3.5×2.4+0.25×65的简便运算
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3.5×2.4+0.25×65=3.5×2.4+2.5×6.5=3.5×2.4+2.5×(3.5+3)=3.5x2.4+2.5x3.5+2.5x3
咨询记录 · 回答于2022-09-22
3.5×2.4+0.25×65的简便运算
3.5×2.4+0.25×65=3.5×2.4+2.5×6.5=3.5×2.4+2.5×(3.5+3)=3.5x2.4+2.5x3.5+2.5x3
3.5×2.4+0.25×65=3.5x2x1.2十2.5X3+2.5x3.5=7x1.2十7.5+8.75=8.4+7.5+8.75=24.65