20%x-5.6=1.4
20×70%= 70÷14= 30÷15%=
120×0.3%= 8-0.35= 3÷3%= 125%×0.8=
1-0.6=
0.9÷0.1=
0.01×10=
0.52=
8a+0.6a=
①12.5×3.2×2.5
②2.25×4.8+77.5×48%
③×+÷
④=:
⑤x:1.5=6:27
⑥4.8:=:x
1-x= = :x=3×
4.6×0.32= 91.2÷7.6= 78.6÷11=(商用循环小数表示)