Page 196 - Touchpad Mathematics V1.0 C1

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Exercise 7F Exercise 8B
1. 10 2. 20 3. 30 4. 40 5. 30 6. 40 1. a. b. c. d. e.
7. 60 8. 10 9. 20 10. 20
Exercise 7G Circle rectangle Triangle Square Oval
1. a. 46 = 4 tens + 6 ones b. 76 = 7 tens + 6 ones 2. a. b.
- 32 = 3 tens + 2 ones - 55 = 5 tens + 5 ones
14 = 1 tens + 4 ones 21 = 2 tens + 1 ones
46 - 32 = 14 76 - 55 = 21 3. a. Square b. rectangle c. Circle d. Triangle e. Oval
c. 73 = 7 tens + 3 ones d. 88 = 8 tens + 8 ones Exercise 8C
- 31 = 3 tens + 1 ones - 44 = 4 tens + 4 ones
42 = 4 tens + 2 ones 44 = 4 tens + 4 ones 1. a. b. c.
73 - 31 = 42 88 - 44 = 44
2. a. 32 b. 13 c. 21 d. 32 e. 54 f. 12 2. a.
g. 33 h. 76 i. 44 j. 33
Exercise 7H
1. 21 birds 2. 13 tomatoes 3. 21 dolls 4. 26 pages 5. 42 books
T O T O T O T O T O b.
2 7 1 8 3 6 9 8 7 2
- 6 - 5 - 1 5 - 7 2 - 3 0
2 1 1 3 2 1 2 6 4 2 c.
Exercise 7I
2. Subtract, 12 toy-birds 3. Add, 69 runs
4. Subtract, 24 pens 5. Add, 98 roses
Exercise 8D
Learning Logs
1. a. 27 b. 12 c. 19 d. 51 e. 29 f. 40 1. a.
g. 10 h. 80 i. 30 j. 97 k. 59 l. 12
m. 58 n. 24 o. 99 b.
2. 32 eggs 3. 76 balls
Mental Maths c.
1. 25 + 10 = 35, 35 + 10 = 45, 45 + 10 = 55, 55 + 10 = 65,
65 + 10 = 75, 75 + 10 = 85, 85 + 10 = 95
2. 75 - 10 = 65, 65 - 10 = 55, 55 - 10 = 45, 35 - 10 = 25, d.
25 - 10 = 15, 15 - 10 = 5
HOTS
1. 21 picture cards 2. 6 e.
Fun Activity
1. 63 94 35 17 38 2. 44 19 80 44 19
l O T u S g A N g A
3. 63 55 94 80 2.
l i O N
Model Test Paper 1
1. b 2. c 3. a 4. a 5. b
6. a. b. c. Exercise 8E
1.

7. a. 23 b. 31 8. a. 29, 30, 31, 32 b. 75, 76, 77, 78 2.
9. a. 60, 59, 58, 57 b. 92, 91, 90, 89
10. a. 60 + 8 b. 80 + 6 c. 70 + 3 d. 40 + 4 11. a. > b. >
12. a. 8, 21, 55, 68, 75, 82 b. 24, 27, 55, 66, 90, 98
13. a. 60, 56, 40, 38, 28, 19 b. 95, 86, 71, 62, 59, 18 Exercise 8F
14. a. 65 b. 49 c. 73 d. 96 e. 82 f. 51
15. a. 79 b. 92 c. 53 d. 96 1. 2. 3.
16. a. 37 b. 95 c. 42 d. 87 e. 30
17. a. 48 students b. 31 4. 5.
Chapter 8: Shapes and Patterns
Warm Up Learning Logs
1. a. iii b. v c. ii d. i e. iv 1.
2. Do it yourself, = 27, = 11, = 6, = 17, = 15 Square (Straight) Triangle (Straight) Oval (Curved)

194 Mathematics 1