0.46×37+5.3×4.6的简便运算
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0.46×37+5.3×4.6=4.6×(3.7+5.3)=4.6×9=41.4
咨询记录 · 回答于2022-09-19
0.46×37+5.3×4.6的简便运算
0.46×37+5.3×4.6=4.6×(3.7+5.3)=4.6×9=41.4
亲亲您好,上述算式运用乘法分配律。0.46扩大10倍,37缩小10倍,相乘后结果不变。
0.46×37+5.2×46
4.6×3.7+52×4.6=4.6×(3.7+52)=256.22
0.46×37+5.3×46
=46×0.37+5.3×46=46×(0.37+5.3)=260.82