Lesson 33 Some Phrases About Math

Lesson 33: Some phrases about math and numbers.  第三十三课：一些关于数学和数字的短语。

1) Please add up the bill.   请把账单加起来。

2) Did you subtract or deduct my coupon? 您减去了我的优惠券吗？

3) When did you first learn to multiply? 你第一次学习乘法是什么时候？

4) He divided the grapes between the four of us.   他把葡萄分给了我们四个人。

5) When she was in middle school, she learned algebra.

她上中学时学过代数。

6) He is an engineer so he uses calculus everyday.  他是个工程师，因此他每天都会运用微积分。

7) She calculated the amount of the tip for the meal.  她计算了餐费的小费金额。

8) The law of averages says I won't win the lottery.  平均法则说我不会中彩票。

9) Taxes are usually determined by a percentage. 

税收通常按百分比来确定。

10) Have you determined the sum of money we will need?

你确定我们需要多少钱了吗？

11) What was your rate of speed? 你的速度是多少？

12) I'm afraid you put the decimal point in the wrong place.  你或许把小数点的位置放错了。

13) A prime number is one that cannot be divided evenly by any other number.

质数是不能被除了1和自身以外的其它自然数整除的自然数。

14) Computers software is written in binary code.  计算机软件是用二进制代码编写的。

15) Scientists understand the trajectory of the sun across the sky.  科学家了解太阳在天空中的运行轨迹。