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。