Lesson 10
Listen and say

How many pigs do you have on your farm?

你的农场里有多少头猪

I have sixteen pigs.

我有十六头猪

I have seventeen hens on my farm.

我的农场里有十七只母鸡

I have eighteen cows.

我有十八头奶牛

Let's say

Five plus ten is fifteen.

5加10等于15

Five times three is fifteen.

5乘以3等于15

Fifteen is five plus five plus five.

15等于5加5加5