Question

用简便方法计算： 1.25×67.875+1250×0.053375

Answer 1

1.25×67.875+1250×0.053375
= 1.25x67.875 + 1.25x1000x0.053375
= 1.25 x 67.875 + 1.25 x 53.375
= 1.25 x( 67.875+53.375)
= 1.25 x 100
= 125

Answer 2

1.25×67.875+1250×0.053375
=1.25×67.875+1.25×53.375
=1.25x(67.875+53.375)
=1.25x121.25
=5/4x (120+5/4)
=5/4x120+5/4x5/4
=150+25/16
=151又 9/16

Answer 3

1.25（1*67.875+1000*0.053375）

Answer 4

=1.25*67.875+1.25*53.375
=1.25*121.25
=1212.5/8
=151.5625