Simple Interest
Compound Interest
Compound Interest
Word Problems
STAAR Questions
100

The interest earned for a deposit of $210 at 8% for 7 years.

What is $117.60?

100

The account balance for a deposit of $1,030 at 4% compounded annually for 2 years.

What is $1,114.05?

100

The account balance for a deposit of $7,300 at 7% compounded annually for 3 years.

What is $8,942.81?

100

Nancy Williams borrowed $4,325 to buy furniture for her office. The loan was for 6 months at an simple interest rate of 9%. The amount of interest Nancy paid.

What is $194.63?

100

A student's parents invested $5,000 in a college savings account that pays 4.85% annual simple interest. No additional deposits or withdrawals will be made. What is the amount of interest earned on the account at the end of 15 years?

$3,637.5

200

The interest earned for a deposit of $34,000 at 4% for 3 years.

What is $4080?

200

The account balance for a deposit of $1,240 at 8% compounded annually for 2 years

What is $1,446.34?

200

The account balance for a deposit of $1,500 at 7% compounded annually for 3 years.

What is $1,837.56?

200

Mary borrowed $12,354 to buy a car. The loan was for 3 year at an simple interest rate of 7.5%. The amount of interest Mary paid.

What is $2,779.65?

200

Fernando put $1,287 into a savings account 8 years ago. The account earns 4% simple interest. He made no additional deposits or withdrawals. Based on this information, what is the balance in Larry's savings account at the end of the 8 years?

$1698.84

300

The interest earned for a deposit of $4,000 at 3% for 48 months.

What is $480?

300

The account balance for a deposit of $12,700 at 8.8% compounded annually for 12 months.

What is $13,817.60?

300

The account balance for a deposit of $18,000 at 9% compounded annually for 72 months.

What is $30,187.80?

300

Kayla deposits $4,000 into a bank account that earns 3% simple interest. If she makes no deposits or withdrawals. The amount of money in the account at the end of 4 years. 

What is $4,480?

300

A business owner opens a new investment account with a $10,000 deposit. The investment account earns 2.5% interest, compounded annually. The business owner does not plan to make any deposits or withdrawals. How much interest will the investment earn at the end of the second year?

$506.25

400

The account balance for a deposit of $20,600 at 8% for 2 years.

What is $23,896?

400

The interest earned for a deposit of $28,600 at 7.9% compounded annually for 2 years.

What is $4,697.29?

400

The interest earned for a deposit of $55,000 at 16% compounded annually for 2 years

What is $19,008?

400

Larry invested $27,000 in a savings account that pays an annual interest rate of 1.8%. The savings account is set to compound annually. The account balance after 5 years.

What is $29,519.07?

400

Monica wants to open a savings account with a deposit of $3,000. Her bank offers two different savings accounts.

Account X pays 2.1% simple annual interest.

Account Y pays 2.4 % interest compounded annually.

Which account would she earn more interest and by how much?

Account Y: $62.70

500

The account balance for a deposit of $14,000 at 6% for 108 months.

What is $21,560?

500

The interest earned for a deposit of $130 at 9.4% compounded annually for 24 months.

What is $25.59?

500

The interest earned for a deposit of $21,000 at 13.6% compounded annually for 48 months.

What is $13,972.98?

500

You deposit $4500 at 5% annual interest compounded quarterly. The amount of interest that you will have earned after 120 months.

What is $2830.03?

500

Ben deposits $1,750 into each of two savings accounts.

Account I earns 2.75% annual simple interest.

Account II earns 2.75% interest compounded annually. 

What is the amount of the difference between the interest Ben will earn in Account I and II at the end of 2 years?

$1.32