5.24-0.38+0.58简便算

问题描述:

5.24-0.38+0.58简便算

5.24-0.38+0.58=5.24+(0.58-0.38)=5.24+0.2=5.44

先算后面的,变成5.24+0.2,就很容易得出答案为5.44

5.24-0.38+0.58
=5.24+(0.58-0.38)
=5.24+0.2
=5.44

先后两数相加=0.2,再+5.24=5.44