文档介绍：45-5=
4X2=
21-3=
36-4=
24-6=
1 + 1 =
6X2=
3X6=
5-5=
56-7=
25-5=
6-2=
9-3=
56-9=
36-6=
72-8=
10-5=
45-5=45-5=
4X2=
21-3=
36-4=
24-6=
1 + 1 =
6X2=
3X6=
5-5=
56-7=
25-5=
6-2=
9-3=
56-9=
36-6=
72-8=
10-5=
45-5=
56-7=
24-3=
9-9=
7X2=
24-4=
16-2=
4X 5=
24-8=
49-7=
15-5=
42-6=
27-3=
14-7=
10-2=
27-9=
18-2=
8+4=
6-1 =
54-6=
9X9=
5X1 =
56-8=
15-3=
20-4=
72-9=
27-9=
36-9=
3X6=
4X9=
3X4=
3X6=
6+6=
45-5=
54-6=
42-7=
4X3=
72-9=
6X6=
7X7=
45+9=
16-8=
81-9=
12-6=
5X 1 =
30-6=
72-8=
9 + 1=
6X4=
1X6=
49-7=
2X7=
18-9=
18-6=
56-8=
9X2=
9X9=
1 X 1 =
1 X 8=
21-7=
56-7=
27-9=
42-6=
24-8=
28-7=
64+8=
5X7=
24-8=
36-6=
7X3=
24-6=
18-9=
36-4=
48-6=
35-7=
63-7=
8X3=
63-7=
4X6=
2X3=
8X5=
9-3=
5X4=
2X5=
2X8=
24-8=
10-2=
3X7=
54-6=
20-4=
49-7=
30-6=
3X8=
45 + 9=
4X8=
7X9=
3X3=
54+ 9=
9X4=
2X6=
63-7=
5X4=
6X3=
5X6=
7X6=
32-8=
3X2=
3X9=
6X2=
12+2=
8X5=
16-8=
9X6=
32 + 8=
4X9=
2+1每
23+17=
6X4=
15 + 5=
12 + 4=
9 + 9每
16+4二
4X4=
48 + 8=
5X8=
2X6=
42-6=
6X 5=
2X7=
6 + 3=
64-8=
81-9=
9X7=
8X 1 =
36+ 9=
7X4=
14+ 2=
36 + 9=
54 + 6=
30+ 6=
9+ 1 =
35+ 7=
42 + 7=
7+1 =
7X3=
7X8=
32-4=
12 + 3=
8X8=
9X9=
24-6=
9X 2=
5X9=
63 + 7=
16+ 4=
7X5=
36-6=
20 + 4=
81^=:
（共24冰7每题4分）
24-3=
9X 5=
5X7=
，8'X5=写出商是28>71法算式居l4第 1
i
35-7=
9