Page 204 - Math Skill - 5

202 Maths

2. (a) 0.6 (b) 0.24 (c) 1.25 (d) 20.15 (e) 0.504 (f) 6.625 (g) 2.45 (h) 3.08

Exercise 6.3
1. (a) 16.3 m (b) ` 16.50 (c) 80.15 mL (d) 7.055 km (e) 19.065 kg (f) 8.9 cm
2. (a) 8250 m (b) 356 m (c) 1305 m (d) 19259 m 3. (a) ` 185.75 (b) ` 0.95 (c) ` 23.90
4. (a) 65950 mL (b) 85300 mL (c) 8357 mL (d) 7350 mL

Exercise 6.4
1. (a) 15.36 < 26.36 (b) 189.44 > 189.04 (c) 899.9 > 899.09 (d) 673.5 > 67.35
2. (a) 6.500, 13.835, 175.490 (b) 12.250, 12.300, 437.587 (c) 11.1100, 11.1110, 11.1011, 11.0100
(d) 259.3000, 16.3002, 9.5200
3. (a) 0.53 > 0.40 > 0.35 > 0.32 > 0.04 (b) 28.01 > 18.32 > 1.82 > 1.28 > 0.8 (c) 3.404 > 3.4 > 3.04 > 3.004 > 0.304
4. (a) 6.32 < 23.6 < 32.6 < 62.3 < 63.2 (b) 56.666 < 56.668 < 65.565 < 87.459 < 87.954 5. (a) > (b) < (c) < (d) =

Exercise 6.5
1. (a) 21.406 (b) 10.48 (c) 31.078 2. (a) 535.92 (b) 313.6055 3. (a) 14.41 (b) 70.82 (c) 499.004

(d) 71.812 (e) 281.30 (f) 970.15 4. (a) 12.22 (b) 11.65 (c) 18.906 5. (a) 51.755 (b) 81.834
6. (a) (b)
6 . 8 5 9 9 5 . 5 3
+ 9 . 1 2 5 – 5 6 . 1 8

1 5 . 9 8 4 3 9 . 3 5

Exercise 6.6
1. (a) 164.5 (b) 23.525 (c) 39444.75 (d) 7127.25 (e) 16716.7 (f) 109.5
2. (a) 63150 (b) 2349.05 (c) 60 (d) 350
3. (a) 1 (b) 0.078 (c) 47.386 (d) 26.866 (e) 0.00648 (f) 14.71225
4. (a) 0.045567 (b) 0.569580 (c) 10.81 5. (a) 1.38 (b) 0.054168 (c) 161.20

Exercise 6.7
1. (a) 12.3 (b) 12.08 (c) 0.07508 (d) 14.0475 (e) 7.163 (f) 0.0715
2. (a) 0.8329 (b) 0.63425 (c) 0.090125 (d) 0.0008 (e) 0.264 (f) 0.47635
3. (a) 0.24 (b) 0.0058 (c) 1.178 (d) 0.075 (e) 0.545 (f) 0.0176
4. (a) 0.008 (b) 14 (c) 0.12 (d) 5.36 (e) 0.08 (f) 0.008
Exercise 6.8
1. 61.795 2. ` 16.50 3. 6.55 km 4. ` 45.48 5. 86.25 m 6. 19.6 kg 7. ` 6402 8. ` 15.95 9. 1.12 kg

Assessment Time
A. 1. (c) 2. (b) 3. (a) 4. (c) 5. (b) 6. (c) B. 1. 495 2. 6.96 3. 49.109 4. 371.124

5. 5.896 6. 599.7 C. 1. 0.55, 1.127, 1.558, 1.57, 1.573 2. 7.001, 5.127, 1.573, 1.57, 1.558, 1.127, 0.55
3. Oil 4. 0.550, 1.127, 1.558, 1.570, 1.573, 5.127, 7.001 5. 18506 D. 1 (d) 2. (c)

CHAPTER - 7: ESTIMATION

Boot-up 1. 875421; 845000 2. 12457; 12500 3. 887878; 887880