Budgeting with Integer Operations

9th Grade45 minutesIllustrative Mathematics

Learning Objective

I can apply integer operations to solve real-world budgeting problems.

Key Concepts

When adding integers with different signs, take the greater absolute value and subtract the lesser. The answer will take the sign of the greater absolute value.

When subtracting integers, you must add the opposite.

When multiplying or dividing integers, the same signs result in a positive product or quotient, while different signs result in a negative product or quotient.

Practice Questions

This lesson includes 6 practice questions to reinforce learning.

View questions preview

1. When adding integers with different signs, what determines the sign of the final answer?

2. Explain how subtracting a negative integer is different from subtracting a positive integer. Use an example to illustrate your explanation.

3. A student has a budget of $50. They spend $65 on a video game. Represent this situation using integers and determine how much over budget the student is.

...and 3 more questions

Educational Video

How to Add, Subtract, Multiply, and Divide Integers | A Review of Integers | Math with Mr. J

Math with Mr. J

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