Unit 2: Percents

In this video, Mrs. Bebow will explain the two methods for solving percent problems (the percent proportion and the percent equation). She will then go through 4 examples on how to solve percent problems where you are asked to find the percent. She will use both methods to solve the problems so that you can see how each of them work!

Solve Percent Problems, Part 2 (Find the Part)

In this video, Mrs. Bebow will go through 4 examples on how to solve percent problems where you are asked to find the part. She will use both methods (the percent proportion and the percent equation) to solve the problems so that you can see how each of them work!

Solve Percent Problems, Part 3 (Find the Whole)

In this video, Mrs. Bebow will go through 4 examples on how to solve percent problems where you are asked to find the whole. She will use both methods (the percent proportion and the percent equation) to solve the problems so that you can see how each of them work! At the end of the video (approx. 7:14), you can try 6 questions on your own and then check your solutions.

How to Find the Percent

Video that explains how to find the percent.

Percent Proportion

Even more examples on how to set up a proportion to solve percent problems!

Percent Equation

Video that goes through how to use the percent equation to solve percent problems.

Lesson 2.1 - Percent of Change

Class Notes

Here are the Jamboard Slides with the class notes and examples!

Need some practice?

Lesson 2.1 - Percent of Change.pdf

Percent of Change, Part 1 (Percent of Increase)

In this video, Mrs. Bebow will explain how to set up a proportion to solve percent of change problems. Mrs. Bebow will go through 3 examples on finding the percent of increase.

Percent of Change, Part 2 (Percent of Decrease)

In this video, Mrs. Bebow will go through 2 examples on finding the percent of decrease by setting up a proportion.

Percent of Change, Part 3 (More Complicated Examples)

In this video, Mrs. Bebow will go through 2 examples on finding the percent of change that require a few more steps to solve. Examples include one where we have to convert units before we can find the percent change and one that involves having to calculate multiple percent of changes to find out final answer.

Finding the New Amount After a Percent Change

In this video, Mrs. Bebow will go through 4 examples on finding the new amount after a percent change. Includes examples that ask for the new amount after percent increase, percent decrease, markup, and markdown. A reminder of how to use the percent proportion and the percent equation is included in the first two examples.

Calculating Percent Change

Video that explains how to use a proportion or an equation/formula to calculate percent change.

Percents of Increase and Decrease

Video goes through several examples on calculating the percent of change, either an increase or decrease. Also includes an example of percent error!

Finding the New Value from a Percent Change

Video that explains two methods for finding the new value from a percent increase or decrease.

Lesson 2.2 - Tax

Class Notes

Here are the Jamboard Slides with the class notes and examples!

Lesson 2.2 - Tax.pdf

Tax, Part 1

In this video, Mrs. Bebow goes through 2 examples on solving percent problems that involve sales tax. She will show you how to use both the percent proportion and percent equation to solve these types of problems, and she will also show you how to solve tax problems in one step (instead of in two steps).

Tax, Part 2

In this video Mrs. Bebow goes through 3 examples on solving percent problems that involve tax. Two examples are on hotel tax, and she will show how to use the percent equation to solve the problems in one step as well as how to solve the problems in two steps. The last problem involves sales tax that is only applied to part of an order.

How to Calculate Sales Tax

Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with sales tax and final price. Mr. J will go through sales tax examples and explain the steps of how to calculate sales tax and final cost.

How to Calculate Sales Tax & Final Price

This video goes through two methods on how to find the final price after sales tax.

Lesson 2.3 - Tips & Markups

Class Notes

Here are the Jamboard Slides with the class notes and examples!

Lesson 2.3 - Tips & Markups.pdf

Tips & Markups, Part 1

In this video, Mrs. Bebow goes over important vocabulary words relating to tips and markups. She will also go through 4 examples on calculating the total bill with tip as well as calculating the selling price after a markup.

Tips & Markups, Part 2

In this video, Mrs. Bebow will go through 4 examples: two on find the percent of markup and two more complicated examples involving tips and markups.

