简便方法计算. 64
|
|
3.5×1
| ||||||||||||||||||||||
1998÷1998
|
|
|
1 |
17 |
1 |
9 |
18 |
17 |
1 |
9 |
1 |
6 |
5 |
6 |
5 |
6 |
5 |
6 |
1 |
4 |
7 |
10 |
4 |
5 |
4 |
5 |
5 |
4 |
1998 |
1999 |
1 |
17 |
4 |
9 |
5 |
17 |
1 |
9 |
1 |
17 |
4 |
9 |
1 |
17 |
5 |
9 |
1 |
7 |
3 |
4 |
3 |
7 |
1 |
6 |
6 |
7 |
1 |
12 |
1 |
7 |
3 |
4 |
1 |
7 |
3 |
6 |
1 |
7 |
6 |
12 |
1 |
17 |
1 |
9 |
18 |
17 |
1 |
9 |
1 |
9 |
18 |
17 |
1 |
9 |
2 |
17 |
2 |
17 |
1 |
6 |
5 |
6 |
5 |
6 |
5 |
6 |
5 |
6 |
5 |
6 |
1 |
4 |
7 |
10 |
4 |
5 |
1 |
4 |
5 |
4 |
1998 |
1999 |
1998×1999+1998 |
1999 |
1998×(1999+1) |
1999 |
1998×2000 |
1999 |
1999 |
1998×2000 |
1999 |
2000 |
1 |
17 |
4 |
9 |
5 |
17 |
1 |
9 |
1 |
17 |
4 |
9 |
1 |
17 |
5 |
9 |
1 |
17 |
4 |
9 |
5 |
9 |
1 |
17 |
1 |
17 |
1 |
7 |
3 |
4 |
3 |
7 |
1 |
6 |
6 |
7 |
1 |
12 |
1 |
7 |
3 |
4 |
1 |
7 |
3 |
6 |
1 |
7 |
6 |
12 |
1 |
7 |
3 |
4 |
1 |
2 |
1 |
2 |
1 |
7 |
7 |
4 |
1 |
4 |
科目:小学数学 来源: 题型:
2 |
3 |
1 |
6 |
2 |
17 |
4 |
17 |
2 |
5 |
11 |
17 |
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