Question

999✖️778➕333✖️666简便方法？

Answer 1

你好，这道题的简便算法如下：
999×778+333×666
=999×778+333×3×222
=999×778+999×222
=999×(778+222)
=999×1000
=999000
望采纳。

Answer 2

Answer 3

原式=333*3*778+333*666
=333*（2334+666）
=333*3000
=999000

Answer 4

999*778+333*3*222
=999*778+999*222
=999（778+222）
=999*1000
=999000

Answer 5

简便方法如下：
999✖️778➕333✖️666
=999✖️778➕333✖️3x222
=999x(778+222)
=999x1000
=999000