Numbers can be placed in order on a number line like this:

When there are numbers missing, say them in your head as you move along the line.

Here we say… 4… 5… 6, so the 5 is missing.
Does that make sense?
Numbers can be placed in order on a number line like this:
When there are numbers missing, say them in your head as you move along the line.
Here we say… 4… 5… 6, so the 5 is missing.
Does that make sense?