計算下面各題,注意使用簡便算法. (
| 5×
|
| ||||||||||||||||||||||
|
|
|
8 |
9 |
2 |
27 |
8 |
9 |
2 |
27 |
1 |
5 |
4 |
5 |
1 |
5 |
4 |
5 |
4 |
25 |
4 |
25 |
5 |
8 |
13 |
12 |
1 |
12 |
1 |
4 |
5 |
8 |
13 |
12 |
4 |
12 |
5 |
8 |
3 |
4 |
5 |
6 |
18 |
7 |
1 |
2 |
3 |
4 |
1 |
3 |
18 |
7 |
2 |
3 |
1 |
3 |
18 |
7 |
2 |
3 |
1 |
3 |
18 |
7 |
11 |
7 |
17 |
12 |
1 |
5 |
5 |
12 |
17 |
12 |
1 |
5 |
5 |
12 |
1 |
5 |
17 |
12 |
5 |
12 |
1 |
5 |
1 |
5 |
1 |
5 |
2 |
3 |
9 |
14 |
5 |
6 |
4 |
9 |
2 |
3 |
9 |
14 |
7 |
18 |
2 |
3 |
1 |
4 |
2 |
3 |
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