题目内容
| 2×5= | 4.2-1.8= | 12.5×8= | 3.54×10= |
| 70×50= | 2.15+1.85= | 0÷0.25= | 2÷0.4= |
| 9÷6= | 7x-2.8x= |
| 2×5=10, | 4.2-1.8=2.4, | 12.5×8=100, | 3.54×10=35.4, |
| 70×50=3500, | 2.15+1.85=4, | 0÷0.25=0, | 2÷0.4=5, |
| 9÷6=1.5, | 7x-2.8x=4.2x. |
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题目内容
| 2×5= | 4.2-1.8= | 12.5×8= | 3.54×10= |
| 70×50= | 2.15+1.85= | 0÷0.25= | 2÷0.4= |
| 9÷6= | 7x-2.8x= |
| 2×5=10, | 4.2-1.8=2.4, | 12.5×8=100, | 3.54×10=35.4, |
| 70×50=3500, | 2.15+1.85=4, | 0÷0.25=0, | 2÷0.4=5, |
| 9÷6=1.5, | 7x-2.8x=4.2x. |