Page 30 - Genius PBD - Mathematics Year 3

ANSWERS

The letters obtained is T
UNIT 1 Numbers up to 10 000 9. (a) 1 326

(b) 7 458
1. (a) • • (c) 9 035
(b) • • 10. (a) 6 thousands + 2 hundreds + 3 tens + 5 ones
(c) • • (b) 4 thousands + 8 hundreds + 1 tens + 7 ones
(d) • • (c) 2 thousands; 1 hundreds; 6 tens; 9 ones
(e) • • (d) 7 thousands; 5 hundreds; 0 tens; 3 ones
2. (a) two thousand seven hundred and thirty-five ✓ 11. (a) 5 000 + 200 + 90 + 3
(b) four thousand two hundred and three ✓ (b) 9 000 + 600 + 10 + 4
(c) seven thousand and eighteen ✓ (c) 7 000; 100; 20; 3
(d) six thousand and two ✓ (d) 8 000; 200; 6
12. (a) Ali
3. (a) (b)
2 5 6 1 (b) The number given by Ana is 2 455, that is
greater than 2 420, while the number given by
1 Ira is 2 405, that is smaller than 2 410.
3 13. G → E → F
14. (a) 4 200, 4 194, 4 188, 4 182
(c) (d)
4 7 1 2 (b) 6 810, 6 910, 7 010, 7 110
(c) 9 096, 9 105, 9 114, 9 123
5
(d) 7 032, 6 032, 5 032, 4 032
(e) (f)
8 0 4 7 15. (a) 3 644, 3 646, 3 648
(b) 4 765; 4 750, 4 745
0 0 (c) 5 960, 5 970; 6 000
(d) 6 220; 6 020, 5 920
0
16. (a) more or less
9 (b) more than
(c) less than
4. (a) two thousand one hundred and forty-seven
(b) four thousand eight hundred and fifteen 17. (a) 7 930; 3 680; 2 050; 5 790
(c) six thousand and ninety (b) 1 800; 9 500; 4 700; 6 600
(d) three thousand and one (c) 3 000; 8 000; 4 000; 10 000
(e) seven thousand five hundred and two 18. (a) Any number from 2 750 till 2 849 is acceptable.
5. (a) 2 719; 3 578; 4 902 (b) 6 236; 4 504; 8 173 (b) Any number from 2 500 till 3 499 is acceptable.
6. 19. (a) (b)
• • •
(c) (d)
• • • 20. (a) 1 242, 1 248 ; increasing in sixes
(b) 4 890, 4 889 ; decreasing in ones
7. (a) ones; 2 (c) 5 035, 4 035 ; decreasing in thousands
(b) tens; 80 21. (a) Haikal
(c) hundreds; 400 (b) 1 223 marbles
(d) thousands; 5 000 (c) 7 boxes E, 5 boxes F, 9 boxes G and 3 extra
8. 2 328 3 419 1 565 9 324 7 334 1 032 9 365 pieces of colour paper
1 365 3 896 4 286 3 706 1 425 3 783 6 243 [Any other correct answers can be accepted.]
2 112 4 325 8 224 5 673 2 125 5 960 7 990
7 327 6 320 8 567 9 240 3 033 9 459 3 782
4 459 5 675 8 093 7 231 6 782 2 137 2 563
5 670 1 230 2 812 3 244 5 237 4 028 1 239

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