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answers

Chapter 1. Numbers up to 20 4. (a) 24 (b) 33 (c) 41 (d) 50
Get Ready 6. (a) 19, 37, 42, 28 (b) 29, 43, 12, 21 (c) 22, 33, 50, 7
1. 1 2. 4 3. 3 4. 5 Practice Time 2B
Maths Connect 3. (a) > (b) < (c) < (d) > (e) < (f) >
1. (a) 2 (b) 2 (c) 3 (d) 4 (g) = (h) =
Practice Time 1A Life Skills
1. 2 – Two, 9 – Nine, 1 – One, 8 – Eight, 3 – Three, 6 – Six 50
Practice Time 1B Practice Time 2C
1. (a) 3 (b) 2 (c) 1 (d) 0 1. (b) 7, 16, 27, 40 (c) 23, 26, 41, 49 (d) 14, 25, 36, 43
2. (b) 10 – ten (c) 10 – ten (e) 11, 27, 45, 49 (f) 19, 22, 35, 40
Practice Time 1C 2. (b) 41, 28, 17, 8 (c) 47, 40, 36, 14 (d) 44, 37, 26, 15
(f) 43, 37, 29, 24
(e) 41, 36, 27, 23
1. (b) 12, Twelve (c) 13, Thirteen (d) 14, Fourteen (e) 15, Fifteen Chapter Assessment
(f) 16, Sixteen (g) 17, Seventeen (h) 18, Eighteen (i) 19, Nineteen
(j) 20, Twenty 1. (b) 2. (c)
Practice Time 1D 4. 34 = Thirty-four; 47 = Forty-seven; 45 = Forty-five; 26 = Twenty-six;
1. (b) 14, Fourteen (c) 13, Thirteen (d) 20, Twenty 31 = Thirty-one; 20 = Twenty; 30 = Thirty; 36 = Thirty-six;
46 = Forty-six; 42 = Forty-two; 50 = Fifty; 39 = Thirty-nine
Practice Time 1F 5. (a) 9, 14, 32 (b) 17, 38, 49 (c) 12, 37, 40
1. (a) 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17 6. (a) 50, 46, 22 (b) 46, 35, 24 (c) 39, 32, 25
(b) 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 Brain Sizzlers
(c) 6, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18 1. 49 2. 25
2. (a) 18,17, 16, 14, 13, 12, 11, 9, 8, 7, 6, 5
(b) 20, 19, 18, 16, 15, 14, 13, 11, 10, 9, 8, 7, 6 Mental Maths
(c) 16, 15, 14, 13, 11, 10, 9, 8, 7, 5, 4, 3 1. FORTY-FOUR 2. ELEVEN 3. TWENTY-TWO
Brain Sizzlers 4. TWENTY-FIVE 5. FORTY-ONE 6. FORTY-NINE
13 7. THIRTY-SEVEN 8. SIXTEEN 9. TWENTY-SIX
Practice Time 1H 10. FORTY-EIGHT
1. (a) 9 < 19 (b) 14 > 11 (c) 14 > 13 (d) 20 = 20 Chapter 3. Numbers up to 100
2. (a) > (b) < (c) = (d) < Maths Fun
(e) < (f) > (g) > (h) <
3. Smallest Greatest F I F S I X T W T H T N E H E T
(a) 4 10 I S I N I N E T E N W I I T I W
(b) 11 19 F E F T E N R T S I E N G Y G E
(c) 7 16
Practice Time 1I T V L V H O P S X N N E N T H H
1. (b) 11, 16, 17 (c) 10, 18, 19 2. (b) 19, 16, 10 (c) 20, 15, 8 Y N M U T T E W S S T H I R T Y
3. (a) 10, 11, 12, 13, 14 (b) 13, 14, 15, 16, 17 H N S T S E V E N T Y R N H Y T
(c) 15, 16, 17, 18, 19
4. (a) 17, 16, 14, 13, 12 (b) 12, 11, 10, 9, 8 (c) 14, 13, 12, 11, 10 O I F T I P Q S T A B C E I F H
Life Skills B T I W X F O U R F I D T I I R
2. Donkey 4. Cow 6. Duck F F O R T Y V E S I X H Y S F T
Brain Sizzlers
1. 2 tens S Y T O Y S E V E N T I X I T Y
Chapter Assessment Practice Time 3A
1. (b) 2. (a) 3. (a) 4. (d) 1. (b) 54 = Fifty-four (c) 57 = Fifty-seven (d) 69 = Sixty-nine
8. (a) third (b) seventh (e) 75 = Seventy-five (f) 86 = Eighty-six
Mental Maths 3. (a) 51 52 53 54 55 56 57 58 59 60
1. 1 2. 10 3. 9 (b) 61 62 63 64 65 66 67 68 69 70
Chapter 2. Numbers 21 to 50 (c) 75 76 77 78 79 80 81 82 83 84
Quick Check 4. (a) (b) (c) (d) (e)
1. 9 2. 3 3. 44; only one 100 90 80 70 60
Practice Time 2A 89 79 69 59
1. (b) 47 = 4 tens and 7 ones (c) 38 = 3 tens and 8 ones 99
(d) 21 = 2 tens and 1 one (e) 24 = 2 tens and 4 ones 98 88 78 68 58
(f) 40 = 4 tens and 0 ones 97 87 77 67 57
3. Number names Numbers Number names Numbers 96 86 76 66 56
Twenty-three 23 Twenty-six 26 95 85 75 65 55
Forty-two 42 Forty 40 94 84 74 64 54
Thirty 30 Forty-five 45 83 73 63 53
Twenty-nine 29 Thirty-two 32 93
Forty-seven 47 Forty-four 44 92 82 72 62 52
Thirty-six 36 Twenty-two 22 91 81 71 61 51

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