摘要： ?7+8= 8+5= 2+10= 9+2= 9+6= 6+9= 9+9= 8+8= 3+8 10+3=
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| 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= |