(2.5+16)*0.4递等式计算
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亲您好很高兴为您解答(2.5+16)×0.4=2.5×0.4+16×0.4=1+6.4=7.4
咨询记录 · 回答于2023-04-07
(2.5+16)*0.4递等式计算
亲您好很高兴为您解答(2.5+16)×0.4=2.5×0.4+16×0.4=1+6.4=7.4
这几个算式都要解答吗
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25×1.25×0.4=25×0.4×1.25=10×1.25=12.5
2.5×3.75×40=2.5×40×3.75=100×3.75=375
5.02×8.7+1.3×5.02=5.02×(8.7+1.3)=5.02×10=50.2
6.9×9.9+0.69=6.9×9.9+6.9×0.1=6.9×(9.9+0.1)=6.9×10=69