Question

Tính bằng cách thuận tiện nhất:

752 x 89 - 752 x 9 + 752 x 20

=

=

Answer 1

 752x89-752x9+752x20

=752x(89-9+20)

=752x100

=75200

Answer 2

752 x 89 - 752 x 9 + 752 x 20

= 752 x ( 89 - 9 + 20 )

= 752 x ( 80 + 20 )

= 752 x 100

= 75200

Answer 3

752x89-752x9+752x20

=752x(89-9+20)

=752x100

=75200