Question

123 x 45 - 41 x 135 tính nhanh

Answer 1

123 x 45 - 41 x 135=

=123 x 45 - 41 x 3 x 45

=123 x 45 - 123 x 45

=0

Answer 2

123 x 45 - 41 x 135

= 123 x 45 - 41 x 3 x 45

= 45 x ( 123 - 41 x 3)

= 45 x ( 123 - 123)

=0

 

Answer 3

123 x 45 - 41 x 135 

= 123 x 45 - 41 x 3 x 45

= 45 x ( 123 - 41 x 3 )

= 45 x ( 123 - 123 )

= 45 x 0

= 0

Answer 4

123\(\times45-41\times135\)

=\(123\times45-41\times3\times45\)

=123\(\times45-123\times45\)

=0