Simple Interest
Percentages
Using Percents
Discount, Mark up, Profit or loss
Grab Bag
100

What does "I" stand for in the interest formula?

Interest

100

Write 16% as a decimal

.16

100

10% of 100

10

100

What is 10% discount of $256?

$25.60

100

What does the "r" stand for in the I = Prt formula?

rate

200

What does "P" stand for in the Interest Formula

"P"

200

27% as a decimal

.27

200

26% of 200

52

200

What is the selling price after a mark-up of 20% of an original amount of $50?

$60

200

1/2 is that same as what percent?

50%

300
Find the interest

P = 10 r = 5% t = 2

1

300

8% as a decimal

.08

300

54% of 300

162

300

What is $125 as a percentage of $100?


125%

300

7 x 8 = ?

56

400

Find the interest

P = 125 r = 14% t = 3

52.5

400

891% as a decimal

8.91

400

25% of 280

70

400

What is the percentage profit/loss for

Original amount: $200, Selling price: $250


25% profit

400

a negative number times a negative number gives you a....

positive number

500

Find the interest

P = 1400 r = 26% t = 4

1456

500

0.9% as a decimal

.009

500

75% of 360

$270

500

What is the percentage profit/loss for

Original amount: $200, Selling price: $150


25% loss

500

What does BIMDAS stands for?

Order of operation

B=Brackets first

I=Indices

M/D= Multiplication or division from left to right whatever come first

A/S=Addition/Subtraction from left to right whatever come first

M
e
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