Question

123x666+369x778简便计算

Answer 1

=123*666+123*3*778
=123*（666+2334）=123*3000
=369000

Answer 2

123×666+369×778
=369×222+369×778
=369×（222+778）
=369×1000
=369000

Answer 3

123+369的和x666x778

Answer 4

＝123(666+3×778)＝369000

Answer 5

等我下