Question

tính nhanh 

123x6+123x1+123x3+123x50+123x40 = ?

Answer 1

123x6+123x1+123x3+123x50+123x40 = 123x(6+1+3+50+40)=123x100=12300

Answer 2

123x(6+1+3+50+40)

123x100=12300

Đúng thì cho mik nhé

Answer 3

123 * 6 + 123 * 1 + 123 * 3 + 123 * 50 + 123 * 40 

= 123 * ( 6 + 1 + 3 + 50 + 40 )

=123 * 100

= 12300