99999乘77778+33333乘66666简便计算,奥数题,求解!谢谢!我立刻采纳

2024-11-05 22:35:17
推荐回答(2个)
回答(1):

99999*77778+33333*66666
=99999*77778+33333*3*22222
=99999*77778+99999*22222
=99999*(77778+22222)
=99999*100000
=9999900000

回答(2):