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# 二年级数学9的乘法口诀.ppt

9的乘法口诀
1.把口诀说完全。

2.口算,并说出用的是哪句口诀。
8×8= 4×6= 7×5= 6×8=
5×8= 7×7= 8×4= 8×6=
64
24
35
48
40
49
32
48

9 × 1 =
9 × 2 =
9 × 3 =
9 × 7 =
9 × 4 =
9 × 5 =
9 × 6 =
9 × 8 =
18
9
27
36
45
54
63
72

9 的乘法口诀

?
9 × 8 =
72
9 × 8 =
81
9 × 1 =
9 × 2 =
9 × 3 =
9 × 7 =
9 × 4 =
9 × 5 =
9 × 6 =
9 × 8 =
18
9
27
36
45
54
63
72

9 的乘法口诀
9×9 =
81

9 × 1 =
9 × 2 =
9 × 3 =
9 × 7 =
9 × 4 =
9 × 5 =
9 × 6 =
9 × 8 =
18
9
27
36
45
54
63
72

9 的乘法口诀
1

9

9×9 =
81

9 × 1 =
9 × 2 =
9 × 3 =
9 × 7 =
9 × 4 =
9 × 5 =
9 × 6 =
9 × 8 =
18
9
27
36
45
54
63
72

9 的乘法口诀
+ 9
+ 9
+ 9
+ 9
+ 9
+ 9
+ 9
+ 9
9×9 =
81

1

9

9 × 1 = 9
9 × 2 = 1 8
9 × 3 = 2 7
9 × 7 = 6 3
9 × 4 = 3 6
9 × 5 = 4 5
9 × 6 = 5 4
9 × 8 = 7 2
1
9
2

9 的乘法口诀
8
7
3
5
4
6
5
6
3
2
4
81
9×9 =

1
8
7
1

9

9 × 1 = 9
9 × 2 = 1 8
9 × 3 = 2 7
9 × 7 = 6 3
9 × 4 = 3 6
9 × 5 = 4 5
9 × 6 = 5 4
9 × 8 = 7 2
1
9
2

9 的乘法口诀
8
7
3
5
4
6
5
6
3
2
7
4
9×9 =
81

8
1
1

9

9 × 1 =
9 × 2 =
9 × 3 =
9 × 7 =
9 × 4 =
9 × 5 =
9 × 6 =
9 × 8 =
18
9
27
36
45
54
63
72

9 的乘法口诀
9×9 =
81

1

9

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