Question

Tính nhanh :

a) 2012 x 2013 - 1013 x 2013 + 2013 =

Answer 1

2012 x 2013 - 1013 x 2013 + 2013

= 2012 x 2013 - 1013 x 2013 + 2013 x 1

= 2013 x ( 2012 - 1013 + 1 )

= 2013 x         1000

=       2013000

Answer 2

a) 2012x2013-1013x2013+2013

=2013(2012-1013+1)

=2013x1000

=2013000

Answer 3

\(2012x2013-1013x2013+2013\)

\(=2013x\left(2012-1013+1\right)\)

\(=2013x1000\)

\(=2013000\)

Nhớ ấn đúng cho mình nha! 

Answer 4

=2013 x (2012-1013+1)

=2013 x 1000

=2013000

Answer 5

\(=3012000\)