Page 133 - Fun with Mathematics 2

b c
0 1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20 0 1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20
5 × 3 = 15 5 × 4 = 20
3. a 6 b 20 c 35 d 18 e 28 f 48 g 36 h 60 i 33 j 84 k 104 l 126 4. a 4, 28 b 5, 35 c 9, 72 d 7, 63 e 6, 54 f 0, 0 g 4, 32
h 15, 3, 45 i 11, 4, 44 j 13, 9, 117 5. a 2 b 0 c 0 d 9 e 0 f 8 g 10 h 0 i 0 j 0 k 14 l 0 6. a 92 b 52 c 75 d 86

e 108 f 588 g 553 h 504 7. a 24 b 63 c 96 d 170 8. a 248 b 639 c 844 d 555 e 792 f 1428 g 2496 h 1278 9. a 426
b 945 c 492 d 1130 10. a 4628 b 3915 c 9256 d 6325 e 8616 f 8953 g 8544 h 7767 i 8420 j 9468 k 5890 l 7536
m 8712 n 8169 o 9324 p 9072 q 7384 r 9234 s 6545 t 8088 u 9828 v 9864 w 7266 x 9888 11. a 50 b 70 c 90
d 110 e 150 f 390 g 990 h 1790 i 5780 j 9560 k 140 l 2460 m 6240 n 6150 o 8340 p 8260 q 9040 r 9990
12. a 300 b 600 c 3300 d 4800 e 6000 f 9000 g 600 h 3200 i 2000 j 6500 k 4800 l 3900 m 5400 n 8400 o 7200

p 9900 13. a 162 rows b 168 hours c 350 tins d 504 runs e 980 apples f 525 cars g 2816 pages h 5264 trees
i 925 erasers j 1536 plants k 4240 chocolates

LET US REVISE: 1. a (v) b (iv) c (i) d (ii) e (iii) 2. a < b > c < d = 3. a 3, 30, 300 b 10, 100, 1000, c 12, 120, 1200
d 2304 e 2776 f 5383 4. 450 children 5. 500 seats 6. a (ii) b (i) c (iii)

Chapter 5. divisioN

1. b 5 c 24 ÷ 6 = 4

2. a b
0 1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20 0 1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20
10 ÷ 2 = 5 16 ÷ 4 = 4

c d
0 1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20 0 1 2 3 4 5 6 7 8 9 10 11 12 13 1 4 15 16 17 18 19 20
18 ÷ 3 = 6 20 ÷ 5 = 4
3. a 4 b 4 c 5 d 6 e 8 f 3 g 8 h 8 i 9 j 7 k 9 l 8 m 9 n 6 o 6 p 4 q 8 r 9 s 5 t 9 4. a 5 b 8 c 7 d 24 e 15 f 43 g 28

h 13 i 12 j 34; R = 1 k 25; R = 1l 14; R = 3 5. a 289 b 245 c 265 d 113 e 193 f 135 g 83 h 54 i 89 j 67; R = 1
k 78; R = 3 l 34; R = 3 6. a 1465 b 826 c 4789 d 1185 e 535 f 664 g 981; R = 2 h 369; R = 2 i 1344; R = 1 j 944;
R = 2 k 448; R = 5 l 458; R = 11 7. a 11 b 23 c 21 d 14 e 322; R = 1 f 121; R = 2 g 111; R = 3 h 113 8. a 42 b 0
c 60 d 0 e 0 f 26 g 0 h 0 9. a 6 b 20; R = 5 c 65; R = 2 d 16 e 49; R = 5 f 9 g 30 h 7 i 38; R = 6 j 48; R = 7
10. a 103 b 207; R = 3 c 206; R = 3 d 108 e 106 f 107 11. a 24 pieces b 161 pens c ` 120 d 127 students

e 48 days

LET US REVISE: 1. a > b < c < d > 2. a 9 + 9 + 9 + 9 b 8 + 8 + 8 + 8 + 8 c 9 + 9 + 9 + 9 + 9 + 9 + 9
3. a ÷ b ÷ c × d ÷ 4. a 136; R= 2 b 145 c 92; R = 4 d 36; R = 7 5. a 921; R = 5 b 779; R = 1 c 724; R = 1 d 1161;
R = 1 6. 57 clocks 7. b 8. c 9. a

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