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Answers

Chapter 1. Numbers up to 9999 2. Odd numbers = 2371, 8903, 3925, 8143, 9465, 2047, 9999.
Let's Recall: 3. Even numbers = 4628, 7132, 6000, 3784, 5828, 1116, 1358, 1000
(b) 1024, 1026, 1028
(a) 404, 406, 408
(c) 2450, 2452, 2454
1. 4. (a) 113, 115, 117 (b) 1033, 1035, 1037 (c) 4445, 4447, 4449
Practice Time 1F
1. (a) 50, 60 (b) 70, 80 (c) 40, 50 (d) 80, 90 (e) 100, 110
2. Nine hundred ninety-eight 3. 7 hundreds and 6 tens 2. (a) 20 (b) 40 (c) 90 (d) 30 (e) 50
4. (a) 1 ten (b) 1 hundred (c) 100 (d) 100 (e) 99 (f) 50 (g) 40 (h) 60 (i) 80 (j) 80
Practice Time 1A 3. 79, 81, 82, 83 (Answer may vary)
1. (a) 1455 (b) 2033 (c) 3214 (d) 6480 4. 99, 98, 97, 101(Answer may vary)
2. (a) 5057 (b) 4102 (c) 3676 Practice Time 1G
4. (a) One thousand three hundred fifty-eight 1. (a) XVI (b) XXV (c) XXXIX (d) XXVII
(b) Two thousand six hundred forty-three 2. (a) 18 (b) 29 (c) 37 (d) 34
(c) Seven thousand five 3. (a) XXVI (b) XXXI (c) XIX (d) IX (e) XIV
(d) Nine thousand seven hundred Chapter Assessment
5. (a) 2,168 (b) 4,099 (c) 6,411 (d) 5,600 1. (a) (iv) (b) (iii) (c) (iv) (d) (i) (e) (iii)
Practice Time 1B (f) (ii) (g) (ii)
1. (a) 6 3 2 9 (b) 1 5 0 8 (c) 4 9 8 0 2. (a) 4016 (b) 2039 (c) 2000 (d) 3021
9 8 0 (e) 9998 (f) 8,054 (g) 140
20 0 80 3. (a) One thousand two hundred thirteen
300 500 900 (b) Eight thousand nine hundred twenty-five
6000 1000 4000 (c) Eight thousand eight hundred eighty-eight
2. (a) Face Value: 3, Place Value: 30 (b) Face Value: 8, Place Value: 800 (d) Two thousand twenty-three
(c) Face Value: 9, Place Value: 9000 4. (a) 8,538 (b) 9,800
3. (a) 300, 5 (b) 5000, 80 (c) 4, 2 (d) 4, 0, 5 5. (a) 600 (b) 8000 (c) 70
4. (a) 3000 + 900 + 10 + 4 (b) 4000 + 500 + 90 6. (a) > (b) > (c) <
7.
(c) 2000 + 600 + 5 (d) 7000 + 2 (a) Ascending order = 5008 < 5080 < 5088 < 5800
Descending order = 5800 > 5088 > 5080 > 5008
5. (a) 4,832 (b) 7,504 (c) 5,617 (d) 9,063 (b) Ascending order = 7071 < 7107 < 7170 < 7701
Practice Time 1C Descending order = 7701 > 7170 > 7107 > 7071
1. (a) 524 < 2193 (b) 7329 > 3279 (c) 8028 < 8208 8. 0
(d) 2613 < 2631 (e) 9162 > 9126 (f) 9325 = 9325 9. (a) 259, 89 (b) 619, 19 (c) 8561, 3572
2. (a) Smallest number: 2513, Largest number: 7346 10. 7304
(b) Smallest number: 2015, Largest number: 7116 11. Predecessor Number Successor
(c) Smallest number: 5039, Largest number: 8611
(d) Smallest number: 5001, Largest number: 5101 (a) XXIII XXIV XXV
3. (a) 6873 > 6738 > 6387 > 6378 (b) 8132 > 7093 > 3506 > 239 (b) XXXVI XXXVII XXXVIII
(c) 3548 > 3458 > 1320 > 1023 (d) 6985 > 6895 > 6598 > 6589 (c) IX X XI
4. (a) 5146 < 5346 < 5446 < 5846 (b) 857 < 8275 < 8725 < 9814
(c) 9037 < 9073 < 9307 < 9703 (d) 267 < 967 < 2679 < 9672 (d) XIV XV XVI
Practice Time 1D Brain Sizzlers
1. Greatest number Smallest number 1,844
(a) 9,731 1,379 Mental Maths
1. 5555 2. 7086 3. 54
(b) 9,842 2,489
4. 6482 5. 3111 ; 3113 ; 3115 ; 3117; 3119
(c) 7,510 1,057 Chapter 2. Addition
(d) 9,774 4,779
Let's Recall
(e) 6,320 2,036 1. (a) 128 (b) 917 (c) 485 (d) 339
2. (a) 4,852 (b) 9,106 2. 541
Practice Time 1E Practice Time 2A
1. (a) 559 (b) 598 (c) 686 (d) 745
1. Predecessor Number Successor 2. (a) 779 (b) 799 (c) 797 (d) 789
5,671 5,672 5,673 (e) 687 (f) 897
Think and Answer
8,790 8,791 8,792
182
998 999 1,000
94 88
4,039 4,040 4,041 46 48 40
4,989 4,990 4,991 20 26 22 18

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