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More Grade 6 Math Lessons
Grade 6 Math Worksheets
There are two sets of Increase/Decrease of Number Percentage Worksheets:
Increase a Number by a Percentage
Decrease a Number by a Percentage
Examples, solutions, videos, and worksheets to help Grade 6 students learn how to decrease a number by a percentage. Include percentage word problems.
There are 3 sets of decrease a number by a percentage worksheets:
Method 1: Using the formula
In general, the formula for increasing a number by a percentage can be expressed as:
Increased Value = Original Number - (Original Number × Percentage Decimal)
Example: Decrease 80 by 25%.
Method 2: Using a Multiplier
The formula for increasing a number by a percentage using a multiplier can be expressed as:
Increased Value = Original Number × (1 - Percentage Decimal)
Example: Decrease 80 by 25%.
Using this multiplier approach can provide a quick and efficient way to calculate the decreased value of a number by a certain percentage. We can do step 2 in the head and use a calculator for step 3 if necessary.
Have a look at this video if you need to review how to decrease a number by a percent using both methods.
Click on the following worksheet to get a printable pdf document.
Scroll down the page for more Percentage Worksheets.
Printable
(Answers on the second page.)
Percent Worksheet #1 (easy percentages)
Percent Worksheet #2 (whole number percentages)
Percent Worksheet #3 (decimal number percentages)
Online or Interactive
Percentages (What is X% of Y)
Percentages (X is what % of Y)
Percentages (X is Y% of what)
Percent of a Number
Finding Percent
Finding the Base
Percent Word Problems (percent or rate)
Percent Word Problems (percent of or part)
Percent Word Problems (increase or decrease)
Percent Word Problems (profit or loss)
A store is having a sale with a 20% discount on all items. If a pair of shoes originally cost $80, what is the sale price?
$64
A company had 500 employees, but due to downsizing, it had to lay off 15% of its workforce. How many employees remain?
425
A smartphone’s price was reduced by 20% for a special promotion. If the original price was $600, what is the sale price?
$480
A restaurant reduced the salt content in its recipes by 30%. If a dish previously contained 800mg of salt, how much salt does it now contain?
560 mg
An investment portfolio decreased in value by 12% during a market downturn. If the initial value was $50,000, what is the new value?
$44,000
The attendance at a conference decreased by 8% compared to the previous year. If there were 800 attendees last year, how many attended this year?
736
A car’s fuel efficiency decreased by 15% after a modification. If the car previously achieved 40 miles per gallon, what is the new fuel efficiency?
34 miles per gallon
A bookstore had 1,000 books in stock, but due to sales, the inventory decreased by 20%. How many books are left in stock?
800
The price of a ticket to a concert was reduced by 50% for a limited-time offer. If the original price was $100, what is the discounted price?
$50
Percentage of a Number Lesson
Percent Word Problems
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