Unit 7: Ratios, Percentages, and Proportional Reasoning

Day 28 of 30

Solve percent word problems

K-2Mathematics

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Learning Objective

I can solve percent word problems.

Today's Lesson

Today we will learn how to solve percent word problems. Math helps us solve problems and understand the world around us.

Percent means "out of 100." The symbol % stands for percent. For example, 50% means 50 out of 100, which is the same as 1/2 or 0.50. To find a percent, divide the part by the whole and multiply by 100. Percents are used everywhere: test scores (80%), discounts (25% off), and statistics (60% of students). Understanding percents helps you compare and understand data!

Let's break this down step by step so it's easy to understand. Follow along with the examples, and don't worry if it takes some practice to get the hang of it!

Remember: Making mistakes is part of learning. If something is tricky, try again, look at the examples, or ask for help.

Key Terms
Percent

A number out of 100

Word

A group of letters that means something

Activities
Instructions
1. Use objects or pictures to explore solve percent word problems. 2. Try the examples together. 3. Solve practice problems. 4. Check your work.
Materials Needed
  • Counters or objects
  • Pencil
  • Practice sheet
Practice Problems
1

What is 50% of 20?

Hint: 50% means half.
2

Convert 1/4 to a percent.

Hint: 1/4 = 0.25, then multiply by 100.
3

A shirt costs $40. It is on sale for 25% off. How much is the discount?

Hint: Find 25% of $40.

Teaching Tip

For younger learners: Use concrete objects and hands-on activities when teaching solve percent word problems. Keep sessions short (10-15 minutes) and incorporate movement or songs when possible.

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