Question

1 tính nhanh

5 x 217 x 20 - 4 x 215 x 25

tính đúng mình tích cho

Answer 1

5 x 217 x 20 - 4 x 215 x 25

= ( 5 x 20 ) x 217 - ( 4 x 25 ) x 215

= 100 x 217 - 100 x 215

= 100 x ( 217 - 215 )

= 100 x 2

= 200

Answer 2

5 x 217 x 20-4 x 215 x 25

=(5 x 20) x 217-(4 x 25) x 215

=100 x 217-100 x 215

=100 x (217-215)

=100 x 2

=200

Answer 3

5 x 217 x 20 - 4 x 215 x 25

= 100 x 217 - 100 x 215

= 100 x (217 - 215)

= 100 x 2

= 200

Answer 4

5x217x20-4x215x25

=100x217-100x215

=100x(217-215)

=100x2

=200 bn nào k mk mk k lại!!!!!!

Answer 5

5x217x20-4x215x25

=(5x20)x217-(4x25)x215

=100x217-100x215

=100x(217-215)

=100x2

=200   

k nha

Answer 6

5 x 217 x 20 - 4 x 215 x 25 

= ( 5 x 20 ) x 217 - ( 4 x 25 ) x 215 

=     100 x 217 - 100 x 215

= 100 x ( 217 - 215 )

= 100 x 2

= 200

Answer 7

5x217x20-4x215x25

=(5x20)x217-(4x25)x215

=100x217-100x215

=21700-21500

=200.

Answer 8

 = ( 5 x 20 ) x 217 - (4 x 25 ) x 215

= 100 x 217 - 100 x 215

= 100 x (217 - 215)

=100 x 2

= 200

Answer 9

5 x 217 x 20 - 4 x 215 x 25

= 5 x 20 x 217 - 4 x 25 x 215

= 100 x 217 - 100 x 215

= 100 x ( 217 - 215 )

= 100 x 2

= 200