Show:
Percents / Decimals
Percent
Increase/Decrease
Writing Equations
Percent Change
Word Problems
100

What is 100% as a decimal?

1.00 (or equivalent)

100
A T shirt is 20% off. If it was originally $20, what is the price after the discount?

$16

100

85% of New England residents are Patriots fans. Write an equation to find the number of Patriots fans, f, when you know the number of residents, r.

f=0.85r

100

What is the percent change from 10 to 12?

20%

100

The original price of the sneakers was $80, and the same price was $72. What percent was the discount?

10% off

200

What is 45% as a decimal?

0.45

200

A 6% tax is added to each item. If a pizza was $12, what is the total after tax?

$12.72

200

30% of students wear glasses. Write an equation to find the number of students who wear glasses, g, when you know the total number of students, t.

g=0.30t

200

What is the percent change from 60 to 100?

66.67%

200

What are Miss Olson's dogs' names?

Luna and Kobey

300

What is 1.05 as a percent?

105%

300

What is the percent increase based on this equation: 

c=1.35b

35% increase

300

You have a 25% off coupon to Lecha. Write an equation to find the discounted price, d, when you have the original price, p.

d=0.75p

300

A new game was $120 the first day it was released, but now it's $110. What is the percent change?

8.3%

300

There was a 30% decrease in students in school on Friday. If there are normally 400 students, how many students were absent?

120

400

What is the percent after a 10% decrease, written as a decimal?

0.90

400

What is the percent decrease based on the following equation:

c=0.85b

15% decrease

400

The price of a car decreases by 5% each year. Write an equation to find the price of the car this year, t, when you know the price of the car last year, l. 

t=0.95l

400

You ordered 3 pounds of candy and only got 2.8 pounds. SCAM! 

What's the percent error?

400

The road trip was supposed to take 45 minutes but it ended up taking an hour! What is the percent error from the expected amount of time?

33.33%

500

25.9% as a decimal?

0.259

500

During this storm, snowfall increases by 8% each day. If 14 inches fell yesterday, how many inches will fall today? 

15.12 inches

500

The value of Google goes up by 19% each year. Write an equation to find the value of Google next year, n, when we know the value of Google this year, t.

n=1.19t

500

The foundation had a goal of raising $20,000, and ended up raising $32,560! What is the percent change between the goal and the actual amount?

62.8%

500
A local restaurant adds an automatic 18% tip. If your total with the tip was $120, what was the total before the tip?

$101.69