Question

tính bằng 2 cách :

127 x ( 4 + 2 )

 

Answer 1

C1 : 127 x ( 4 + 2 )

= 127 x 6 

= 762

C2: 

 127 x ( 4 + 2 )

= 127 x 4 + 127 x 2 

= 508 + 254

= 762 

Answer 2

127x(4+2)=127x6=762

127x(4+2)=127x4+127x2=508+254=762

Answer 3

127 x ( 4 + 2 ) = 127 x 6 = 762

127 x ( 4 + 2 ) = 127 x 4 + 127 x 2 = 508 + 254 = 762