Figure
It
Out
More fun!
Grab Bag
100

Principal $50, Rate 2.5%, Time 4 years. What is the interest?

What is $5

100

Principal $25, Rate 120%, Time 4 months. What is the interest?

What is $10

100

Principal $10, Rate 400%, Time 1 year. What is the interest?

What is $40

100

This is how you would write 3 months for the time, simplified.

What is 1/4

100
Time is always written in this.
What are years?
200

Joanne borrowed $450 at a simple interest rate of 8% for 7 years. How much interest will Kristen pay?

$252

200

Kristen borrowed $700 at a simple interest rate of 15% for 3 years. How much interest will Kristen pay?

What is $315

200

Malanda borrowed $57 at a simple interest rate of 3% for 2 years. How much interest will Malanda pay?

What is $3.42

200

This is how you could right 7 months for the time.

What is 7/12

200
The original amount of a loan or deposit.
What is principal?
300

Maria put $500 into a savings account. She made no more deposits or withdrawals. The account earns 2% simple interest per year. How much money will be in the account after 5 years?

What is $550

300

Ana earns 2.5% simple interest on $2000 in her savings account. She does not make any deposits or withdrawals. After 3 years, how much interest will Ana have earned on her savings account?

What is $150

300

Laura borrowed $175,000 at a rate of 5% simple interest for 15 years. How much interest will Laura pay?

What is $131,250

300

Mr. Jenkins borrowed $600 at a simple interest rate of 4%. He wants to repay the loan in 3 years. What is the total amount that Mr. Jenkins will repay?

What is $672

300
The percent of the interest is known as this.
What is rate?
400

Mike put $3000 in a savings account at a simple interest rate of 4%. If Mike does not add or remove any money from the savings account, how much money will Mike have in his account after 8 years?

What is $3960

400

Antwan put $1000 into a savings account. He made no more deposits or withdrawals. The account earns 2.5% simple interest per year. How much money will be in the account after 4 years?

What is $1100

400

Amy put $40 into a savings account. She made no more deposits or withdrawals. The account earns 2% simple interest per year. How much money will be in the account after 35 years?

What is $68.

400

Alexis put $43,000 into a savings account. She made no more deposits or withdrawals. The account earns 1.2% simple interest per year. How much money will be in the account after 5 years?

What is $45,580

400
A percent can be converted to this.
What is a decimal?
500

John had $2000. He deposited 40% of the money into a simple interest account. The account has a 6% annual interest rate. How much interest has he earned on this deposit at the end of six months?

What is $24

500

Hilda starts the year with $80. Her parents give her 10% of $80 each month for a year. Hilda does not spend or receive any additional money during the year. How much money does Hilda have at the end of 1 year?

What is $176

500

Hannah borrowed $2000 from a bank. She agreed to pay back the bank $2180 after 2 years. What was the simple interest rate of the loan?

What is 4.5%

500

An account earned $143.86 in simple interest over 4 years and 3 months. There were no deposits or withdrawals on the account. The interest rate is 0.25%. What was the principal for this account?

What is $14,386

500
This is the formula for simple interest.
What is I=PRT?