world
ISBN 978-230-401228
Text © Laurie Sealy and Sandra Moore 2012
Design and illustration © copyright Macmillan Publishers Limited 2012
First published 2005
This edition 2012
All rights reserved; no part of this publication may be reproduced, stored
in a retrieval system, transmitted in any form, or by any means, electronic,
mechanical, photocopying, recording, or otherwise, without the prior
written permission of the publishers.
Designed by Oxford Designers and Illustrators
Typeset by Orchard Publishing, South Africa
Illustrated by Oxford Designers and Illustrators, Clive Goodyer and Tek-Art
Cover design by Oxford Designers and Illustrators
Printed and bound in Malaysia
2016 2015 2014 2013 2012
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Contents
Unit 1: Number
1–4 Place value 5
5–7 Value 7
8–9 Expanded form 8
10–11 Expanded numbers with
regrouping9
12 More expanded numbers with
regrouping10
13 Forming numbers 10
Unit 2: Patterns, sequence and order
1–3 Counting and ordering 11
4–5 Patterns 12
6 Revision 13
Unit 3: Operations: addition and
subtraction
1 Pre-check 14
2 Rounding number and money 14
3 Addition practice 15
4 Addition with regrouping 15
5 Adding large numbers 16
6 Subtracting large numbers 16
7–8 Regrouping with zeros 17
9 Adding and subtracting money 18
10 Subtraction practice 18
Unit 4: Decimals
1–2 Place value: tenths 19
3–4 Place value: hundredths 20
5 Rounding decimals 21
6–7 Value 21
8 Ordering and comparing decimals 22
9 Rounding money 22
10 Adding and subtracting decimals 22
11 Problem solving 23
Unit 5: Multiplication
1 Check 24
2 Arrays 24
3 Square numbers / Square roots 26
4 Multiplying 2-digit numbers 26
5 Multiplying 3-digit numbers 27
6–7 Multiplying large numbers 27
8 Multiples of 10 28
9 Multiplying by 2-digit numbers 28
10 Problem solving 29
Unit 6: Division
1 Factors 31
2 Prime numbers 31
3 Divisibility 31
4 Basic division 32
5 Using opposites: multiplying
and dividing32
6 Division speed tests 33
7 Division with remainders 33
8 Dividing larger numbers 34
9 Division using zeros 35
10 Using long division and zeros 36
11 Division with money 36
12 Dividing by 2-digit numbers 37
13 Understanding remainders 38
Unit 7: Fractions
1 Least (Lowest) Common Multiple 39
2 Greatest Common Factor (GCF) /
Highest Common Factor (HCF) 39
3 Fraction of a set 39
4 Decimals and fractions 40
5 Equivalent fractions 40
6 Simplifying 41
7 Estimating 41
8 Improper fractions and mixed
numbers41
9 Comparing fractions 42
10 Simple fraction addition 42
11 Fractions subtracted from whole
numbers42
12 Whole numbers subtracted from
mixed numbers 43
13 Mixed numbers subtracted from
whole numbers 43
14 Subtracting fractions with the
same denominator 43
15 Subtracting fractions with unlike
denominators 43
16 Estimating and problem solving 43
17 Adding mixed numbers 44
18 Subtracting mixed numbers 44
19 Strategies for problem solving 45
20 Practice with fractions 45
Unit 8: Geometry
1 Lines 46
2 Angles 46
3 Measurement of angle 47
4 Triangles 47
5 Flat shapes (2D) 48
6 Describing movement 49
7 Circles 49
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8 Lines of symmetry 50
9 Solid (3D) shapes 51
10 Nets of solid shapes 52
11 Enrichment: Coordinates on a grid52
12 Perimeter: review 53
13 Perimeter problem solving 53
14 Review of area 54
15 Calculating area 54
16 More area problems 55
17 Right-angled triangles 56
18 Volume 57
19 Enrichment: Paths and borders,
compound shapes 58
Unit 9: More decimals
1 Multiplying a decimal number by
a whole number 59
2 Multiplying decimal numbers by
decimal numbers 59
3 Problem solving 60
4 Dividing decimal numbers by
a whole number 60
5 Adding zeros to the dividend 61
6 Problem solving: dividing decimal
numbers61
7 Multiplying and dividing decimals
by 10, 100, 1000 62
8 Metric conversions 62
9 Metric conversions with decimal
numbers62
Unit 10: Measurement
1 Length 63
2 Longer lengths 63
3–5 Working with units of length 63
6–7 Practice with longer units
of length 64
8 Mass 65
9 Converting between units of mass 65
10–11 Capacity 66
12 Converting between units of
capacity66
Unit 11: More fractions
1 Multiplying fractions 67
2 Multiplying fractions and whole
numbers / mixed numbers 67
3 Cancelling 67
4 Sketching strategy for problem
solving68
5 Dividing fractions 69
6–7 Multiplying and dividing fractions
practice69
Unit 12: Percent, ratio and proportion
1 Writing percents 71
2–3 Percents and decimals 71
4–5 Percent, decimals, fractions 72
6 Finding a percent of an amount 72
7 Changing fractions to percents 73
8 Practice 73
9 Discount 74
10 Discount problem solving 75
11 Wages and salaries problem
