1.2×25+2.5×27+25简便计算
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1.2×25+2.5×27+25简便计算
=1.2×25+25×2.7+25×1
=(1.2+2.7+1)×25
=4.9×25
=(4+0.9)×25
=4×25+0.9×25
=100+22.5
=122.5
咨询记录 · 回答于2022-04-08
1.2×25+2.5×27+25简便计算
你好,亲亲
1.2×25+2.5×27+25简便计算
1.2×25+2.5×27+25简便计算=1.2×25+25×2.7+25×1=(1.2+2.7+1)×25=4.9×25=(4+0.9)×25=4×25+0.9×25=100+22.5=122.5
这个题目主要考查的是乘法分配率的灵活运用哦