Math topics

Integers practice

Integers include positive numbers, negative numbers, and zero. Adding a negative moves left on the number line; subtracting a negative moves right. Keeping a number-line picture reduces sign mistakes.

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Worked example

Problem. What is 12 + (−1)?

1. Start at 12 on the number line.
2. Adding −1 means move 1 unit left.
3. You land on 11.

Answer. 11

Practice set

1. Practice 1. What is 5 + (−3)?

   Show answer

   2

2. Practice 2. What is −4 + 6?

   Show answer

   2

3. Practice 3. What is 0 − 5?

   Show answer

   −5

Related pages

• Basic algebra
• One- and two-step equations
• Math for grades 6–8

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