Adding and Subtracting Integers

In this video, Marlene teaches how to add and subtract positive and negative integers. The lesson begins with a recap of the number line concept, followed by four key rules: adding positive integers, adding negative integers, subtracting positive integers, and subtracting negative integers. Each rule is explained with examples and visual aids using a number line. The video concludes with a recap of the rules and additional practice examples to reinforce learning.

What happens to numbers as you move to the right on a number line?

• They get smaller.

• They get larger.

• They stay the same.

• They become negative.

What should you do when adding a positive integer?

• Add the integer.

• Subtract the integer.

• Multiply the integer.

• Ignore the integer.

Calculate: 2 + 3

• 1

• 5

• 3

• 6

If you have -5 and add 2, what is the result?

• 3

• 7

• -3

• -7

What is the result of adding a negative integer?

• You multiply the integer.

• You subtract the integer.

• You add the integer.

• You divide the integer.

Calculate: 5 + (-3)

• 2

• 3

• 8

• -2

What is 1 + (-2)?

• 2

• 3

• -1

• 1

When subtracting a positive integer, what should you do?

• Multiply the integer.

• Ignore the integer.

• Add the integer.

• Subtract the integer.

Calculate: 5 - 3

• 8

• 2

• 3

• 5

What is the result of 0 - 2?

• 0

• -2

• 1

• 2