Mathematics Grade 8 15 min

Solve problems involving proportional relationships

Solve problems involving proportional relationships

What you'll learn

  • Calculate the percentage of a given number or money amount with at least 80% accuracy using multiplication.
  • Solve real-world problems involving finding the percent of a number, such as calculating discounts or sales tax, with clear steps shown for each problem.
  • Explain the relationship between fractions, decimals, and percents and convert between these forms in the context of solving percentage problems.
  • Identify the key information needed to solve percent problems (e.g., the whole, the part, the percent) in at least 4 out of 5 word problems.

Tutorial Preview

1

If 4 apples cost $2, how much does 1 apple cost?

2

A recipe needs 2 cups of flour for 12 cookies. How much flour for 36 cookies?

3

A car travels 120 miles in 2 hours. How far does it travel in 5 hours?

Sample Practice Questions

Easy
If 3 pens cost $6, what is the cost of one pen?
0.$1
1.$2
2.$3
3.$6
Easy
A recipe uses 1 cup of sugar for 10 muffins. How much sugar is needed for 30 muffins?
0.3 cups
1.10 cups
2.2 cups
3.30 cups
Easy
A bike travels 20 miles in 2 hours. How far does it travel in 1 hour?
0.5 miles
1.10 miles
2.20 miles
3.40 miles

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Frequently asked questions

What grade level is "Solve problems involving proportional relationships"?

Solve problems involving proportional relationships is a Grade 8 Mathematics lesson on ExcelOS.

What will I learn in Solve problems involving proportional relationships?

You'll be able to: Calculate the percentage of a given number or money amount with at least 80% accuracy using multiplication; Solve real-world problems involving finding the percent of a number, such as calculating discounts or sales tax, with….

Is "Solve problems involving proportional relationships" 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 Solve problems involving proportional relationships?

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

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