go up the number line (move to the right). When subtracting a positive number, go down the number line (move to the left). Start at \(3\) and go down \(10\). The answer is \(- 7\).

We can use a number line to add or subtract numbers from 1-10.

Explains the concept of zero in mathematics, emphasizing its role as a number that represents the empty set. It illustrates ...

A number line is a pictorial representation ... You can have them subtract one roll from the next and use the number sequences to measure probability. Also, if you take a close look at a standard ...