Chapter 8.1
Representing percents
What You'll Learn
Calculate percents of whole numbers and decimals using loading strip models
Determine percentages by dividing numbers in half repeatedly (50%, 25%, 12.5%)
Find 10% by dividing by 10 and understand percent as 'per hundred'
Combine percentages by adding their decimal values (75% = 50% + 25%)
Convert between percents, fractions, and division to solve problems
What You'll Practice
1
Using loading strip models to find 25%, 50%, and 75% of numbers
2
Calculating 10% and 12.5% through repeated division
3
Finding percentages of whole numbers like 48, 100, and 250
4
Working with decimal results when dividing (e.g., 7.5, 31.25)
Why This Matters
Understanding how to represent and calculate percents is essential for everyday situations like calculating discounts, tips, taxes, and test scores. This visual approach with loading strip models builds number sense that connects to fractions, decimals, and ratios throughout algebra.
Before You Start — Make Sure You Can:
This Unit Includes
5 Video lessons
Skills
Percents
Division
Decimals
Visual Models
Number Sense
Fractions