solving75
12 Simple interest problem solving 76
13 Ratio 76
14 Simplifying ratios 76
15 Proportion 77
16 Ratio problem solving 78
17 Practical use of proportion 78
18 Working with scale 79
19 Ratio/percent/fraction problem
solving80
20 Mixed problem solving 81
Unit 13: Measurement: time
1–2 Units of time 82
3 Enrichment: 24-hour clock 83
4 Elapsed time 83
5 Calculating time 83
6 Practising elapsed time 84
7 Practice 84
Unit 14: Data, statistics and probability
1 Finding the mean 85
2 Working with the total 85
3 Bar graphs 86
4 Circle graphs / interpreting data 87
5 Probability 88
6 Venn diagrams 89
Review 190
Review 291
Review 392
Review 493
Review 594
Review 695
Review 796
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Unit 1: Number
1 Place value (Use with 1.1 A)
Write the following as number words.
1 40 _____________________________________________________________
2 7000 _____________________________________________________________
3 300000 _____________________________________________________________
4 800 _____________________________________________________________
5 200000 _____________________________________________________________
6 50000 _____________________________________________________________
7 2700 _____________________________________________________________
8 59000 _____________________________________________________________
9 260000 _____________________________________________________________
10 1000000 _____________________________________________________________
2 Place value (Use with 1.1 B)
Write the place value of the underlined digit.
1 64 _____________________________________________________________
2 240 _____________________________________________________________
3 2380 _____________________________________________________________
4 3400 _____________________________________________________________
5 27408 _____________________________________________________________
6 720 _____________________________________________________________
7 31005 _____________________________________________________________
8 73963 _____________________________________________________________
9 335008 _____________________________________________________________
10 907030 _____________________________________________________________
Unit 1: Number 5
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3 Place value (Use with 1.1 C)
Fill in the missing numbers.
1 234 ___ hundreds ___ tens ___ ones
2 2068 ___ thousands ___ hundreds ___ tens ___ ones
3 3704 ___ thousands ___ hundreds ___ tens ___ ones
4 55421 ___ ten thousands ___ thousands ___ hundreds ___ tens ___ ones
5 6470 ___ thousands ___ hundreds ___ tens ___ ones
6 27308 ___ ten thousands ___ thousands ___ hundreds ___ tens ___ ones
7 1810 ___ thousands ___ hundreds ___ tens ___ ones
8 6654 ___ thousands ___ hundreds ___ tens ___ ones
9 90740 ___ ten thousands ___ thousands ___ hundreds ___ tens ___ ones
10 62875 ___ ten thousands ___ thousands ___ hundreds ___ tens ___ ones
Challenge
Write the place value of each digit.
a 2 567 300 __________________________________________________________
b
2 004 560 220 __________________________________________________________
4 Place value (Use with 1.1 D)
Write the following using numerals.
1 sixty-three ______________
2 seven hundred and four ______________
3 two thousand, two hundred ______________
4 four thousand, nine hundred and twenty ______________
5 fourteen thousand ______________
6 six hundred and thirteen ______________
7 one thousand and ten ______________
8 eighty-five thousand ______________
9 thirty-five thousand, nine hundred and ninety-two ______________
6
10 seven hundred and eighty-six thousand, one hundred and two ______________
Unit 1: Number
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Challenge
a What whole number comes after 111111? ______________
b What whole number comes before 1000000? ______________
c What whole number comes before 2000000? ______________
5 Value (Use with 1.2 A)
Write the value of the underlined digit.
1 623 ______________
2 4070 ______________
3 310 ______________
4 1004 ______________
5 14500 ______________
6 2940 ______________
7 24720 ______________
8 15300 ______________
9 6941 ______________
10 68005 ______________
6 Value (Use after 1.2 A)
Write the value of the underlined digit.
1 342 ______________
2 7500 ______________
3 58002 ______________
4 600325 ______________
5 33330 ______________
6 335000 ______________
7 56920 ______________
8 224800 ______________
9 56500 ______________
10 990427 ______________
7 Value (Use with 1.2 B)
Write the value of each digit.
