问题
解答题
李红买1副三角尺和1把直尺，一共用去5.3元．已知三角尺的价钱是3.5元．
（1）直尺的价钱是多少元？
（2）直尺比三角尺便宜多少元？
答案
（1）5.3-3.5=1.8（元），
答：直尺的单价是1.8元．
（2）3.5-1.8=1.7（元），
答：直尺比三角尺便宜1.7元．
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李红买1副三角尺和1把直尺，一共用去5.3元．已知三角尺的价钱是3.5元．
（1）直尺的价钱是多少元？
（2）直尺比三角尺便宜多少元？
（1）5.3-3.5=1.8（元），
答：直尺的单价是1.8元．
（2）3.5-1.8=1.7（元），
答：直尺比三角尺便宜1.7元．
| 根据对话内容,用方框中所给词的适当形式填空.(其中有一词多余) | |
cannot teach his 1 everything they want to know. His 2 is to show his students how to learn. He teaches them how to read and how to think. So much more is to be learned outside school by the students 3 . It is always more 4 to know how to study by oneself. It is quite easy to learn something, but it is difficult to use it to solve problems. Great inventors do not get everything 5 school, but they still can 6 many things and change the world a lot. How can the inventors do all of this? One of the answers is: they 7 how to study. A lot of things are not taught in the classroom. They get a lot of knowledge by reading outside school. They work hard and never give up all their lives. |