Add and subtract rational numbers
Add and subtract rational numbers
What you'll learn
- Identify the value of 'x' that makes a given one-step addition or subtraction equation true, and verify the solution by substituting it back into the original equation.
- Solve one-step multiplication and division equations by using inverse operations to isolate 'x', demonstrating the steps taken to find the solution.
- Explain, in their own words, why using inverse operations helps to find the value of 'x' that satisfies an equation, providing a real-world example to support their explanation.
- Apply the concept of balancing equations to determine the value of 'x' in more complex one-step equations that include decimals or fractions, showing all work clearly.
Tutorial Preview
Solve: 3/8 + 2/8
Solve: 1/2 - 1/3
Solve: -2.5 + 1.2
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 the value of 'x' that makes a given one-step addition or subtraction equation true, and verify the solution by substituting it back into the original equation; Solve one-step multiplication and division equations by….
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.