题目内容
脱式计算,能简便的要简便
| 57.6÷1.8×0.2 | 2.7×201 | 10.85+0.56÷0.28. |
| (1)57.6÷1.8×0.2, =32×0.2, |
(2)2.7×201,
=2.7×(200+1),
=2.7×200+2.7,
=540+2.7,
=542.7;
(3)10.85+0.56÷0.28,
=10.85+2,
=12.85.
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