Question

3.57✘38.3+350.225+35.7✘3.92用简便方法怎样算？

Answer 1

3.57×38.3+350.225+35.7×3.92
=(3.57×38.3+35.7×3.92)+350.225
【前两项提取35.7】
=35.7×(3.83+3.92)+350.225
=35.7×7.75+350.225
=(5.1×7)×7.75+350.225
=5.1×54.25+350.225
=(5+0.1)×54.25+350.225
=271.25+5.425+350.225
=271.25+355.65
=626.9

Answer 2

3.57乘以38.3+3.57乘以39.2+350.225=3.57乘以77.5+350.225=626.9，谢谢

Answer 3

最前面的运算方法，首先是将他们合并同类项，可以将35点7×3点九二变成三点57×39点二，然后进行合并同类项

Answer 4

3.57*(38.3+39.2)+350.225

Answer 5

要用简便算法，算的话应该先用38.3，加上39.2