Page 179 - NUMINO TB_2B

2B ˙ · (2–‡) 2011.3.226:50PM ˘ ` 168

b . 4 3 12, 12 apples Unit 19. Hiding Ants

123456789 P. 20~21
4 4 8 12 16 20 24 28 32 36

c . 4 7 28, 28 walnuts

123456789
4 4 8 12 16 20 24 28 32 36

d . 3 6 18, 18 marbles

123456789
3 3 6 9 12 15 18 21 24 27

Activity 3 P. 18~19

1 . START If each ant has 6 legs. Count the groups of legs
you circled. So, there are 4 ants.
73 21 2 3 5 17 25 5

12 16 4 9 54 24 8 4

7 6 36 18 8 72 64

20 19 39 15 64 18 24

23 24 45 8 24 64 8

64 8 50 64 28 12 30

24 8 64 24 8 64 24

FINISH

2.

8 ^ 6 52 9 ^ 8 42 6 ^ 7 16 2 ^ 8 15 3 ^ 6

24 72 34 40 27

4 ^ 2 18 6 ^ 8 16 4 ^ 9 26 8 ^ 5 14 7 ^ 2

23 48 32 33 45 Activity 1 P. 22~23

5 ^ 6 31 3 ^ 9 40 5 ^ 8 14 4 ^ 3 12 5 ^ 9 1 . a . 2, 2 b . 12, 4, 3, 3
25 27 24 21 24

6 ^ 9 28 7 ^ 4 21 4^635 3 ^ 7 42 8 ^ 6 c . 10, 5, 2, 2 d . 14, 7, 2, 2

54 42 33 30 44 2. b.

5 ^ 7 27 4 ^ 4 16 8 ^ 4 32 6 ^ 9 18 3 ^ 8 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

35 36 48 54 24 10, 5, 2

8 ^ 3 24 4 ^ 9 29 3 ^ 9 24 8 ^ 7 36 6 ^ 6

34 20 17 56 26

7 ^ 7 49 5 ^ 4 15 7 ^ 1 17 9 ^ 9 81

168