0.3x2.5+3x0.75
2022-10-28
展开全部
简便计算过程如下
0.3×2.5+3×0.75
=3×0.1×2.5+3×0.75
=3×0.25+3×0.75
=3×(0.25+0.75)
=3×1
=3
望采纳
0.3×2.5+3×0.75
=3×0.1×2.5+3×0.75
=3×0.25+3×0.75
=3×(0.25+0.75)
=3×1
=3
望采纳
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