0.2× = ×4÷ ×4= ÷ =
16÷20%= 3.2+ - +3.2= × ×0=
× =
5÷0.4=
0÷12=
1- =
12×2.5×4=
÷ =
0.89÷100=
2.8×0.1=
=
3.4÷8÷12.5=
+= ﹣= 24×= 5﹣=
30÷= += +0.25= ÷=
①2.65×1.7+7.35×1.7
②36×( + )
③54.2- +4.8-1
④0.7÷[( - )×24]
59×101
[2-( + )]÷
2.5÷ ×
12.5×4.8+87.5×4.8