Basic Arithmetic : Addition and Subtraction with Money

Study concepts, example questions & explanations for Basic Arithmetic

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Example Questions

Example Question #15 : Money And Time

Henry had $538.23 in his checking account at the bank before he went shopping. At the mall, he spent $43.91 at one store and $71.84 at another store. How much money does Henry have left in his bank account?

Possible Answers:

$423.52

$423.48

$422.48

$422.84

Correct answer:

$422.48

Explanation:

To find the difference, you must subtract. But first you must add the two amounts he spent at the mall:

 

 

Now subtract. Line up the numbers vertically. Remember to use the rules of borrowing to subtract.

 


Henry now has $422.48 in his bank account.

Example Question #3 : How To Subtract

Mark went to the grocery store to buy ingredients to make a cake. He bought eggs for $2.99, flour for $4.99, sugar for $3.99, and butter for $2.50. If he paid the cashier with a $20 bill, how much money did he recieve in change?

Possible Answers:

Correct answer:

Explanation:

Since the question is asking how much money did Mark have left over, we need to subtract the cost of each item he bought from $20.

There are two ways of solving this problem:

  • We can add up the cost of all the ingredients and then subtract the total cost from $20.00

  • We can subtract the cost of each item from $20.00. Note, if we choose to solve the problem this way, we must follow order of operations and go from left to right     

Example Question #16 : Money And Time

Sally bought 3 different picture frames and paid a total of $60. If the first frame cost $15 and the second frame cost $25, how much did the third frame cost?

Possible Answers:

Correct answer:

Explanation:

In order to find out how much the third frame costs, we need to subtract the cost of the first two frames ($15 and $25) from the total amount ($60).

There are two ways to subtract the cost of the first two frames from the total amount:

Method 1

We can subtract the total amount spent on the first two frames from $60

                                                      

Remember to follow Order of Operations (PEMDAS) and add the numbers in parenthesis first.

The cost of the third frame was $20

Method 2

We can subtract the cost of each frame from $60

The cost of the third frame was $20

Example Question #17 : Money And Time

Larry owes Jon $5.75. If Larry gives Jon a $10 bill and Jon gives him change in quarters, how many quarters does Jon give to Larry?

Possible Answers:

Correct answer:

Explanation:

If Larry gives Jon a $10 bill to pay him back for $5.75, Jon will need to give Larry back .

If Jon gives the change in quarters, he will give him  quarters.

 

 

Example Question #151 : Basic Arithmetic

If Betty has  in her wallet and buys a sandwich that costs , how much money will she have left in her wallet, in dollars?

Possible Answers:

Correct answer:

Explanation:

If Betty has  in her wallet and buys a sandwich that costs , the best way to determine how much money is left in her wallet is to subtract  from

An easy way to do this is to first subtract  and . This results in: 

Next,  should be subtracted from . This results in: 

Therefore, Betty will have  left in her wallet. 

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