| A．3.75×0.75 | B．9.04×1 | C．0.24×1.02 |
| A．1.76×8.52 | B．1.75×8.5 | C．1.76×8.03 |
| A．3.24÷21 | B．32.4÷21 | C．0.324÷2.1 | D．324÷21 |
| 10÷4= | 12.9÷0.3= | 1.3÷0.13= | 0.6÷1.2= | 0.3÷2= |
| 0.32÷0.04= | 2.64÷1.1= | 10÷2.5= | 1÷0.125= | 3.9÷0.65= |
| 0.38+1.2= | 4.8÷0.8= | 9.025×100= | 9﹣2.3﹣3.7= |
| 4×31×25= | 17×5= | 28×0÷54= | 65+37×0= |
| 5.5+2.81+4.5= | 25×4÷25×4= |
| 0.2×5= | 0.1×2.97= | 1.25×8= | 2.4÷4= | 2.4×3= |
| 6.8÷4= | 5×0.2= | 15.6÷0.2= | 0÷4.76= | 0.606÷0.3= |
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