3.64*0.84+0.636*8.4简便运算
问题描述:
3.64*0.84+0.636*8.4简便运算
答
3.64*0.84+0.636*8.4
=0.364*10*0.84+0.636*8.4
=0.364*8.4+0.636*8.4
=(0.364+0.636)*8.4
=1*8.4
=8.4