Reading the number line
You learn to read which number goes with an arrow on a number line.
How to work it out
- Look how many steps there are between two numbers on the line.
- Divide the difference by that number: that is how much one step is worth.
- Count the steps from the number before the arrow.
Which number goes with the arrow?
- There are 10 steps between 30 and 40.
- One step is 10 ÷ 10 = 1.
- The arrow is 4 steps after 30: 30 + 4 = 34.
More examples
Which number goes with the arrow?
- There are 2 steps between 60 and 70.
- One step is 10 ÷ 2 = 5.
- The arrow is 1 step after 60: 60 + 5 = 65.
Which number goes with the arrow?
- There are 5 steps between 500 and 600.
- One step is 100 ÷ 5 = 20.
- The arrow is 3 steps after 500: 500 + 60 = 560.