Question

Tính nhanh:  35 x 49+51 x 36

Answer 1

35 x 49 + 51 x 36 = 35 x 49 + 51 x ( 35+1) =35 x 49 + 51 x 35 + 51 = 35 x ( 49 + 51 ) + 51 = 35 x 100 + 51 = 3500+51 = 3551

Answer 2

=(36-1)x49+51x36

=36x49-1x49+51x36

=36x49-49+51x36

=36x(49+51)-49

=36x100-49

=3600-49

=3551

Answer 3

Tính nhanh 9106×101-9136

 

Answer 4

48 * 35 + 54*35 -35*2