Finding percent of a number
Find the whole
Percent change
Percent Error
Simple interest
100
15% of 60

What is 9?

100

30 is 60%

What is 50?

100

40$-> 50$

What is 25% increase

100

120 students estimate: 100 students exact

What is 20% error?

100

A bank pays 3% simple interest for 3 years on a deposit of $1,500

What is $135

200

40% of 250

What is 100?

200

12 is 25% 

What is 48?

200

25$-> 20$ 

What is 20% decrease?

200

20 cm estimate: 18 cm exact

What is about 11% error

200

A bank pays 3.5% simple interest for 4 years on a deposit of $2,000

What is $280?

300

12% of 90

What is 10.8

300

12.5 is 5%

What is 250?

300

800 cookies -> 1,000 cookies

What is 25% decrease?
300

Estimated 80 points: Exact 50 points

What is 60% error?
300

A bank pays 5% simple interest for 12 years on a deposit of $500

What is $300?