4.26 *5.8+57.4*0.58 的简便运算
问题描述:
4.26 *5.8+57.4*0.58 的简便运算
答
4.26 *5.8+57.4*0.58
=4.26*5.8+5.74*5.8
=(4.26+5.74)*5.8
=10*5.8
=58