Grade 8Math

Subtracting Integers

Subtracting Integers is a Grade 6-7 math skill that teaches students to subtract positive and negative integers by applying the rule: subtracting an integer is the same as adding its opposite. Students learn to rewrite subtraction problems as addition and apply the rules for adding integers.

Key Concepts

New Concept This course builds your math foundation step by step. You will master core skills and connect them, preparing you for all future math challenges. What’s next This card introduces the big picture. Now, we'll dive into our first specific skill: subtracting integers by transforming them into addition problems.

Common Questions

How do you subtract integers?

To subtract an integer, add its opposite: a - b = a + (-b). For example, 5 - (-3) = 5 + 3 = 8.

What is the rule for subtracting negative numbers?

Subtracting a negative number is the same as adding a positive: a - (-b) = a + b.

What is an example of subtracting integers?

7 - 10 = 7 + (-10) = -3. And -4 - (-6) = -4 + 6 = 2.

Why does subtracting a negative give a positive result?

Because subtracting a negative is the same as adding its positive opposite, which increases the value.

What grade covers subtracting integers?

Subtracting integers is a core Grade 6 and Grade 7 math skill.