Simple Interest
Compound Interest
Facts about simple and compound interest
Extra Challenge
*Double points*
Random
100

I have invested $34,000 at 4% for 3 years. What is the total amount of my account worth?

$38,192

100

I have borrowed $1,240 at 8% compounded annually for 2 years. What is my total payback amount?

$1,446.34

100

What are the formulas for simple and compound interest?

I=prt

A=p(1+r)t

100

If you deposited $500 for four years at 6% annual interest, compounded annually, and you deposited the same amount in a simple interest account, which account would have more money and how much would the difference be?

Compound interest: $11.24 more

100

What does the I stand for in the equation I=PRT?

What is Interestz

200

What is the amount of interest gained on this investment:

$14,000 at 6% for 9 years

$7,560

200

What is the total amount for an investment of $1,500 at 7% compounded annually for 3 years

$1,837.56

200

What do each of the following variables mean in the formulas?

I, A, p, r, t

Interest, Total, principal, rate, time

200

Anne deposited $600 in an account that earns 6% simple annual interest. Shelly deposited $400 in an account that earns 6% annual interest compounded annually. They leave the money in the account for 4 years. Which will have more money in their account? How much more money will they have?

Anne will have more money. She will have $239 more than Shelly

200

What does the P stand for in both the equations?

I= prt       Or   A=p(1+r)^n

What is principal.

300

Find the amount of interest if $1,000 is deposited for one year at 5% simple interest.

$50

300

What is the amount of interest gained on the following investment:

$55,000 at 16% compounded annually for 2 years

$19,008

300

What does the simple interest formula give you?

Interest

300

Which account should they choose to invest your $300 for 5 years.

 ● Account A earns 5% simple interest per year.

 ● Account B earns 5% interest compounded annually.

b. How much more do they earn by choosing the better account?

Account B will earn $7.88 more

300

What does the r stand for in the following equations ?

I=prt       Or     A=p(1+r)^t

What is the annual interest rate.

(percent represented as a decimal)
400

At the end of one year, what would the total balance on a principal of $500 at 4% simple interest

$520

400

What is the amount of interest gained on the following investment:

$21,000 at 13.6% compounded annually for 4 years

$13,973

400

What does the Compound interest formula give you?

Total amount/account balance

400

Your account balance is $33,297.30. The bank gave you a 7.9% interest compounded annually for 2 years. What was the original amount invested?

$28,600

400

What does n stand for in the equation given?

A=p(1+r)^t

What is time in years . 

500

I start with $210 at 8% for 7 years. What is the balance in my account?

$327.60

500

What is the amount of interest gained on this loan:

$130 at 9.4% compounded annually for 2 years

$25.59

500

Explain for both simple and compound interest: How do you know when you need to do an extra step of either adding or subtracting?

Simple: gives interest, so if it is asking for total you add.

Compound: gives total, so if it is asking for interest you subtract

500

If you invested $20,600 in an account that earns simple interest and it grew to $23,896 in 2 years, what was the interest rate given by the bank?

8%

500

What does the A stand for in the following equation?

A=p(1+r)^t

What is the total amount owed or paid at the end of the investment period.

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