Page 200 - Math Skill - 5

198 Maths

Exercise 3.2
1. (a) 41,11,041 (b) 6,13,21,143 (c) 36,75,31,342 (d) 59,19,090
2. (a) 33,87,739 (b) 7,35,359 (c) 14,19,858
3. (a) (b)
6 1 7 0 4 5 3 7 3 8 6 0 7 4

– 2 9 7 7 2 2 4 – 5 1 3 0 6 5 7
3 1 9 3 2 2 9 2 2 5 5 4 1 7

Exercise 3.3

1. 7,64,24,429 2. 6,23,77,647 3. 3,24,25,607 4. 3,39,12,257 5. 2,90,55,997 6. 1,57,95,093 7. 12,38,546
Exercise 3.4

1. (a) 25,48,546 (b) 3,91,46,922 (c) 6,07,40,768 2. (a) 50,260 (b) 7,400 (c) 2,72,04,000 (d) 2,60,80,000
3. (a) 9,88,480 (b) 3,52,800 (c) 4,97,400 (d) 2,50,40,000 (e) 5,85,44,000 (f) 2,47,92,000
4. (a) 0 (b) 1,289 (c) 7,83,526 (d) 1 (e) 0 (f) 7,35,61,600
Exercise 3.5

1. ` 12,11,600 2. 28,47,500 students 3. 99,89,001 4. ` 14,06,250
5. 18,52,500 lamps 6. 33,29,667 7. ` 1,14,11,570 8. ` 1,26,46,875

Exercise 3.6
Note: Q  Quotient; R  Remainder
1. Q  572; R  8 2. Q  1061; R  47 3. Q  1514; R  54 4. Q  3056; R  13 5. Q  7007; R  9
6. Q  1169; R  693 7. Q  3718; R  25 8. Q  162; R  249 9. Q  35967; R  85
Exercise 3.7

1. ` 985.00 2. 23001 3. 2500 4. 14340 hours 5. 842 6. 2043 7. 1269 8. 79
Exercise 3.8

1. (a) 20 (b) 522 (c) 40 (d) 173 (e) 21 (f) 100
Exercise 3.9

1. (a) 76 (b) 9 (c) 276 (d) 4 (e) 4
Assessment Time

A. 1. (c) 2. (a) 3. (c) 4. (b) 5. (b) 6. (a) 7. (a)
B. 1. 10,71,327 2. 49,73,195 3. 1,93,81,146 4. Quotient = 1123, Remainder = 229 5. 48
C. 1. 59,640 packets 2. 528 boxes D. 1. (b) 2. (c)

CHAPTER - 4: FACTORS AND MULTIPLES
Boot-up 1. 25 2. 100 3. 250 4. 10

Exercise 4.1
1. Yes, because their HCF is 1 2. (a), (c), (d) 3. (a), (b), (d) 4. (c) 5. (a), (b), (d), (e), (g), (h)
6. (a) (b) (d) 7. (a) by 8 (b) by 7 (c) by 9 (d) None