Adding and Subtracting Integers
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Objective
I can perform operations with integers and explain the rules for positive and negative signs.
Part 1 of 4
Warm-up video
Math with Mr. J · 8:32Vetted channel
We don't generate video — this one is by Math with Mr. J on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 4
Key concepts
3 concepts
- 1
When adding integers with different signs, take the greater absolute value and subtract the lesser; the answer takes the sign of the greater absolute value.
- 2
When subtracting integers, you must add the opposite of the second number to the first number.
- 3
Adding a negative number decreases the value, while subtracting a negative number increases the value.
Part 3 of 4
Practice
8 questions
Explain the rule for adding integers with different signs. How do you determine the sign of the answer?
Calculate: -15 + (-8)
Part 4 of 4
Exit ticket
Quick comprehension check
“Evaluate the following expressions: 1. -15 + 8 2. 7 - (-12) ”
Sample answer included in the free materials
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