Step by step
The question
Question: what comes after 199?
What comes after 199?
We write it in numbers.
The box is the number we want.
= 199, □
1 Find 199
Here is a number line.
2 Go one step right
We land on 200.
3 Write the number
So after 199 comes 200.
= 199, 200
Careful!
After 9 ones, the ones start again at 0.
The tens go up by 1.
Careful: 199 → 200: the ones start again at 0
4 Check
We check it the other way.
Before 200 comes 199.
Yes!
It works.
Before 200 comes 199
Let's look back.
First: find 199.
Then: go one step right.
Then: write the number.
Last: check.
Answer
= 199, 200