2.34*7.2+23.4*0.28简便计算?
1个回答
2022-09-24
展开全部
简便计算过程如下
2.34×7.2+23.4×0.28
=2.34×7.2+2.34×10×0.28
=2.34×7.2+2.34×2.8
=2.34×(7.2+2.8)
=2.34×10
=23.4
望采纳
2.34×7.2+23.4×0.28
=2.34×7.2+2.34×10×0.28
=2.34×7.2+2.34×2.8
=2.34×(7.2+2.8)
=2.34×10
=23.4
望采纳
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