A cat is at number 3. A rat is at number 10. Assuming both are standing on a number line, how far is the rat from the cat?
7
The difference between two consecutive numbers is 1 and let's consider this difference to be a one step.
The cat is at number 3 and the rat is at number 10. The difference between 10 and 3 is 7, therefore the rat is 7 steps away from the cat.