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answers

Chapter 1. Numbers up to 9999 3. Greatest number Smallest number
Let's Recall (a) 7,741 1,147
1.
(b) 5,532 2,235
(c) 6,610 1,006
2. Nine hundred ninety-eight 3. 7 hundreds and 6 tens (d) 3,332 2,223
4. (a) 1 ten (b) 1 hundred (c) 100 (d) 100 (e) 99 (e) 9,990 9,000
Practice Time 1A Practice Time 1E
1. (a) 1455 (b) 2033 (c) 3214 (d) 6480
1. Predecessor Number Successor
2. 5551 5552 5553 5554 5555 5556 5557 5558 5559 5560
5,671 5,672 5,673
5561 5562 5563 5564 5565 5566 5567 5568 5569 5570
8,790 8,791 8,792
5571 5572 5573 5574 5575 5576 5577 5578 5579 5580
998 999 1,000
5581 5582 5583 5584 5585 5586 5587 5588 5589 5590
4,039 4,040 4,041
5591 5592 5593 5594 5595 5596 5597 5598 5599 6000
4,989 4,990 4,991
3. (a) One thousand three hundred fifty-eight
(b) Two thousand six hundred forty-three 2. Odd numbers = 2371, 8903, 3925, 8143, 9465, 2047, 9999.
(c) Seven thousand five Even numbers = 4628, 7132, 6000, 3784, 5828, 1116, 1358, 1000
(d) Nine thousand seven hundred 3. (a) 404, 406, 408 (b) 1024, 1026, 1028 (c) 2450, 2452, 2454
4. (a) 2,168 (b) 4,099 (c) 6,411 (d) 5,600 4. (a) 113, 115, 117 (b) 1033, 1035, 1037 (c) 4445, 4447, 4449
5. (a) 5057 (b) 4102 (c) 3676 Practice Time 1F
Practice Time 1B 1. (a) 50, 60 (b) 70, 80 (c) 40, 50 (d) 80, 90 (e) 100, 110
1. (a) 6 3 2 9 (b) 1 5 0 8 (c) 4 9 8 0 2. (a) 20 (b) 40 (c) 90 (d) 30 (e) 50
(h) 60
(i) 80
(j) 80
(g) 40
(f) 50
9 8 0 3. 76, 77, 78, 79
20 0 80 4. 101, 102, 103, 104
300 500 900 Chapter Assessment
6000 1000 4000 1.
2. (a) Face Value: 3, Place Value: 30 (b) Face Value: 8, Place Value: 800 (a) (iv) (b) (iii) (c) (iv) (d) (i) (e) (iii)
(f) (ii) (g) (ii)
(c) Face Value: 9, Place Value: 9000 2. (a) 4016 (b) 2039 (c) 2000 (d) 3021
3. (a) 300, 5 (b) 5000, 80 (c) 4, 2 (d) 4, 0, 5 (e) 9998 (f) 8,054 (g) 7,740
4. (a) 3000 + 900 + 10 + 4 (b) 4000 + 500 + 90 3. (a) One thousand two hundred thirteen
(b) Eight thousand nine hundred twenty-five
(c) 2000 + 600 + 5 (d) 7000 + 2 (c) Eight thousand eight hundred eighty-eight
5. (a) 4,832 (b) 7,504 (c) 5,617 (d) 9,063 (d) Two thousand twenty-three
Practice Time 1C 4. (a) 8,538 (b) 9,800 (c) 70
5.
(a) 600
(b) 8000
1. (a) 524 < 2193 (b) 7329 > 3279 (c) 8028 < 8208 6. (a) > (b) > (c) <
(d) 2613 < 2631 (e) 9162 > 9126 (f) 9325 = 9325 7. (a) Ascending order = 5008 < 5080 < 5088 < 5800
2. (a) Smallest number: 2513, Largest number: 7346 Descending order = 5800 > 5088 > 5080 > 5008
(b) Smallest number: 2015, Largest number: 7116 (b) Ascending order = 7071 < 7107 < 7170 < 7701
Descending order = 7701 > 7170 > 7107 > 7071

(c) Smallest number: 5039, Largest number: 8611 8. 0
(d) Smallest number: 5001, Largest number: 5101 9. (a) 259, 89 (b) 619, 19 (c) 8561, 3572
3. (a) 6873 > 6738 > 6387 > 6378 (b) 8132 > 7093 > 3506 > 239 10. 7304
(c) 3548 > 3458 > 1320 > 1023 (d) 6985 > 6895 > 6598 > 6589 Brain Sizzlers
1,844
4. (a) 5146 < 5346 < 5446 < 5846 (b) 857 < 8275 < 8725 < 9814 Mental Maths
(c) 9037 < 9073 < 9307 < 9703 (d) 267 < 967 < 2679 < 9672 1. 5555 2. 7086 3. 54
Practice Time 1D 4. 6482 5. 3111 ; 3113 ; 3115 ; 3117; 3119
1. (a) 4,852 (b) 9,106 Chapter 2. Addition
2. Greatest number Smallest number Let's Recall
(a) 9,731 1,379 1. (a) 128 (b) 917 (c) 485 (d) 339
2. 541
(b) 9,842 2,489
Practice Time 2A
(c) 7,510 1,057
1. (a) 559 (b) 598 (c) 686 (d) 745
(d) 9,774 4,779 2. (a) 779 (b) 799 (c) 797 (d) 789
(e) 6,320 2,036 (e) 687 (f) 897

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