| 1. | Lightly touch certain numbers to enter a math problem
轻轻地按某些特定数字，输入一道数学题。 |
| 2. | He is working hard at a maths problem
他正在用心做一道数学题。 |
| 3. | He ' s thinking about the math problem
他正在思考一道数学题。 |
| 4. | He was thinking about a math problem
他正在思考一道数学题。 |
| 5. | Another solution of a mathematical problem
一道数学题的另解 |
| 6. | He is working on a math problem , and i don ’ t doubt he can work out it
他正忙着一道数学题，我毫不怀疑他肯定能解答出来。 |
| 7. | You ask your parents help on one math problem ; 2 hours later they ' re still lecturing
你问你父母一道数学题，两小时后他们还在教训你。 |
| 8. | If solving a mathematical problem is " thinking ， then a computer can " think and do so much faster than a man
如果解一道数学题是"思考" ，那么电脑会"思考" ，而且比人脑快得多。 |
| 9. | Teacher : i know most of you are interested in maths . today , i ' d like you to work out a maths problem . please look at the screen
（我知道大家对数学感兴趣，今天我想让你们做一道数学题请看大屏幕） 。 |
