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Conversions
Percents
Tip, Tax, Discount
Model This
Mixed Bag
100

Convert 1/3 to a decimal.

What is 0.333 (bar notation)

100

1% of 100.

What is 1

100
What is the total including tip of a meal that costs $13. You pay a 20% tip.
$15.60
100

A green sea turtle sanctuary had 180 turtles come ashore to lay eggs last year.  This year, the number of turtles increased by 10%. 

How many turtles came ashore to lay eggs this year?

198 green sea turtles

100

A circle has a diameter of 4 inches.  What is it's circumference (approximately).

Circumference is approximately 12 inches (12.56 inches).
200
How do you convert a percent to a decimal?
What is move the decimal to the left two places.
200
300% of 12
What is 36?
200
Mr. McMorris bought a new iPad for $950.13. Tax on the iPad is 11%. What is the cost with tax?
$1,054.50
200

At another green sea turtle sanctuary, the number of nesting turtles decreased by 10%.  This year there were 234 nesting turtles.  

How many nesting turtles were there at the sanctuary last year?

260 green sea turtles

200

This is Mr. Girouard's favorite color.

Purple.

300
Convert 23% to a decimal.
What is 0.23
300

14% of 32

What is 4.48

300

Benjamin Bannaker, the famous mathemetician, went out to a fancy dinner. The dinner cost $89.67. He tipped the waiter 20%. What was the total including tip?

$107.60

300

Tide claims that their new bottle of laundry soap holds 25% more soap.  If their original container held 56 fluid ounces of soap, how much does the new container hold?

70 fluid ounces

300

The number of fish in a lake decreased by 25% between last year and this year.  Last year there were 60 fish in the lake.  What is the population this year?

What is 45 fish.

400

Convert 124% to a decimal.

What is 1.24

400

19 is what percent of 20?

What is 95%

400

Sales tax in Vermont is 6%. 

You are shopping for a new pair of shoes.  They cost $45.  You have $50 saved from your birthday.  Do you have enough to buy the shoes?

Yes.  The shoes will cost $47.70 with tax.  You will have $2.30 in change.

400
Last week, the price of oranges at the farmer's market was $1.75 per pound. This week, the price decreased by 20%.  What is the price of oranges this week?
What is $1.40.
400

A circle's circumference is 600 m.  What is it's area?

What is 28,637 m^2 (about 30,000 m^2)

500

Convert 2/3 to a percent.

What is 66.6 (bar notation) or 67%

500

48 is what percent of 16

What is 300%

500

You are shopping and have a 20% off coupon. 

The shirt you want to buy costs $32, but it is on sale for 15% off.

How much do you end up buying the shirt for (before tax)?

What is $21.76

500

The number of miles driven this month was a 30% decrease of the number of miles driven last month.

Model

500

The equation d = 3t represents a certain snail's distance (d) in inches from a rock after time (t) in minutes.  What does the 3 represent?

The snail travels at 3 inches per minute.