口算。
7 8 3 4 |
3 4 |
12.5×8= | 0.32= | 2- 2 3 |
1 3 1 8 |
5 6 × 3 10 |
4 5 ÷ 6 7 |
2- 5 7 2 7 |
5 6 5 9 5 9 1 6 |
2 3 1 5 2 3 1 5 |
20%+5%= | 1 3 1 3 1 3 1 3 |
5 6 2 3 5 6 |
( 1 4 1 5 5 3 |
4 5 5 6 3 5 |
3.7×0.1%= | 1717÷17= | 0.125÷ 1 8 |
2 3 1 2 |
【考点】四则运算的巧算.
【答案】,0.5,100,0.09,1,,,,1,,,0.25,,,,,0.0037,101,0.64,1。
13
8
1
3
5
24
1
4
14
15
5
9
2
5
1
9
3
2
1
12
8
5
【解答】
【点评】
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发布:2024/6/6 8:0:9组卷:28引用:1难度:0.8