Question

53 . 39 + 47 . 39 - 53 . 4 - 47 . 21

Answer 1

=53.(39-4)+47.(39-21)

=53.35+47.18

=1855+846

=2701

 

Answer 2

53 . 39 + 47 . 39 - 53 . 4 - 47 . 21

=53.(39-4)+47.(39-21)

=53.35+47.18

=1855+846

=2701

tich dung cho minh nhe