Question

5.78➖0.48➕1.22➖0.52的简便运算？

Answer 1

你好，这道题的简便运算是利用加法交换律和结合律。原式=(5.78+1.22)-(0.48+0.52)=7-1=6。

Answer 2

用交换律结合律进行简算
5.78-0.48+1.22-0.52
=5.78+1.22-(0.48+0.52)
=7-1
=6