Page 245 - ICSE Math 5

9. Forty-six lakh forty-eight thousand six hundred 27. (a) (b) (c)
eighty-eight
10. 450 11. 13,574 12. 17 13. 3 14. 36
15. product 16. one 17. not defi ned 18. 2
19
19. like 20. 21. tenths 22. –5, –4 and –3 28. (a) 24 cm (b) 22 cm (c) 16 cm
25
23. –3 24. –10 25. Right 26. ray 29. 70 m 30. 28 cm
31. (a) 5.002 km (b) 3.777 L (c) 8.628 g
27. Refl ec on 28. triangle 29. 30 m
1 32. 631 kL 299 L 33. 14.242 km 34. 14 h
30. perimeter 31. kilogram 32. (0.001)
1000 35. 383 min
33. 100 34. hours : minutes : seconds 35. 60 36. (a) 9 h 26 min (b) 14 h 58 min (c) ` 1,410.77
2
36. divide 37. 86 38. 56.2 39. 1 19 57 7
3 37. (a) (b) (c)
25 100 25
40. bar graph 41. circle chart 42. line segments
38. (a) 25% (b) 15% (c) 4%
43. square numbers 44. triangular numbers
39. (a) 765 cm (b) 1,687.5 L (c) 0.78 km
45.
40. (a) March (b) January (c) 450 phones
41. (a) Kiwi (b) 16 students (c) 8 students
C. 1. 90,00,020
42. (a) 9 a.m.–10 a.m. (b) 8 a.m.–9 a.m.
2. (a) 67,80,386 (b) 49,92,457 (c) 16,90,39,27,246
(c) 1,400 (d) 1 p.m.–2 p.m.
3. Smallest: 1,02,56,789; Largest: 9,87,65,210
4. (a) 700 (b) 296 (c) 426 43. (a) (b)
5. (a) CCIV (b) CCCXII (c) LI 6. (b), (c) and (f)
44. (a) 65, 78, 91 (b) 1,377, 4,131, 12,393
7. 66,450; sixty-six thousand four hundred fi y
45. (a) 64, 81 (b) 100, 121
8. 55,566 9. 3,32,217 10. (i) 20 (ii) 110
D. 1. (a) 78,36,20,136; Seventy-eight crore thirty-six
11. 9,46,800 kg 12. (a) 91.5 (b) 205
lakh twenty thousand one hundred thirty-six
13. 72, 74, 75, 76, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87,
88, 90 783,620,136; Seven hundred eighty-three
million six hundred twenty thousand one
14. No 15. 9,999; 3 × 3 × 11 × 101
hundred thirty-six
7 5 17 7
16. (a) (b) 18 17. (a) (b) (c) (b) 40,32,02,174; Forty crore thirty-two lakh two
5 21 8 19
1 1 2 thousand one hundred seventy-four
18. (a) (b) (c)
21 6 7 403,202,174; Four hundred three million two
8 4 9 3 hundred two thousand one hundred seventy-
19. (a) + (b) 4 + 70 + +
10 100 10 100 four
4 6 4
(c) 3 + + + 2. (a) 60,00,00,000 + 7,00,00,000 + 90,00,000 +
10 100 1000
70,000 + 6,000 + 100 + 20 + 3
20. (a) 1.0900, 8.9040, 4.5680, 8,700
(b) 10,00,00,000 + 9,00,00,000 + 80,00,000 +
(b) 67.8900, 5.6000, 3.8902, 4.7800
2,00,000 + 40,000 + 3,000 + 900 + 20 + 6
21. (a) 0.75 < 0.68 < 3.56 (b) 35.2 < 6.78 < 0.72
3. 4,87,59,160; 4,87,59,200; 4,87,59,000
(c) 23.5 < 5.78 < 3.56
4. (a) CMLIX (b) LV (c) CXC
22. (a) –2 (b) 5 (c) –10
5. X < C < CX < DC < CM; CM > DC > CX > C > X
23. (a) –4 (b) –4 (c) 0
24. –10, –9, –8, –7, –6, –5, –4, –3, –2, –1, 0 6. (a) DI < 500 (b) XL = 40 (c) LXXIV < 75
25. (a) (b)
(d) XCV = 95 (e) MD < 1600
(f) XCVIII < 132
(c)
7. (a) 66,43,567 pens (b) 1,34,32,812 pens
8. Actual sum: 8,60,699; Es mated sum: 8,60,000
9. (a) TL L TTh Th H T O
26. (a) (b) (c)
7 8 2 3 6 4 4
– 2 4 1 0 1 2 3
5 4 1 3 5 2 1

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