简算7777×9+1111×37
问题描述:
简算7777×9+1111×37
答
=1111*7*9+1111*37[把7777*9分解而来]
=1111*63+1111*37[7*9为63]
=1111*[63+37] [乘法分配率反用]
=1111*100[63+37为100]
=111100 [结果]