Page 131 - Fun with Mathematics 2

Chapter 1. Numbers
1. a 76 b 612 c 92 d 769 e 151 f 781 g 270 h 898 i 308 j 805 k 460 l 950 m 502 n 999 2. a Forty-five
b One hundred eight c Two hundred four d Four hundred nineteen e Six hundred thirty-seven f Seven

hundred ninety-five g Eight hundred ninety-one h Nine hundred sixty 3. a 44 b 99 c 208 d 430 e 658
f 779 g 875 h 62 i 73 j 110 k 354 l 469 m 591 n 999 o 49 p 97 q 210 r 322 s 568 t 789 u 811 4. a 6, 6 b 8, 80
c 1, 100 d 4, 40 e 5, 5 f 5, 500 g 9, 90 h 0, 0 i 5, 50 j 5, 5 k 2, 20 l 8, 800 m 1, 1 n 9, 900 5. b 4, 4 c 8, 3 d 1, 3, 5
e 2, 1, 5 f 4, 4, 7 g 8, 2, 6 h 9, 5, 8 6. b 60 + 8 c 100 + 50 + 0 d 200 + 50 + 4 e 300 + 70 + 8 f 400 + 0 + 9 g 400 +
80 + 2 h 500 + 70 + 8 i 600 + 30 + 4 j 600 + 80 + 1 k 700 + 20 + 3 l 700 + 80 + 6 m 800 + 20 + 5 n 800 + 60 + 7
o 900 + 20 + 0 p 900 + 70 + 5 7. a > b < c < d > e = f > g > h > i < j < k > l = m = n > o > 8. a 45, 65, 78
b 72, 92, 102 c 121, 211, 212 d 305, 350, 356 e 524, 538, 576 f 690, 670, 610 g 900, 800, 700 h 715, 710, 705

i 876, 856, 836 j 980, 918, 908 9. a Do yourself 10. a One thousand two hundred fifty-six b Two thousand
three hundred nine c Five thousand five hundred sixty-one d Six thousand seven hundred thirty-four
e Seven thousand eight hundred forty-two 11. a 1564 b 3812 c 5070 d 6206 e 8352 f 9009 12. a Two
thousand five hundred sixty-seven b Three thousand eight hundred ninety-five c Four thousand two
hundred nine d Six thousand five hundred e Seven thousand eight f Nine thousand three hundred
sixteen 13. a 2532 b 4316 c 6054 d 9561

14. a Th H T O b Th H T O c Th H T O d Th H T O

15. b 4, 0, 300, 2000 c 0, 30, 900, 8000 d 5, 40, 0, 5000 e 5, 90, 100, 6000 f 4, 40, 400, 4000 g 6, 50, 200, 8000
h 8, 90, 700, 9000 i 6, 70, 800, 9000 16. a 2, 2 b 5, 500 c 5, 50 d 4, 4000 e 8, 80 f 4, 4 g 1, 100 h 8, 8000 i 9, 90
j 8, 800 17. b 4 thousands + 6 hundreds + 1 ten + 8 ones c 5 thousands + 1 hundred + 4 tens + 9 ones
d 7 thousands + 9 hundreds + 6 tens + 1 one e 9 thousands + 4 hundreds + 8 tens + 5 ones
18. b 3000 + 500 + 10 + 6 c 5000 + 900 + 30 + 4 d 6000 + 300 + 80 + 9 e 8000 + 0 + 50 + 1 19. a 1354 b 3964

c 5803 d 6109 e 7600 f 8416 g 9007 h 2351 i 3450 j 4628 k 5067 l 6900 m 7963 n 8006 o 9504 20. a < b < c <
d > e < f > g < h > i < j < 21. a 1000 b 2205 c 3000 d 456 e 5139 f 5436 g 6602 h 7035 i 8362 j 9505 22. a 1573
b 6000 c 2858 d 3780 e 4900 f 5762 g 6500 h 8927 i 8872 j 9980 23. a 1512, 1531, 1542, 1588 b 364, 3485,
4284, 4463 c 5490, 5680, 5690, 5780 d 7200, 7640, 7780, 7870 e 3000, 4000, 5000, 7000 24. a 2874, 2784, 2487,
2480 b 4870, 4780, 4680, 4280 c 6330, 6300, 6030, 6003 d 8836, 8643, 8463, 8346 e 9982, 9782, 9682, 9282
25. a 2678, 2680 b 3198, 3200 c 3999, 4001 d 5199, 5201 e 6871, 6873 26. a odd b even c odd d even e odd
f even 27. 2850, 3652, 6876, 5374, 8466, 9728 28. 1503, 4575, 1609, 8465, 3107, 5969, 9935 29. a 2044, 2046,
2048, 2050, 2052 b 3520, 3522, 3524, 3526, 3528 c 4298, 4300, 4302, 4304, 4306 d 6002, 6004, 6006, 6008,

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