Question

Tính nhanh

27+ (43+11) - 43- (27+11)

Answer 1

\(27+\left(43+11\right)-43-\left(27+11\right)\)

\(=27+43+11-43-27-11\)

\(=\left(27-27\right)+\left(43-43\right)+\left(11-11\right)\)

\(=0+0+0\)

\(=0\)

Answer 2

27+(43+11)-43-(27+11)

= 27 + 43 + 11 - 43 - 27 -11

= ( 27 - 27 ) + ( 43 - 43 ) + ( 11-11 )

= 0 + 0 + 0

=0