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8 + ( )= 12
8 + ( )= 14
8 + ( )= 15
8 + ( )= 17
4
6
7
9
8 + ( ) = 13
5
8 + ( ) = 11
3
8 +( )= 16
8
十几减8
1
11 – 8 =
想:
8 加( )得 11
3
3
11 减 8 得 3
2
13 - 8 = □
想:
8 加( )得 13
5
5
15 - 8 = □
想:
8 加( )得 15
7
7
想一想,算一算
3
12 - 8 = □
想:
8 加( )得 12
4
4
16 - 8 = □
想:
8 加( )得 16
8
8
14 - 8 = □
6
17 - 8 = □
9
做一做
做一做
1.
□ ○ □ = □
□ ○ □ = □
2.
8 + 5 =
8 + 3 =
13 – 8 =
11 – 8 =
8 + 7 =
15 – 8 =
12
-
8
4
□ ○ □ = □
16
-
8
8
13
11
15
5
3
7
5
10 - 3 = □
7
14 - □ = □
4
10
-
3
6