简便计算 999*7778+3333*6666 (425*5775+4225*425)/125/8
问题描述:
简便计算 999*7778+3333*6666 (425*5775+4225*425)/125/8
答
9999*7778+3333*6666
=9999*7778+9999*2222
=9999(7778+2222)
=9999*10000
=99990000
(425*5775+4225*425)/125/8
=425*(5775+4225)/(125*8)
=425*1000/1000
=425