题目列表(包括答案和解析)
| 1-0.3= | 5.3+0.5= | 4.7-2.3= | 0.5×0.2= |
| 4×0.25= | 1÷0.01= | 10-0.9= | 3.6÷0.3= |
| 8.7+3.41= | 0.01×50= | 2.5×40= | 7.2÷0.8= |
| 5.6-4.6= | 3.8÷1.9= | 10-5.46= | 5.89+0.11= |
| 1÷0.5= | 5÷40= | 2.4×3= | 0.8×0.5= | 12-8.9= |
| 3.2÷0.8= | 4.01÷100= | 1.7×0.5= | 2.5×400= | 13÷0.001= |
| 3.2×50= | 4.6+2.9= | 0.47+1.8= | 299+324= | 0.6÷5= |
| 6.7-2.9= | 23×2.7+77×2.7= | 5.4+0.74+4.6= |
| 12.25-3.1+0.75-6.9 | 3.75×1.8+2.25×1.8 | 2.5×1.25×32 | [（9+0.25）×12]÷30 |
| 12.5×[（0.72-0.16）÷7] | 3.85×101-3.85 | 17.8-5.8-1.68÷0.4 | 56.9-16.2×39.5×0-17.9． |
| 0.1÷0.2= | 0.06×1000= |
| 2.5+0.5+7.5= | 0.36÷0.03= |
| 3.8×0.1= | 0.8×2.9×1.25= |
| 5.6-5= | 3.9+0.03= |
| （2.5+0.25）×4= |
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