摘要:÷ 8.1 [29.7-×4]÷ 0.3
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下面各算式正确吗?正确的在括号里画“√”,错误的改正在横线上.
(1)3.8×1.5=0.57 ( )
(2)1.3×1.09=14.17 ( )
(3)0.66×0.5=0.33 ( )
(4)3.05×0.12=0.0366 ( )
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(1)3.8×1.5=0.57 ( )
3.8×1.5=5.7
3.8×1.5=5.7
(2)1.3×1.09=14.17 ( )
1.3×1.09=1.417
1.3×1.09=1.417
(3)0.66×0.5=0.33 ( )
正确
正确
(4)3.05×0.12=0.0366 ( )
3.05×0.12=0.366
3.05×0.12=0.366
.| 1125-997= | 998+1246+9989= | (8700+870+87)÷87= | 125×8.8= |
| 1.3+4.25+3.7+3.75= | 17.15-(3.5-2.85)= | 3.4×99+3.4= | 4.8×1.01= |
| 0.4×(2.5÷73)= | (1.6+1.6+1.6+1.6)×25 | ( | |
| 12.3-2.45-5.7-4.55= | 0.125×0.25×64= | 64.2×87+0.642×1300= | |
| 78×36+7.8×741-7 | 2.42÷ | ||
| 25÷100 | 4.25-3 | 3.8÷3.9+3.9÷0.1+0.1÷3.9= | 12.1-( |