GED Math : Numbers and Operations

Study concepts, example questions & explanations for GED Math

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Example Questions

Example Question #43 : Addition And Subtraction

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Carry over the three, and add the tens digits.

Combine this number with the ones digit of the first number.

The answer is:  

Example Question #211 : Numbers And Operations

Add the numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Add the tens digits with the 2 as carryover.

Combine this number with the ones digit of the first number.

The answer is:  

Example Question #44 : Addition And Subtraction

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Carry over the one, and add the tens digits.

Combine this number and the ones digit of the first number.

The answer is:  

Example Question #45 : Addition And Subtraction

Add the numbers:   

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Add the ones digits and carryover the 2.

Combine this number with the ones digit of the first number.

The answer is:  

Example Question #211 : Numbers And Operations

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Carryover the one, and add the tens digits.

Combine this number with the ones digit of the first number.

The answer is:  

Example Question #51 : Basic Operations

Add the following numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Carryover the one and add all the tens digits.

Combine this number with the ones digit of the first number.

The answer is:  

Example Question #52 : Basic Operations

Add the numbers:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Carry over the one, and add the tens digits.

Combine this value with the ones digit of the first number.

The answer is:  

Example Question #212 : Numbers And Operations

Solve for 

Possible Answers:

Correct answer:

Explanation:

In order to solve for , we need to move the rest of the variables to the other side so that  is by itself.

Currently there are two other variables near  and . In order to solve the equation, we will need to move them to the other side with .

Let's start by subtracting  from both sides.

Now let's add  to both sides.

Because there are no numbers and that all of our variables are different we cannot do anything else to this equation. 

Our answer is 

Example Question #215 : Numbers And Operations

Complete the equation: 

Possible Answers:

Correct answer:

Explanation:

Addition is the combination of two numbers in order to create a bigger number.

Here we have  and  which are being added together, so let's take our  and count  numbers above it in order to see what our new number will be.

Now that we have counted  numbers above , we can see that our new number, when adding the two together, would be .

Our answer is .

Example Question #216 : Numbers And Operations

Solve this equation: 

Possible Answers:

Correct answer:

Explanation:

Since we are working with subtraction, that means that our final answer must be smaller than the largest number we're working with. We will take our  and go backwards  times.

If we count down from   times, we have .

Our answer is .

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