Multiply and divide rational numbers
Multiply and divide rational numbers
What you'll learn
- Identify whether the product or quotient of two rational numbers will be positive or negative without calculating the exact answer, justifying the reasoning using rules of integer signs.
- Solve multi-step word problems involving the multiplication and division of positive and negative fractions and decimals, showing all work and using correct units.
- Apply the order of operations to evaluate numerical expressions containing multiplication and division of rational numbers, demonstrating accurate calculations and correct sequencing of steps.
- Explain how multiplication and division are inverse operations and how this relationship can be used to check the solutions to problems involving rational numbers.
Tutorial Preview
What is -1/2 × 3/4?
Calculate -5.2 ÷ 1.3.
Find the product of 0.5 and -4/5.
Sample Practice Questions
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Frequently asked questions
What grade level is "Multiply and divide rational numbers"?
Multiply and divide rational numbers is a Grade 8 Mathematics lesson on ExcelOS.
What will I learn in Multiply and divide rational numbers?
You'll be able to: Identify whether the product or quotient of two rational numbers will be positive or negative without calculating the exact answer, justifying the reasoning using rules of integer signs; Solve multi-step word problems involving….
Is "Multiply and divide rational numbers" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Multiply and divide rational numbers?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.