Question

用简便方法计算要过程谢谢1.25x（0.8+0.4） 38.5x101-38.5

用简便方法计算要过程谢谢1.25x（0.8+0.4） 38.5x101-38.5 1.25x48 37x2.01

Answer 1

1.25×0.8+1.25×0.4
=1+0.5
=1.5

追答

38.5×(101-1)
=38.5×100
=3850

1.25×8×6=10×6=60

37×(2+0.01)
=37×2+37×0.01
=74+0.37
=74.37

Answer 2

1.25×0.8+1.25×0.4
＝1+0.5＝1.5
38.5×（101-1）＝3850

1.25×8×6＝60

37×2+37×0.01＝74.37