12 |
5 |
5 |
6 |
3 |
4 |
4 |
5 |
2 |
15 |
3 |
4 |
2 |
15 |
1 |
2 |
1 |
3 |
2 |
3 |
1 |
4 |
2 |
4 |
3 |
4 |
1 |
5 |
2 |
5 |
3 |
5 |
4 |
5 |
1 |
1000 |
2 |
1000 |
999 |
1000 |
7 |
12 |
9 |
20 |
11 |
30 |
13 |
42 |
15 |
56 |
1 |
6 |
1 |
24 |
3 |
79 |
12 |
5 |
5 |
6 |
3 |
4 |
n-1 |
2 |
12 |
5 |
5 |
6 |
3 |
4 |
4 |
5 |
12 |
5 |
5 |
6 |
3 |
4 |
12 |
5 |
4 |
5 |
9 |
5 |
4 |
5 |
9 |
5 |
4 |
5 |
3 |
5 |
3 |
5 |
2 |
15 |
3 |
4 |
2 |
15 |
2 |
15 |
53 |
60 |
2 |
15 |
60 |
53 |
8 |
53 |
1 |
2 |
1 |
3 |
2 |
3 |
1 |
4 |
2 |
4 |
3 |
4 |
1 |
5 |
2 |
5 |
3 |
5 |
4 |
5 |
1 |
1000 |
2 |
1000 |
999 |
1000 |
1 |
2 |
1+2 |
3 |
1+2+3 |
4 |
1+2+3+4 |
5 |
1+2+…+999 |
1000 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
7 |
12 |
9 |
20 |
11 |
30 |
13 |
42 |
15 |
56 |
1 |
6 |
1 |
24 |
1 |
3 |
1 |
4 |
1 |
4 |
1 |
5 |
1 |
5 |
1 |
6 |
1 |
6 |
1 |
7 |
1 |
7 |
1 |
8 |
19 |
6 |
38 |
5 |
1 |
3 |
1 |
8 |
19 |
6 |
5 |
38 |
11 |
24 |
5 |
12 |
1 |
24 |
3 |
79 |
3 |
79 |
3 |
79 |
76 |
79 |
科目:小学数学 来源: 题型:
6 |
5 |
2 |
7 |
4 |
5 |
5 |
7 |
8 |
9 |
5 |
4 |
3 |
16 |
3 |
4 |
3 |
7 |
3 |
8 |
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科目:小学数学 来源: 题型:
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科目:小学数学 来源: 题型:
计算下面各题,能简算的要简算. (1)(
|
(2)
|
(3)
| ||||||||||||||||||
(4)2.5×97×0.4 | (5)1.25×97×8 | (6)1.25×32×2.5×97 | ||||||||||||||||||
(7)0.36×101 | (8)0.36×98 | (9)
| ||||||||||||||||||
(10)
|
(11)
|
(12)
| ||||||||||||||||||
(13)90×
|
(14)86×
|
(15)
| ||||||||||||||||||
(16)0.36×101-0.36 | (17)0.36×99+0.36 | (18)
|
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