Page 218 - Start Up Mathematics_5

Chapter 2: Four Operations (d) TC C TL L TTh Th H T O

Let’s Recall 6 5 0 7 0 8 5 1 3
1. (a) 4,48,981 (b) 14,32,134 (c) 36,84,173
+ 2 9 9 8 5 7 4 8 9
2. (a) 2,08,503 (b) 1,71,614 (c) 76,58,274
9 5 0 5 6 6 0 0 2
3. ` 7,00,125
3. Students to do on their own.
4. (a) 87,696 (b) 1,44,144 (c) 9,05,612
(d) 30,33,888 Exercise 2.2
5. (a) Q = 28, R = 24 (b) Q = 353, R = 7 1. (a) 3,22,24,311 (b) 11,11,33,331 (c) 36,24,638
(d) 4,32,25,813 (e) 2,00,22,516 (f) 75,72,976
(c) Q = 2,607, R = 16 (d) Q = 420, R = 1
(g) 40,90,01,217 (h) 21,75,54,862
6. (a) L TTh Th H T O 2. 82,31,786

4 6 7 2 9 3 TL L TTh Th H T O
3. (a)
2 8 5 4 2 6 7 8 4 3 6 2 4
+ 1 1 9 2 3 4 – 3 2 1 0 2 1 3

8 7 1 9 5 3 4 6 3 3 4 1 1

L TTh Th H T O TC C TL L TTh Th H T O
(b) (b)
3 5 4 3 7 0 8 5 7 2 4 6 1 3 9
– 1 8 2 7 5 6 – 4 1 3 0 2 4 1 1 5
1 7 1 6 1 4 4 4 4 2 2 2 0 2 4

7. ` 86,550 TL L TTh Th H T O
(c)
Exercise 2.1 5 9 8 6 3 4 2
1. (a) 26,27,81,731 (b) 25,39,78,040 (c) 56,91,69,035 – 3 7 5 2 1 4 0
(d) 71,00,26,761 (e) 17,47,12,437 (f) 99,07,98,117 2 2 3 4 2 0 2
(g) 2,95,42,470
C TL L TTh Th H T O
2. (a) C TL L TTh Th H T O (d)
6 9 5 4 6 7 9 3
5 3 7 6 8 1 0 4
– 1 5 2 3 0 4 5 2
+ 2 7 8 0 5 7 2 6
5 4 3 1 6 3 4 1
8 1 5 7 3 8 3 0

Exercise 2.3
(b) TL L TTh Th H T O
1. 5,23,03,639 2. 11,45,96,125 3. 3,24,224
2 3 7 0 0 4 8
4. 28,62,91,898 5. 12,44,73,891 6. 10,09,99,999
+ 4 9 8 7 6 9 3
7. 22,93,809 8. 99,89,99,999 9. 1,02,35,678
7 3 5 7 7 4 1 10. 87,43,21,100 11. 7,86,08,511 12. ` 9,38,160

(c) TC C TL L TTh Th H T O Exercise 2.4
1. (a) 832 (b) 1,215 (c) 5,136 (d) 4,403
9 3 7 0 1 5 4 6
(e) 23,526 (f) 38,855 (g) 882 (h) 2,924
+ 1 4 6 9 9 8 9 7 6
(i) 9,750 (j) 1,634 (k) 3,276 (l) 1,31,440
2 4 0 7 0 0 5 2 2
2. (a) 40,43,640 (b) 19,38,39,558 (c) 47,54,41,512

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