4.7+2.3= 4.5×2= 6.9－2.5= 7.2×0.8=

6×3.4= 0.62－0.32= 1.4×0.5= 0.75×100=

0.02×0.5= 3.6÷0.3= 6.3÷7= 5.6÷100=

0.75÷0.25= 0.125×8= 4.8÷0.3= 0.96÷2=

0.56÷28= 0.36÷0.4= 0.64÷0.8= 0.72÷3.6=

3.6÷24= 0.8×1.1= 7.2+12.8= 46.7－3.8=

12.8÷4= 5.2÷13= 12.5÷5= 1.64÷41=

10÷20= 24÷15= 8.65×10= 0.35×0.6=

3.08×0.01= 4.95×1000= 6.9×0.1= 0.4×0.5=

2.4÷0.8= 10.8÷9= 9.6÷0.8= 0.108÷2=

4.95÷0.9= 9.65÷0.1= 0.325×100= 2.5×8=

0. 56÷0.7= 0.125×4= 3.28×0.1= 3.9÷0.13=

7.2×0.1= 0.01×0.1= 0.25×0.4= 1.6÷0.8=

1÷2.5= 1.25×0.8= 3.2÷0.04= 0÷1.7=

0.22×102= 9÷0.25÷4= 0.25×3.97×4= （1.2＋8.8）×0.4=