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Math · Grade 6 Accelerated · Unit 6

Unit 6: Percent Increase and Decrease

Students deepen their understanding of proportional relationships and percentages, solving multi-step problems and applying percent increase and decrease in real-world contexts.

Worksheets

Every sheet has an answer key. Free to print, no login.

Unit
📝 Worksheet ✅ Answer guide
Concept
📝 Worksheet ✅ Answer key
Practice
Set 1
📝 Worksheet ✅ Answer key
Set 2
📝 Worksheet ✅ Answer key
Advanced
Set 1
📝 Worksheet ✅ Answer key
Set 2
📝 Worksheet ✅ Answer key

What this unit covers

A Proportional Relationships with Fractions · 3 lessons
Goals
  • Create algebraic expressions that represent a situation involving adding or subtracting a fraction of the initial value.
  • Solve problems about proportional relationships with fractional quantities.
  • Use long division to generate a decimal representation of a fraction.
Lessons
  1. Revisiting Proportional Relationships
  2. More than That, Less than That
  3. Say It with Decimals
B Percent Increase and Decrease · 4 lessons
Goals
  • Create algebraic expressions or equations that represent a situation involving percent increase or decrease.
  • Use diagrams to solve problems involving percent increase or decrease.
Lessons
  1. Increasing and Decreasing
  2. One Hundred Percent
  3. Percent Increase and Decrease with Equations
  4. Part of a Percent
C Applying Percentages · 4 lessons
Goals
  • Calculate measurement error, and express it as a percentage of the actual value.
  • Solve problems involving tax, tip, simple interest, markup, markdown, or commission.
Lessons
  1. Tax and Tip
  2. Percentage Contexts
  3. Solving Multi-step Percentage Problems
  4. Expressing Error as a Percentage
D Let’s Put It to Work · 2 lessons
Lessons
  1. Changes on the Earth (Optional)
  2. Posing Percentage Problems
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Adapted from the Illustrative Mathematics curriculum (v.360), licensed CC BY-NC 4.0. © Illustrative Mathematics.