Step by step
The question
Question: what comes before 300?
What comes before 300?
We write it in numbers.
The box is the number we want.
= □, 300
1 Find 300
Here is a number line.
2 Go one step left
We land on 299.
3 Write the number
So before 300 comes 299.
= 299, 300
Careful!
Before 0 ones, the ones go back to 9.
The tens go down by 1.
Careful: 300 → 299: the ones go back to 9
4 Check
We check it the other way.
After 299 comes 300.
Yes!
It works.
After 299 comes 300
Let's look back.
First: find 300.
Then: go one step left.
Then: write the number.
Last: check.
Answer
= 299, 300