Question

tinh nhanh 125 nhan 3 cong 125 nhan 2 cong 125 nhan 3 cong 125 cong 1

 

Answer 1

=1125

Answer 2

bang mot ngan mot tram hai muoi lam

Answer 3

  125 x 3 + 125 x 2 + 125 x 3 + 125 x 1

= 125 x ( 3 + 2 + 3 + 1 )

= 125 x ( 5 + 3 + 1 )

= 125 x ( 8 + 1 )

= 125 x 9 

 = 1125

Answer 4

ban co the giai thich ro hon khong

Answer 5

125 * 3 +125 * 2 + 125 * 3 + 125 + 1

= 125 *  (3 + 2 +3 +125 + 1)

= 125 * 134

= 16750

dấu * là dấu nhân