1
12 – 7 = □
想:
7 加( )得 12
5
5
2
11 - 7 = □
想:
7 加( )得 11
4
4
15 - 7 = □
怎样想?
7 加( )得 15
8
8
14 - 7 = □
7
16 - 7 = □
9
13 - 7 = □
6
3
想一想
做一做
1.
12 - 7 =
2.
4
14 - 7 =
7 + 5 =
7 + 7 =
12
14
7
15 - 7 =
7 + 8 =
15
8
7 + □= 11
7 + □= 13
7 + □= 16
11 – 7 = □
14 – 7 = □
16 - 7 = □
4
4
6
6
9
9
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