7th grade percent problems
Quick answer
This 7th grade (ages 12–13) unit covers multi-step percent problems: percent increase and decrease, discounts, sale prices, sales tax, tips and percent error. It starts with Math Antics' percent review, then Math with Mr. J and Khan Academy's "Tax, discount and tip examples". Loop one worked example, slow it to 0.75×, and repeat it.
Videos in this playlist
- 1
Math Antics - What Are Percentages?mathanticsPlay from here Loop - 2
Math Antics - Finding A Percent Of A NumbermathanticsPlay from here Loop - 3
How to Solve Percent Problems Using the Percent Equation | Math with Mr. JMath with Mr. JPlay from here Loop - 4
Math Antics - Calculating Percent ChangemathanticsPlay from here Loop - 5
Percent of Change | Percent Increase and Decrease | Math with Mr. JMath with Mr. JPlay from here Loop - 6
Calculating Percent Increase | Percent Change | Math with Mr. JMath with Mr. JPlay from here Loop - 7
Calculating Percent Decrease | Percent Change | Math with Mr. JMath with Mr. JPlay from here Loop - 8
Calculating Percent Increase in 3 Easy StepsMashup MathPlay from here Loop - 9
How to Find Percent Change | Math with Mr. JMath with Mr. JPlay from here Loop - 10
Finding the percent increase in pricing | 7th grade math (IM® v.360 aligned) | Khan AcademyKhan AcademyPlay from here Loop - 11
Writing expressions for a percent increase | 7th grade math (IM® v.360 aligned) | Khan AcademyKhan AcademyPlay from here Loop - 12
Expressing a percent decrease as a percentage of the original | Khan AcademyKhan AcademyPlay from here Loop - 13
How to Calculate a Discount and Sale Price | Math with Mr. JMath with Mr. JPlay from here Loop - 14
How to Calculate a Discount without a Calculator | Calculating Discounts by Hand | Math with Mr. JMath with Mr. JPlay from here Loop - 15
Finding the Original Price Given the Sale Price and Percent Discount | Math with Mr. JMath with Mr. JPlay from here Loop - 16
Finding the discount percentage from a sale price | Khan AcademyKhan AcademyPlay from here Loop - 17
How to Calculate Sales Tax | Math with Mr. JMath with Mr. JPlay from here Loop - 18
How to Calculate Sales Tax without a Calculator | Calculating Sales Tax by Hand | Math with Mr. JMath with Mr. JPlay from here Loop - 19
Finding the sales tax percentage from a price | 7th grade math (IM® v.360 aligned) | Khan AcademyKhan AcademyPlay from here Loop - 20
Tax, discount and tip examplesKhan AcademyPlay from here Loop - 21
An Intro to Percent Error | Math with Mr. JMath with Mr. JPlay from here Loop - 22
Finding percent error | 7th grade math (IM® v.360 aligned) | Khan AcademyKhan AcademyPlay from here Loop - 23
Percent word problem examplesKhan AcademyPlay from here Loop - 24
How to Solve Percentage Word ProblemsMashup MathPlay from here Loop - 25
Percent Word Problems | Solving Percent Problems Using the Percent EquationMath with Mr. JPlay from here Loop
What should a student be able to do after this unit?
Find a percent of a number, calculate percent increase and decrease, work out a sale price after a discount, add sales tax or a tip to a bill, find an original price, and calculate percent error. Videos move from review to these real-world problems.
How can RepeatWatch help with percent word problems?
Set an A–B loop on the one problem a student is stuck on, from reading the question to the answer. Play it at 0.75× when the percent becomes a decimal. Save several examples on keys 1–9 and use Stop after N loops to end on time.
Frequently asked questions
Is the percent change formula covered?
Yes. Math Antics' "Calculating Percent Change" and several Math with Mr. J videos explain the change divided by the original amount, with separate examples for percent increase and percent decrease, before the discount and tax lessons.
Is this always taught in 7th grade?
Grade levels vary by country and school. In the US, percent problems with tax, tips and discounts usually come in 7th grade (ages 12–13), building on 6th grade percent basics. Use whichever videos match where a student is.