Example 7032 = 7000 + 30 + 2
1 264 = _____________________________________________________________
2 32 = _____________________________________________________________
Unit 1: Number 7
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3 9044 = _____________________________________________________________
4 290 = _____________________________________________________________
5 71423 = _____________________________________________________________
6 9070 = _____________________________________________________________
7 324 = _____________________________________________________________
8 92958 = _____________________________________________________________
9 750361 = _____________________________________________________________
10 206603 = _____________________________________________________________
8 Expanded form (Use with 1.3 A)
Write the following in expanded form.
1 1628 = _____________________________________________________________
2 89754 = _____________________________________________________________
3 468 = _____________________________________________________________
4 31890 = _____________________________________________________________
5 44320 = _____________________________________________________________
6 3650 = _____________________________________________________________
7 40760 = _____________________________________________________________
8 52004 = _____________________________________________________________
9 29660 = _____________________________________________________________
10 70074 = _____________________________________________________________
Challenge
Write the number.
a 4000000 + 40000 + 400 + 4 = ______________
b 2000000000 + 20000000 + 200000 + 2000 + 20 = ______________
8
Unit 1: Number
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9 Expanded form (Use with 1.3 B)
Change these numbers from expanded form to standard form.
1 2000 + 300 + 10 + 8 = ___________
2 400 + 70 + 9 = ___________
3 6000 + 200 + 90 + 3 = ___________
4 40000 + 1000 + 500 + 6 = ___________
5 30000 + 9000 + 40 = ___________
6 60000 + 300 = ___________
7 7000 + 500 + 80 = ___________
8 200 + 3 = ___________
9 5000 + 60 = ___________
10 90000 + 7000 + 20 = ___________
10 Expanded numbers with regrouping (Use with 1.3 C)
Fill in the missing numbers to make each expanded form correct.
1 675 = _______ hundreds + 7 tens + 5 ones
2 572 = _______ hundreds + 17 tens + 2 ones
3 984 = 9 hundreds + 7 tens + _______ ones
4 3328 = 3 thousands + _______ hundreds + 12 tens + 8 ones
5 97002 = 9 ten thousands + 6 thousands + _______ hundreds + 2 ones
6 5249 = _______ thousands + 12 hundreds + 4 tens + 9 ones
7 7553 = 7 thousands + 5 hundreds + _______ tens + 3 ones
8 14709 = 1 ten thousand + 4 thousands + _______ ones
9 46500 = _______ thousands + 5 hundreds
10 305290 = _______ ten thousands + 5 thousands + 2 hundreds + 9 ones
11 Expanded numbers with regrouping (Use with 1.3 D)
Write the number.
1 300 + 40 + 50000 + 8000 = ______________
2 9 + 20000 + 600 = ______________
3 40 + 9000 + 6 = ______________
4 10000 + 200 + 3 + 6000 + 10 = ______________
5 7000 + 6 + 200 + 50 = ______________
Unit 1: Number 9
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12 More expanded numbers with regrouping (Use with 1.4 A and 1.4 B)
Write the standard form. (Hint: In questions 1, 6 and 9, underline each group of
numbers between the plus signs to make them easier.)
1 5 × 10 000 + 1 × 1000 + 4 × 100 = ______________
2 60 000 + 400 = ______________
3 (5 × 10 000) + (7 × 100) + (3 × 10) + (9 × 1) = ______________
4 40 000 + 1 = ______________
5 (9 × 1000) + (6 × 10) = ______________
6 7 × 1000 + 8 × 10 + 4 × 1 = ______________
7 300 000 + 10 000 + 4000 + 200 + 30 = ______________
8 (7 × 10 000) + (4 × 1000) = ______________
9 2 × 100 000 + 4 × 10 000 + 6 × 10 + 5 × 1 = ______________
10 800 000 + 6000 + 500 + 20 + 5 = ______________
13 Forming numbers (Use with 1.5)
For each question, use all these four numbers. 7, 3, 6, 4
1 Make the greatest possible number. ______________
2 Make the smallest possible number. ______________
3 Make the largest odd number. ______________
4 Make the largest even number. ______________
5 Make the smallest odd number. ______________
6 Make the smallest even number. ______________
For each question, use all these four numbers. 8, 1, 2, 9
7 Make the largest odd number. ________________________
8 Make the smallest even number. ________________________
9 Make the smallest odd number. ________________________
10 Make the largest even number. ________________________
10
Unit 1: Number
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