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2. a. 272, 230, 211, 98, 47 b. 239, 218, 205, 152, 44 Exercise 2D
c. 298, 280, 260, 245, 241 d. 265, 200, 195, 183, 141 1. a. 2 tens + 7 ones b. 4 tens + 8 ones c. 6 tens + 0 ones
e. 298, 250, 241, 187, 136
d. 7 tens + 5 ones e. 9 tens + 9 ones f. 4 tens + 7 ones
Exercise 1G
1. b. 10 toffees, even c. 9 roses, odd 2. a. 1 ten + 6 ones b. 2 tens + 8 ones c. 4 tens + 4 ones
d. 8 apples, even d. 5 tens + 7 ones e. 7 tens + 0 ones f. 8 tens + 1 one
2. 14, 16, 18, 20, 22, 24, 26, 28, 30 3. a. 6; 5, 1, 6; 6, 6 b. 20; 4, 2, 5; 6, 5 c. 9, 7
3. 29, 31, 33, 35, 37, 39, 41, 43, 45 d. 7, 5 e. 6, 5
4. a. 32, 34, 36, 38 b. 42, 44, 46, 48 Exercise 2E
5. a. 51, 53, 55, 57, 59 b. 61, 63, 65, 67, 69
Exercise 1H 1. a. T O b. T O c. T O
1. b. tenth c. second d. fourth e. lion f. elephant 1 1 1
g. goat h. tiger i. horse j. giraffe 2 1 2 3 3 4
2. a. Mercury b. Earth c. Jupiter d. Neptune + 9 + 7 + 6
3. b. 5th c. 6th d. 3rd 3 0 3 0 4 0
Learning Logs
1. a. 114 b. 125 2. a. T O b. T O c. T O d. T O
2. a. 269, 270, 271, 272, 273, 274, 276, 277, 278 1 1 1 1
b. 158, 159, 160, 161, 162, 163, 165, 166, 167 1 2 2 6 2 5 2 1
c. 192, 191, 190, 189, 187, 186, 185 + 1 8 + 1 4 + 3 5 + 3 9
3. a. 152 b. 191 c. 185 d. 220 3 0 4 0 6 0 6 0
4. a. 227 b. 212 c. 211 d. 199
5. a. 128 b. 199 c. 270 e. T O f. T O g. T O h. T O
6. a. One hundred forty-four b. One hundred ninety-eight 1 1 1 1
c. Two hundred sixty-three d. Two hundred nine 1 8 3 2 2 6 4 9
7. a. 172 b. 185 c. 298 d. 258 + 5 2 + 4 8 + 6 4 + 3 1
8. a. 80 b. 8 c. 200 7 0 8 0 9 0 8 0
9. a. 157 b. 99 c. 65 d. 250 e. 270 f. 170
10. a. 118, 132, 140, 172; 172, 140, 132, 118 3. a. 26 b. 54 c. 33 d. 45 e. 83
b. 128, 153, 164, 174; 174, 164, 153, 128 f. 91 g. 61 h. 96
c. 213, 217, 222, 240; 240, 222, 217, 213 4. a. b. c. d. T O
d. 148, 238, 284, 298; 298, 284, 238, 148 T O T O T O
4 9 2 7 4 6 6 3
11. 21 22 23 24 25 26 27 28 29 30 + 9 + 8 + 2 8 + 1 8
5 8 3 5 7 4 8 1
31 32 33 34 35 36 37 38 39 40
5. a. 13 b. 14 c. 15 d. 15
41 42 43 44 45 46 47 48 49 50
Exercise 2F
12. PEACOCK 1. 51 marbles 2. 74 marks 3. 77 seashells
Mental Math
a. 230 b. 265 c. 207 d. 229 4. a. 57 birds b. 97 birds
HOTS Exercise 2G
1. Aarav 2. 11, 22, 33, 44, 55, 66, 77, 88, 99 1. a. 110 b. 100 c. 130 d. 120
Chapter 2: Addition e. 149 f. 112 g. 164 h. 149
Warm Up 2. a. 127 b. 135 c. 109 d. 139
Team A: 33 runs, Team B: 39 runs, Team B won the match. e. 136 f. 138 g. 168 h. 159
Exercise 2A
3. a. 121 b. 121 c. 132 d. 187
1. a. 0 b. 48 c. 1 d. 1 e. 84 f. 80 e. 153 f. 135 g. 141 h. 130
2. a. 40 b. 50 c. 43 d. 40 e. 44 f. 49
Learning Logs
Exercise 2B 1. a. 34 b. 86 c. 40 d. 58 e. 71
1. 24 2. 24 3. 39 4. 82 5. 78 f. 14 g. 19 h. 13 i. 19 j. 16
6. 84 7. 82 8. 89 9. 44 10. 78
Exercise 2C 2. a. 12
1. a. 57 b. 99 c. 68 d. 78 e. 77 +
f. 87 g. 69 h. 79 6
2. a. 67 beads T O b. 99 balloons T O =
3 0 5 2 10 + 8 = 18 = 9 + 9
=
1 5 1 4 15
+ 2 2 + 3 3 +
6 7 9 9 3 (Answer may vary)

189
Answers