Question

tính nhanh

\(8\times2010\times125-2009\times437-2009\times563\)

Answer 1

8 x 2010 x 125 - 2009 x 437 - 2009 x 563

= ( 8 x 125 ) x 2010 - 2009 x ( 437 + 563 )

= 1000 x 2010 - 2009 x 1000

= 1000 x ( 2010 - 2009 )

= 1000 x 1

= 1000

=))

Answer 2

8 x 2010 x 125 - 2009 x 437 - 2009 x 563 = 1000

Answer 3

8 x 2010 x 125 - 2009 x 437 - 2009 x 563

(125 x 8) x 2010 - (2009 x 437 + 2009 x 563)

= 1000 x 2010 - [2009 x (437 + 563)]

= 1000 x 2010 - 2009 x 1000

= 1000 x (2010 - 2009)

= 1000 x 1

= 1000

Answer 4

Ta có 

=8 x 2010 x 125 - 2009 x 437 - 2009 x 563

=(8 x 125) x 2010 - 2009 x (437 + 563)

=1000 x 2010 - 2009 x 1000

=1000 x (2010 - 2009)

=1000x 1

=1000

~Study well~  :)