问题:

【递等式计算:(7.5+2.5)×0.25710-18×45.4÷18+122÷85×25242.25×1.8+12.5×0.18[1-(12+13)]×36.】

更新时间:2024-04-27 21:49:10

问题描述:

史爱琴回答:

  

8
(1)(7.5+2.5)×0.25,
=10×0.25,
=2.5;
(2)710-18×4,
=710-72,
=638;
(3)5.4÷18+12,
=0.3+12,
=12.3;
(4)2÷
5

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