Page 207 - Math Genius C2

E:\Working\Orange_Education\Math_Genius_2\Open_Files\Answers
\ 03-Oct-2025 Bharat Arora Proof-10 Reader’s Sign _______________________ Date __________

2. (a) 6 tens + 6 ones (b) 6 tens + 5 ones (c) 9 tens + 7 ones Maths Fun (Page 59)
(d) 7 tens + 5 ones (e) 6 tens + 5 ones Rocket
Challenge Question (Page 41) Challenge Question (Page 59)
34 and 64 1. = 11, = 6 2. 1
Practice Time 2D Practice Time 3D
1. (a) 30 (b) 20 (c) 40 (d) 70 1. 25 2. 10 3. 20 4. 11 5. 24 6. 18
2. (a) 70 (b) 80 (c) 90 (d) 80 Practice Time 3E
Practice Time 2E 1. 5 + 6 = 11, 6 + 5 = 11, 11 – 5 = 6, 11 – 6 = 5

1. (a) 33 (b) 54 (c) 42 (d) 26 2. 9 + 12 = 21, 12 + 9 = 21, 21 – 9 = 12, 21 – 12 = 9
(e) 61 (f) 83 (g) 91 (h) 96 3. 17 + 21 = 38, 21 + 17 = 38, 38 – 17 = 21, 38 – 21 = 17
2. (a) 47 (b) 61 (c) 71 (d) 82 Practice Time 3F
Think Tank (Page 45) 1. (a) 5 (b) 6 (c) 6 (d) 3 (e) 6 (f) 22
1. 10 2. 14 3. 15 2. (a) 9 (b) 17 (c) 24 (d) 21 (e) 13 (f) 43
3.
(a) 8
Practice Time 2F Practice Time 3G (b) 5 (c) 4 (d) 8 (e) 7 (f) 7
1. (a) 13 (b) 14 (c) 15 (d) 15 1. 15 balls 2. 11 students 3. 19 books
2. (a) 13 (b) 17 4. Puja, 8 stamps 5. 33 DVDs 6. 9 balloons
3. (a) 11 (b) 17 (c) 14 (d) 15 Mental Maths (Page 64)
Practice Time 2G 1. 1 2. 94 3. 4 bananas 4. 87 5. 63
1. 26 2. 34 3. 92 4. 72 5. 86 6. 91 Challenge Question (Page 64)
Practice Time 2H 2. 16 3. 56
1. 51 marbles 2. 67 beads 3. 99 marks 4. 72 balloons Chapter Assessment
5. 82 seashells 6. 97 birds 1. (c) 2. (b)
Challenge Question (Page 48) 3. (a) 20 (b) 25 (c) 48 (d) 41
`561 4. (a) 24 (b) 7
Mental Maths (Page 48) 6. (a) 13 marbles (b) 3 marbles
1. 55 + 2 = 57, 75 + 2 = 77; 47 + 8 = 55, 67 + 8 = 75, 87 + 8 = 95; 49 + 9 = 58, Chapter 4. Addition and Subtraction

59 + 9 = 68, 89 + 9 = 98 GET READY!
2. 1 + 8, 3 + 6, 4 + 5 1.
53 plants
Chapter Assessment Think Tank (Page 69) 2. 42 plants 3. Ajay, 11 plants
1. (b) 2. (a) 1. 104 runs 2. No 3. 198
3. (a) 34 (b) 40 (c) 58 (d) 71 Maths Connect (Page 70)
4. (a) 87 (b) 46 (c) 82
5. 68 ribbons 6. 45 children A’s score = 53, B’s score = 42, C’s score = 34, D’s score = 52; Winner : A
Chapter 3. Subtraction Practice Time 4A
GET READY! 1. (a) 127 (b) 135 (c) 109 (d) 139
2.
(d) 135
(c) 153
(a) 121
(b) 132
1. 21, 90 2. 90, 80 3. (a) 141 (b) 176 (c) 188 (d) 191
Maths Connect (Page 53) Maths Fun (Page 71)
Going up = 4 kites, Coming down = 1 kite 1. 110 2. 145 3. 103 4. 143
Life Skills (Page 53) 5. 164 6. 157 7. 103 8. 164
9.
10. 157
185
1. 10 fingers 2. 4 limbs 3. 1 nose 4. 10 toes Practice Time 4B
5. 2 elbows 6. 2 eyes
Practice Time 3A 1. (a) 677 (b) 749 (c) 984 (d) 550
(g) 679
(f) 688
(e) 699
(h) 199
1. (a) 22 (b) 0 (c) 0 (d) 93 (e) 56 (f) 1 2. (a) 409 (b) 178 (c) 378 (d) 279
2. (a) 6 (b) 10 (c) 19 (d) 16 Practice Time 4C
Think Tank (Page 55) 1. 782 2. 873 3 629 4. 937
1. 13 2. 15 5. 730 6. 761 7. 991 8. 638
Practice Time 3B Practice Time 4D
1. (a) 2 tens + 10 ones (b) 5 tens + 1 one = 4 tens + 11 ones 1. 113 cows 2. 104 pages 3. 840 students 4. 257 trees
5.
2. (a) 3 tens (b) 10 ones (c) 4 tens 937 stamps
3. (a) 5 tens + 7 ones = 4 tens + 17 ones Challenge Question (Page 76)
(b) 6 tens + 3 ones = 5 tens + 13 ones 845 candies
(c) 4 tens + 4 ones = 3 tens + 14 ones Practice Time 4E
Challenge Question (Page 57) 1. (a) 222 (b) 200 (c) 110 (d) 204
63 2. (a) 432 (b) 733 (c) 230 (d) 800
Think Tank (Page 58) Think Tank (Page 79)
1.
1. 40 2. 44 7 2. 3
Practice Time 3C Practice Time 4F (b) 337 (c) 274 (d) 73
1.
(a) 412
1. (a) 37 (b) 26 (c) 18 (d) 35 (e) 129 (f) 174 (g) 158 (h) 266
2. (a) 35 (b) 17 (c) 22 (d) 69 2. (a) 849 (b) 89 (c) 126 (d) 149
(e) 9 (f) 34 (g) 24 (h) 48 (e) 288 (f) 148 (g) 355 (h) 293
Mathematics-2 205