摘要：2+8 6+0 2+7 10-4 6+2
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| 3.6×0.2= | 12.5×0.8= |
| 0.32+6.4= | 0.2×0.37= |
| 0.43×0.2= | 3.7×10= |
| 5.73-5.73×0= | 32.7×0.99+0.01×32.7= |
6-2 = | 18 ÷9= | 5.6× = |  + = | 8÷= |
 ÷0.8= | 3.6-1= | × = | 3.14×4= |  + = |
+2 = | 0.45÷ = | 55÷ = | 8÷ = | 10-9.45= |
3 +4 = | 0.36×100= | 0.5÷100= | 1× = | ÷7= |
| 32.8+19= | 0.51÷17= | 240÷30= | 1000×0.8= | 3.06+0.2= |
| 0.67+1.24= | 8×125= | 7-6.28= | 8.2-0.01= | 99×23= |
| 50×4= | 5÷1000= | 0.42+9.5= | 65×25×4= | 0.08÷100= |
| 10×0.5= | 1.82-0.63= | 4.5+1.5= | 1-0.63= | 231-99= |