摘要：4 + 6 · ·7 · ·3 + 7 10 – 2 · ·6 · ·4 + 4 3 + 4 · ·8 · ·7 – 1 9 – 3 · ·10· ·9 – 2
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| 3×4+1= | 5×7×2= | 2×6×3= | 8×5×9= | 9×6+6= | 8×8+4= | 3×0= | 0×0= | 4×3= | 15×4= | 10×0= | 0×100= | 303×2=1 | 50×4= | 102×5= | 30×6= | 170×4= | 506×5= | 120×5= | 300×6= | 460×8= | 560×5= |
| 3÷4= | 0.9÷3= | 1.5÷0.5= | 10×0.28= |
| 20÷0.4= | 1.2÷0.6= | 0.83+0.25= | 1-0.08= |
| 5χ-χ= | X+X= | 8×12.5= | 0.6×1.5= |
| 2.7+2.7= | 63÷0.9= | 0.3÷1.5= | 10÷0.2= |
| 0.95÷5= | 0×1.7= | 6÷5= | 1.8÷0.36= |
| 3+4= | 5+8= | 0+8= | 9-1= |
| 10-8= | 6-4= | 5-5= | 9-4= |
| 8+8= | 8+7= | 7+7= | 6+9= |
| 3+8= | 5+6= | 9+9= | 15-0= |
| 4+13= | 14-4= | 12+6= | 19-10= |
| 6-3+7= | 19-6-2= | 17-5+3= |
| 3÷4= | 0.9÷3= | 1.5÷0.5= | 10×0.28= |
| 20÷0.4= | 1.2÷0.6= | 0.83+0.25= | 1-0.08= |
| 5χ-χ= | X+X= | 8×12.5= | 0.6×1.5= |
| 2.7+2.7= | 63÷0.9= | 0.3÷1.5= | 10÷0.2= |
| 0.95÷5= | 0×1.7= | 6÷5= | 1.8÷0.36= |