Page 183 - Math Skill - 4

Answers 181

Exercise 2.7
1. (a) 588 (b) 4568 (c) 22623 (d) 17953 2. 27678 3. 44828 people 4. ` 65715

Exercise 2.8
1. (a) 120 (b) 50 (c) 800 (d) 580 (e) 150 (f) 820 2. (a) 600 (b) 400 (c) 5600 (d) 1100
(e) 49400 (f) 18200 3. (a) 45000 (b) 76000 (c) 17000 (d) 17000 (e) 7000 (f) 18000

Assessment Time
A. 1. (a) 2. (c) 3. (b) 4. (c) 5. (c) B. 1. 0 2. 106000 3. 915 4. 89635 5. one
C. 1. (a) 96,512 people travelled by motor bike 2. Train; 8,57,200 people more 3. 14,97,000

Chapter 3: Multiplication and Division
Boot-up : 240
Exercise 3.1
1. (a) 43622 (b) 559116 (c) 159168 (d) 471482 (e) 307536 (f) 625414 2. (a) 86676 (b) 48564 (c) 55664
(d) 1170801 (e) 450912 (f) 2805156 3. 247618 4. 1320168 5. (a) 4788 (b) 1904 (c) 260652 (d) 104580
Exercise 3.2

1. (a) 1 (b) 930 (c) 0 (d) 32 (e) 0 (f) 0 2. (a) 930 (b) 87400 (c) 6830 (d) 150700 (e) 934000 (f) 473000
(g) 190 (h) 34700 (i) 3967000 3. (a) 630 (b) 1580 (c) 499200 (d) 39600 (e) 18600 (f) 19200
4. (a) 670 (b) 37800 (c) 278000
Exercise 3.3
1. (a) 2000 (b) 4800 (c) 4000 2. (a) 30000 (b) 180000 (c) 60000

Exercise 3.4
1. (a) Q = 190, R = 8 (b) Q = 246, R = 7 (c) Q = 338, R = 15 (d) Q = 264, R = 12 (e) Q = 243, R = 9
(f) Q = 120, R = 23 (g) Q = 209, R = 72 (h) Q = 336, R = 7 (i) Q = 556, R = 1 (j) Q = 10357, R = 1
(k) Q = 8892, R = 7 (l) Q = 1193, R = 24 (m) Q = 2376, R = 24 (n) Q = 2516, R = 5 (o) Q = 324, R = 13
2. Q = 145, R = 25 3. 120 4. 13247 5. 3680
Exercise 3.5
1. (a) 689 (b) 0 (c) 1 (d) 1 (e) 0 (f) 1008 (g) 1 (h) 1 (i) 1
2. (a) Q = 34, R = 5 (b) Q = 324, R = 7 (c) Q = 684, R = 3 (d) Q = 9847, R = 3 (e) Q = 2, R = 34 (f) Q = 17, R = 38
(g) Q = 239, R = 84 (h) Q = 6847, R = 85 (i) Q = 6, R = 378 (j) Q = 12, R = 478 (k) Q = 238, R = 948 (l) Q = 764, R = 125

Exercise 3.6
1. 428 2. ` 74,725 3. 138 4. ` 135 5. 523 6. 372 7. 10220 days 8. 507 9. ` 89,000 10. 34200 copies
11. 4125 flats 12. 18000 sheets, 200 students
Assessment Time
A. 1. (b) 2. (a) 3. (a) 4. (c) 5. (b) 6. (a) 7. (b) 8. (a) 9. (c) 10. (a) 11. (b)
B. 1. 1 2. multiplier 3. 0 4. 1000 5. Divisor 6. 43200 7. 34000 C. 1. 34270 2. 850080 3. 489846
Assessment-1
1. (c) 2. (c) 3. (a) 4. (a) 5. (b) 6. (a) 7. (b) 8. (c) 9. 100000 10. 14357 11. 0 12. 5 13. 0 14. (c) 15. (a)
16. (a) L TTh Th H T O → Face Place (b) L TTh Th H T O → Face Place
5 0 8 9 2 7 value value 8 4 0 0 7 3 value value
7 7 3 3
2 20 7 70
9 900 0 0
8 8000 0 0
0 0 4 40000
5 500000 8 800000
17. 23006 > 2309