Page 13 - 課本_Neat

Look and Count

O n

n

N N

o n
O N

B BB C C C c c c 1 3 3 2
D DD
1 2 1 2 1 1 n 1 2 1 2 2 1 2 1
2
1
3
1
3 2 1
N = _____ n = _____ O = _____ o = _____ 4

1 1 3 1 1 2 1 1 2 2 1 1 1
2 1 2 2 2 2 3 2
3 2 1 1 3
3
2

1 2 4 1 2 3 1 1 2 1 1 2
2
2
3 2 3 O OO 1 P P P QQ Q 1
1 1 o o o 1 2 2 3 1 2

15

1
1 1 2 1 1 3
1 2 1
1 2 1 1 3 w w
2 2 2 4 w 4
2

1 2 1 2 1
2
1
1 2 3 1 2 2

3 3