5.62x61+56.2x3.9的简便运算怎么算？

56.2x3.9转换成5.62×39，
再提取共项5.62简便运算

5.62x61+56.2x3.9
=5.62×61+5.62×39
=5.62×（61+39）
=5.62×100
=562
验算见截图

这道题可以简便计算，运用四则运算法则，先先将56.2变成5.62乘以10,再乘以3.9,即5.62*39，再提取相同项5.62，再乘以61+39相加的和即可。解题思路如下：5.62*61+56.2*3.9=5.62*61+5.62*10*3.9=5.62*61+5.62*39=5.62*(61+39)=5.62*100=562 谢谢

简便计算过程如下

5.62×61+56.2×3.9

＝5.62×61+5.62×10×3.9

＝5.62×61+5.62×39

＝5.62×（61+39）

＝5.62×100

＝562

望采纳

5.62x61+56.2x3.9的简便运算
=5.62×61+5.62×10×3.9
=5.62×(61+10×3.9)
=5.62×100
=562
希望能帮到你哦

5.62×61+56.2×3.9

＝5.62×61+5.62×39

＝5.62×（61+39）

＝5.62×100

＝562