0.1÷10%=
×2.5×7=
1.5-
2.4÷
×0.7=
×= 0×+= 1÷=
÷= ÷= ×÷×=
7× = 75%+25%= = =
= ×0.15= 240×5%= =
99×7.2= 45×10.1= ÷ = + ﹣ = 1.25×3.2×2.5=
28.9÷1.25÷0.8= 56.5×9.9+5.65= (2.5﹣0.25)×0.4=
78.2﹣8.2×1.3= 4.5÷1.5÷1.5=