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Answers

Chapter 1: Spatial Relationship Exercise 2E
1. a. 3, 7, 8, 14, 16, 20 b. 5, 9, 10, 17 c. 0, 6, 7, 11, 12, 18, 19
Warm up
1. inside 2. big 3. bottom 4. above 2. a. 7 b. 11 c. 17 d. 14
Exercise 1A 3. a. 10 b. 16 c. 13 d. 18
1. a. on b. under 2. a. over b. under 4. a. 6 b. 11 c. 16 d. 15
3. a. down b. up 4. a. top b. bottom Exercise 2F
5. a. inside b. outside 6. a. above b. below 1. a. 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17 b. 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19
7. a. before b. after 8. a. right b. left c. 6, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18
2. a. 18, 17, 16, 14, 13, 12, 11, 9, 8, 7, 6, 5 b. 19, 18, 16, 15, 14, 13, 11, 10, 9, 8, 7
Learning Log c. 15, 14, 13, 12, 10, 9, 8, 7, 6, 5, 3, 2
1. 2. 3. 4. Exercise 2G
5. 6. 7. 8.
1. a. 10 6 b. 7 5 c. 6 4
Chapter 2: Numbers up to 20   
Warm Up
2. c. 3 5 d. 9 7 c. 6 10
  
Exercise 2H

1. 7 13 15 17
11 16
Exercise 2A
1. Four Five Six
4 5 6 2. 8 18
20 10
15 10
3. 15 > 13 17 < 20 16 = 16 11 < 14

7 Seven 8 Eight 9 Nine 19 < 20 15 > 9 14 > 12 15 < 17
Exercise 2I
1. a. 8 10 4 b. 11 15 19 c. 7 10 16

2 a. 14 9 16 b. 12 10 18 c. 13 14 11
2. 4 Ö Four, 9 Ö Nine, 5 Ö Five, 8 Ö Eight, 7 Ö Seven, 6 Ö Six
Exercise 2B 3. a. 10, 11, 12, 13, 14 b. 13, 14, 15, 16, 17 c. 15, 16, 17, 18, 19
1. 4. a. 17, 16, 14, 13, 12 b. 12, 11, 10, 9, 8 c. 14, 13, 12, 11, 10
Exercise 2J
3 2 1 0
2. 3. Tens Ones Tens Ones 1.
1 2 1 0
Twelve Ten
Exercise 2C 2.
1. b. 17 c. 15 Learning Logs
1. a. 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19
2. Ten Ones Number Number Name b. 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16
a. 1 2 12 Twelve 2. a. 18, Eighteen b. 14, Fourteen c. 16, Sixteen
b. 1 6 16 Sixteen 3. Ten Ones Number
c. 1 3 13 Thirteen a. 1 4 14
d. 1 9 19 Nineteen b. 1 9 19
e. 2 0 20 Twenty
4. a. 18 (3) b. 14 (3) c. 17 (3) d. 20 (3)
3. b. 12 c. 10 d. 17 5. a. 10 (3) b. 7 (3) c. 8 (3) d. 5 (3)
Exercise 2D
1. b. 14 c. 13 d. 20 6. a. 13 10 15 b. 16 17 14 c. 8 4 12
2. a. b. c. d. 7.
Increasing Order 3, 5, 8, 10 9, 13, 17, 18
Decreasing Order 10, 8, 5, 3 18, 17, 13, 9

8.
T O T O T O T O

190 Mathematics 1