数学-减法
What's 5 minus 2?
5减去2是多少？
5 minus 2 equals 3.
5减去2等于3。
There were 5 birds, but 3 birds flew away. How many birds are left?
这里有5只鸟，不过飞走了3只，还剩多少只鸟呢？
I'll take away 3 from 5. 2 birds are left now.
从5那里拿掉3，现在还剩2只鸟。
Let's write it in a number sentence. It's 5-3=2.
我们把它写成公式吧。这就是5-3=2。
I took away 2 apples from 5 apples. How many are left?
我从5个苹果中拿走2个。那还剩下多少个？
I will give you three more apples. How many do you have now?
我再多给你3个苹果。那你现在有多少个？
By what number is 2 smaller than 5?
2比5小多少？
What is 3 less than 5?
3比5少多少？
2 is 3 less than 5.
2比5少3。