米的钢管锯成若干相等的小段，一共锯了4次，平均每段钢管长多少米？| 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= |
| 1-0.3= | 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= |
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