Question

Bài 1 : Tính nhanh : 49 x ( 37 + 25 ) + 62 x ( 121 - 60 )

 

Answer 1

49 x (37+25) + 62 x (121- 60)

= 49 x 62 + 62 x 61

= 62 x (49+61)

=6820

Answer 2

49*(37+25)+62*(121-60)

=49*62+62*61

=62*(49+61)

=62*110

=6820

Answer 3

49 x ( 37 + 25 ) + 62 x ( 121 - 60 )

= 49 x 62 + 62 x 61

= 3038 + 3728

= 6820