Addition and Subtraction
Practice questions and examples in addition and subtraction using positive and negative numbers.
Example 1: Addition
You can represent both positive and negative numbers on a number line. When you are adding you move to the right.
Use a number line to work out 2 + 5
Start at 2, and because you are adding count five spaces to the right. You should end at 7.
2 + 5 = 7