Number Line and Comparing Numbers
A number line is a straight line.
It shows numbers in order.
Numbers get bigger as we move right.
Numbers get smaller as we move left.
Interactive visualization — available in the full lesson
0
Interactive visualization — available in the full lesson
1
Interactive visualization — available in the full lesson
2
Interactive visualization — available in the full lesson
3
Interactive visualization — available in the full lesson
4
Interactive visualization — available in the full lesson
5
Interactive visualization — available in the full lesson
6
Interactive visualization — available in the full lesson
7
Interactive visualization — available in the full lesson
8
Interactive visualization — available in the full lesson
9
Comparing Numbers
We can compare two numbers.
We use these special signs:
> means "greater than"
< means "less than"
= means "equal to"
On a number line:
- Numbers to the right are bigger.
- Numbers to the left are smaller.
5 is to the right of 3.
So 5 is greater than 3.
We write: 5 > 3
2 is to the left of 7.
So 2 is less than 7.
We write: 2 < 7