Question

【题目】999×778+333×666

Answer 1

【答案】999000

【解析】认真观察可知，666是333的倍数，若将333×666转化为333×3×222=999×222，就可根据乘法分配律求出结果。

解：999×778+333×666

=999×778+333×3×222

=999×778+999×222

=（778+222）×999

=1000×999

=999000