Percent Proportions
Percent Error
Percent Change
Simple Interest
Gabbi Trivia
100

Gabbi buys a dragon for $56 plus 6% tax. How much does she spend on a dragon? 

$59.36

100

Approximate Value: 135 L

Exact Value: 120 L

12.5%

100
1970's price of a penguin: $20,500

2022's price of a penguin: $30,500

What is the percent change of the price of a penguin? Round to the nearest percent.

49%

100

What is the interest earned on a principal deposit of $5,000 at a rate of 5% over 10 years? 

$2,500

100

What is Gabbi's favorite color?

Pink

200

Gabbi put her car up for sale. It was originally $10,000. She is selling it for 40% off the original price. How much is she selling it for?

$6,000

200

Approximate Value: 12m

Exact Value: 12.5m

4%

200
1970's price of a cup of coffee: $1.50

2022's price of a cup of coffee: $4.00

What is the percent change? Round to the nearest whole percent. 

167%

200

What is the interest earned over 4 years on a principal of $4,000 at a rate of 4%?

$640

200

What is Gabbi's cat's name?

Chomsky 

300

It costs Gabbi $9.30 to buy her lunch. She resells her lunch to a middle schooler, but marks the price up 50%. How much is she reselling her lunch for? 

$13.95

300

Approximate Value: 0.8kg

Exact Value: 1kg

20%

300

A giraffe cost $2,400 in 2016 and cost $2,600 in 2022. What was the percent change of the cost? Round to the nearest percent.

8%

300

If $1440 is earned on a principal amount over 12 years with an interest rate of 6%, what was the principal amount? 

$2000
300

Where did Gabbi go to college? BONUS 100 points: What other teacher also went to that school?

Vassar

400

To help a local charity, Gabbi decides to donate 10% of her allowance. She's so charitable. If Gabbi's allowance is $84.65, how much is she donating? 

$8.46

400

A box has 25 puppies. However, when Gabbi counted the puppies, she thought there were 28. Gabbi can't count. What is her percent error?

12%

400

A coat cost $400 in 2016 and cost $2000 in 2022. What was the percent change of the cost?

400%

400
How long (in years) would it take for a principal of $10,000 to earn $4,200 in interest at a rate of 3.5%?

12 years

400

What grade did Gabbi teach before she came here?

High school

500

Gabbi's family budgets $600 per month on groceries. If this is 15% of their budget, set up a proportion to find the whole budget.

15 over 100 equals 600 over x

500

A school has 480 hot lunches. The cafeteria staff counted that 504 lunches were handed out. What is the percent error?

5%

500

A student's allowance was $20 in 2016 and $32 in 2022. What was the percent change of the cost?

60%

500

How long (in months) would it take for a principal of $6,500 to earn $390 in interest at a rate of 1%?

6 years = 72 months

500

What does Gabbi teach during afternoon module?

Nothing!

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