怎么算999.9乘36加666.6乘96的简便算法过程
问题描述:
怎么算999.9乘36加666.6乘96的简便算法过程
答
999.9×36+666.6×98
=999.9×36+666.6×1.5÷1.5×96
=999.9×36+999.9×64
=999.9×(36+64)
=999.9×100
=99990
答
把96分解成1.5×64,在用乘法结合律变出相同的数999.9,最后用乘法分配律算出积!!!
999.9×36+666.6×96
=999.9×36+(666.6×1.5)×64
=999.9×36+999.9×64
=999.9×(36+64)
=99990
答
999.9乘36加666.6乘96
=(333.3乘3)乘36加(333.3乘2)乘96
=333.3乘108加333.3乘192
=333.3乘(108+192)
=333.3乘300
=99990