题目内容
口算
|
(1)0.8 ×25= |
(2)0.57 +0.43= |
|
(3)2.4 ×0.2= |
(4)0 ×4.23= |
答案:20;1;0.48;0
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口算
| 1 | 7.4-(1 | 1 | 1.25×7×8= | 12 |
| 0.25×0.4= | 4.4-3 | 4÷0.25= | 3÷10%= | 11 |
| 2×0.75= | 5÷25÷0.4= | |||
| 0.8× | (0.18+ |
口算
| 1÷0.01= | 2.4× | 456-199= | 0.25÷ |