| 2×0.5= | 4÷0.2= | 0.45×2= | 1.25×8= | 0.4+0.16= | 1.3÷1.3= |
| 1.45+5.5= | 1-0.68= | 0.63÷0.9= | 0.2×0.4= | 0.84÷0.2= | 0.61+0.06= |
| （1）2×0.5=1 | （2）4÷0.2=20 | （3）0.45×2=0.9 | （4）1.25×8=10 | （5）0.4+0.16=0.56 | （6）1.3÷1.3=1 |
| （7）1.45+5.5=6.95 | （8）1-0.68=0.32 | （9）0.63÷0.9=0.7 | （10）0.2×0.4=0.08 | （11）0.84÷0.2=4.2 | （12）0.61+0.06=0.67 |