题目列表(包括答案和解析)
7×5 = |  ÷ = |  + = |
× = | 1+ -0.4= |  +0.75= |
 + = |  ÷9= | += |
 ×0.4= | 4÷ = |  ×= |
| （2+）×（1+）= | ×9= |  += |
| 4÷= | +1= | 5-（2+ ）= |
| 4.5÷= | 39× = | 11×（10+ ）= |
| 11+（3+）= |  ×= | 8×= |
| 12-（6+）= | 1÷（1+）= | 20÷20%= |
| 1÷0.01= | 1.12= | 9.9÷（1+ ）= |
81÷ = | 1.65-0÷1.65= | × ×= |
| 5-1.4-1.6= | （0.18+0.9）÷9= | 8× ×1.25= |
| 1.25×0.16×8= | +7.3÷10%= | +9-0.2= |
| 5.08-0.74-1.26= | ×0.2= | 1-.0375÷= |
| 8÷0.5+×（1+）= | （ +）×24= | 10（3+ ）÷（3+）= |
| （3++5++2+）-（5+）= | + ÷+= | 1--= |
| 3-（2+）+（2+）= | -÷3= | 0×（3+）+（1+）= |
| +-+= | 0.125×64×0.125= |  ×8+8×= |
| +×16= | -+= |
| 1.2×5= | 0.8×7= | 0.4×0.5= | 4.8×0.2= |
| 0.3×60= | 6.09×0= | 8.8×0.1= | 5.28+1.6= |
| 6.4÷0.8= | 7.5-4.5= | 5.7+4.3= | 0.52= |
| 1÷0.25= | 48.5÷4.85= | 0.36×2= | 2.5×4÷2.5×4= |
| 12.5×0.8= | 5.1÷0.3= | 2.4×6= | 17÷0.17= |
| 3.2÷0.8÷0.4= | 0.25×4÷0.25×4= | 1.25×16= | 7.01-2.58= |
| 0.05÷0.1= | 6.88÷4= |
| 6.5+7.5= | 2.9+0.47= | 3-2.3= | 5.3-0.8= |
| 5.6÷8= | 2.4×0.6= | 1.25×8= | 1.2÷0.06= |
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