How to Find Tip

This video explains how to find the amount of tip using proportions.

How to Find Percent Markup

This video goes through an example on where you need to find the percent of markup and an example on how to find the markup (or selling) price.

Markup, Selling Price, and Markup Rate

This video reviews what markups, markup rate (percent of markup), and markup price (selling price) are.

Lesson 2.4 - Discounts

Class Notes

Here are the Jamboard Slides with the class notes and examples!

Need some practice?

Percent of a Number: Tax, Discount, and More (IXL)

Lesson 2.4 - Discounts.pdf

Discounts, Part 1

In this video, Mrs. Bebow goes through 3 examples on calculating the price after a discount. Includes an example of how to find the sale price after multiple discounts.

Discounts, Part 2

In this video, Mrs. Bebow goes through 2 examples on calculating the ORIGINAL price BEFORE a discount.

Discounts Part 3

In this video, Mrs. Bebow goes through 2 examples that involve discounts but require more steps to solve the final problem.

How to Find Percent Markdown

This video goes through an example on where you need to find the percent of markdown (a.k.a. the percent discount) and an example on how to find the markdown/sale price.

Discount, Discount Rate, & Sale Price

This video reviews what discounts, discount rate (percent of discount), and sale price are.

Tax, Tip, & Discount

Videos that goes through and reviews tax, tip, and discounts. 6 examples total!

Lesson 2.5 - Simple Interest

Class Notes

Here are the Jamboard Slides with the class notes and examples!

Need some practice?

Simple Interest (IXL)

Lesson 2.5 - Simple Interest.pdf

Simple Interest, Part 1

In this video, Mrs. Bebow will go through vocabulary relating to simple interest and 4 examples on solving problems involving the simple interest formula, I=Prt.

Simple Interest, Part 2

In this video, Mrs. Bebow will go through several examples on solving problems involving simple interest (I=Prt). She will explain how to solve an example where you are asked to find the time (t), then you are given a chance to try 3 problems on your own (which she will also work through). The last example is a multi-step simple interest problem that also includes tax.

Simple Interest Formula, I = Prt

In this video, you will learn how to solve simple interest problems by using the formula I = PRT. This video goes over a few different word problem examples:

Find the simple interest earned after 3 years on $500 at an interest rate of 6%
Find the principal invested if $178 of interest was earned in 2 years at an interest rate of 4%
Find the rate if a principal of $8,200 earned $3,772 interest in 4 years

Simple Interest Formula

This math video tutorial explains how to use the simple interest formula to solve word problems. It explains how to calculate the interest earned over a period of time, how to calculate the annual interest rate percentage, and how to calculate the time or the number of years for a savings account to reach a certain value. It contains plenty of examples and practice problems!

Lesson 2.6 - Commission & Fees

Class Notes

Here are the Jamboard Slides with the class notes and examples!

Lesson 2.6 - Commission & Fees.pdf

Commission & Fees, Part 1

In this video, Mrs. Bebow will explain how to solve percent problems involving commission (see Part 2 for fees and more complicated commission problems). She will walk through 4 examples total, 2 where we have to find commission and 2 where we need to find the amount of sales.

Commission & Fees, Part 2

In this video, Mrs. Bebow explains how to solve percent problems involving fees and how to solve more complicated commission problems. She will walk through 4 examples total, 2 where we have to compare fees and 2 commission problems that require a few more steps to solve than the basic ones we saw in Part 1.

Lesson 2.7 - Percent Error

Class Notes

Here are the Jamboard Slides with the class notes and examples!

Need some practice?

Percent Error: Word Problems (IXL)

Lesson 2.7 - Percent Error.pdf

Percent Error

In this video, Mrs. Bebow goes through how to calculate percent error using a proportion. 5 examples total.

Percent Error Made Easy!

This video explains how to calculate the percent error of an experiment using an equation!

How to Find Percent Error

This video goes through one example on how to calculate the percent of error using an equation.

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