Question

Hãy tính thuận tiện phép tính sau:

4x25x10x40x25=?

Answer 1

4x25x10x40x25

=(4x25)x(40x25)x10

=100x1000x10

=1000000

Answer 2

4 x 25 x 10 x 40 x 25

= 4 x 25 x 10 x 4 x 10x 25

= 4 x 25 x 10 x 10 x 4 x 25

= 100x 100x 100

= 1000000

Answer 3

4 x 25 x 10 x 40 x 25

= ( 4 x 25 ) x ( 40 x 25 ) x 10

= 100 x 1000 x 10

= 1000000