用同样的钱购买不同笔记本的单价和数量如表.
单价/元 | 1.5 | 2 | 2.5 | 3 |
数量/本 | 20 | 15 | 12 | 10 |
125×9.3×0.08 | 13.7×102-2×13.7 |
(6.7+6.7+6.7+6.7)×2.5 | 4.5÷[(27.8-25.3)×0.4] |
0.096÷0.01+(75-28÷112) | 90.8-(7.03-2.17)×4.5. |
单价/元 | 1.5 | 2 | 2.5 | 3 |
数量/本 | 20 | 15 | 12 | 10 |
125×9.3×0.08 | 13.7×102-2×13.7 |
(6.7+6.7+6.7+6.7)×2.5 | 4.5÷[(27.8-25.3)×0.4] |
0.096÷0.01+(75-28÷112) | 90.8-(7.03-2.17)×4.5. |