0.79乘7.6加7.9乘0.43减0.079乘19
问题描述:
0.79乘7.6加7.9乘0.43减0.079乘19
答
455×7.6+111×19.2+43.3×76
=455×7.6+111×19.2+433×7.6
=(455+433)×7.6+111×19.2
=888*7.6+111*18.2
=8*111*7.6+111*(8*2.4)
= 111*(8*7.6+8*2.4)
=111*8*10
=8880