Add and subtract rational numbers
Add and subtract rational numbers
What you'll learn
- Identify rational numbers (including positive and negative fractions, decimals, and integers) on a number line with 80% accuracy.
- Solve addition and subtraction problems involving rational numbers (fractions and decimals) with common denominators or easily convertible denominators, achieving at least 70% accuracy on a quiz.
- Explain the process of adding and subtracting rational numbers using mathematical vocabulary (e.g., common denominator, absolute value, additive inverse) in at least two complete sentences with 100% accuracy in vocabulary usage.
- Apply the rules of adding and subtracting rational numbers to solve real-world problems (e.g., temperature changes, debt/credit scenarios) with 60% accuracy.
Tutorial Preview
Solve: -3/8 + 5/8
Solve: 1/3 - 3/4
Solve: -2.5 + 0.75
Sample Practice Questions
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Frequently asked questions
What grade level is "Add and subtract rational numbers"?
Add and subtract rational numbers is a Grade 8 Mathematics lesson on ExcelOS.
What will I learn in Add and subtract rational numbers?
You'll be able to: Identify rational numbers (including positive and negative fractions, decimals, and integers) on a number line with 80% accuracy; Solve addition and subtraction problems involving rational numbers (fractions and decimals) with….
Is "Add and subtract 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 Add and subtract rational numbers?
This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.