Adding and Subtracting Integers Lessons

Presentation

•

Mathematics

•

7th Grade

•

Hard

Joseph Anderson

FREE Resource

4 Slides • 7 Questions

Adding/Subtracting Integers

Adding Integers rules

If the signs are the same, add the numbers and keep the sign
If the signs are different, subtract the numbers and keep the sign of the largest absolute value

Subtracting Integers rules

Keep the first number the same, change the subtraction sign to addition, change the second number to its opposite
Follow the Addition rules

Fill in the Blanks

What is -5 + 3?

Type answer...

Fill in the Blanks

What is 5 - 11?

Type answer...

Multiple Choice

Sandra has $32 in her purse. She pays $15 for a CD. Which expression represents this situation?

32 + 15

-32 + 15

-32 + (-15)

32 + (-15)

Multiple Choice

Chi is 38 feet underground touring a cavern. He goes down a ladder 7 feet. What is his new location?

-45 feet

-38 feet

-31 feet

-7 feet

Multiple Choice

The highest point in a state park is 145 feet above sea level. The lowest point is 28 feet below sea level. What is the difference in elevations?

117 feet

28 feet

145 feet

173 feet

Open Ended

What are your thoughts on adding and subtracting integers? Write a brief self-reflection.

Type response here

Poll

On a scale of 0 - 2, rate yourself on adding and subtracting integers.

0 - I'm completely lost!

1 - I know some of it but not 100% confident

2 - I got everything correct, ready to move on!

Adding/Subtracting Integers

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