Mathematics Grade 8 15 min

Add, subtract, multiply, and divide decimals: word problems

Add, subtract, multiply, and divide decimals: word problems

What you'll learn

  • Identify the effects of changing the parameters a, h, and k in the quadratic function f(x) = a(x - h)^2 + k on the graph of the parabola with 80% accuracy.
  • Apply transformations to the graph of y = x^2, including vertical stretches/compressions, reflections, and horizontal/vertical translations, and write the corresponding equation of the transformed quadratic function in vertex form with 75% accuracy on a quiz.
  • Explain how the vertex form of a quadratic function, f(x) = a(x - h)^2 + k, relates to the transformations applied to the parent function f(x) = x^2 in a written explanation with at least 3 supporting details and accurate mathematical vocabulary.
  • Given a quadratic function in standard form, convert it to vertex form by completing the square and identify the transformations applied to the parent function with 70% accuracy on a worksheet.

Tutorial Preview

1

Leo buys 4 notebooks at $2.25 each. What is the total cost?

2

A 12.5-ounce bag of chips is shared by 5 friends. How many ounces does each friend get?

3

Maria pays with a $20 bill for a book that costs $14.75. How much change does she get?

Sample Practice Questions

Easy
You buy 3 pens at $1.50 each. What is the total cost?
0.$4.50
1.$3.50
2.$5.00
3.$4.00
Easy
A 6.9-meter rope is cut into 3 equal pieces. What is the length of each piece?
0.2.1m
1.2.3m
2.3.0m
3.2.5m
Easy
A sandwich costs $7.50. You pay with a $10 bill. How much change do you get?
0.$3.50
1.$2.00
2.$2.50
3.$1.50

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Frequently asked questions

What grade level is "Add, subtract, multiply, and divide decimals: word problems"?

Add, subtract, multiply, and divide decimals: word problems is a Grade 8 Mathematics lesson on ExcelOS.

What will I learn in Add, subtract, multiply, and divide decimals: word problems?

You'll be able to: Identify the effects of changing the parameters a, h, and k in the quadratic function f(x) = a(x - h)^2 + k on the graph of the parabola with 80% accuracy; Apply transformations to the graph of y = x^2, including vertical….

Is "Add, subtract, multiply, and divide decimals: word problems" 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, subtract, multiply, and divide decimals: word problems?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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