| 17×40= | 100﹣63= | 3+1.68= | 2.8×0.4= |
| 14﹣7.4= | 1.92÷0.04= | 0.32×500= | 0.65+4.35= |
| 10﹣5.4= | 4÷20= | 3.5×200= | 1.5﹣0.06= |
| A．8.6÷1.5 | B．8.6×0.2 | C．8.6×0 | D．8.6×1 |
| 200×0.04= | 3.5×0.1= | 3.6÷0.09= | 12÷1.2= |
| 0.42÷0.6= | 3.2×0.5= | 0.21×0.3= | 2.5×1.4= |
| 9﹣2.7= | 7.5+9.2= | 2.6×0.3= | 16﹣0.9= |
| 4.5÷0.9= | 8.5×10= | 5.2÷0.2= | 1.2×6= |
| 7.9÷0.1= | 7.6×4= | 4.5÷3= | 0.65÷0.1= |
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