Algebra 1 : How to add integers

Study concepts, example questions & explanations for Algebra 1

varsity tutors app store varsity tutors android store

Example Questions

Example Question #167 : Integer Operations

Possible Answers:

Correct answer:

Explanation:

Since  is greater than  and is negative, our answer is negative. We treat as a normal subtraction. Answer is .

Example Question #41 : How To Add Integers

Possible Answers:

Correct answer:

Explanation:

When adding with another negative number, just treat as an addition problem and then add a negative sign in front. Our answer is .

Example Question #42 : How To Add Integers

Possible Answers:

Correct answer:

Explanation:

When adding with another negative number, just treat as an addition problem and then add a negative sign in front. Answer is .

Example Question #170 : Real Numbers

Add the following two integers:

 and 

Possible Answers:

Correct answer:

Explanation:

We can look at the number line to help us understand adding integers. If we start at zero and move 3 integers to the left (negative) we will be at -3.

N2

Now we will add 5 to this. We will move over to the right (positive) 5 integers.

N3

And we end up at 2, which is the answer. We are adding both numbers but one of them happens to be a negative number. Because of the communtative property of addition it is possible to start with 5 and add -3.

M1

M3

and we still end up at 2.

Example Question #43 : How To Add Integers

Add:   

Possible Answers:

Correct answer:

Explanation:

Add the ones place.

Add the tens place.

Combine the tens and ones places.

The answer is .

Example Question #45 : How To Add Integers

Add .

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Since this number is ten or more, the tens place will be the carryover.

Add tens place with the carryover.

The tens place will be the carryover.

Add the hundreds place with the carryover.

The thousands digit is , the hundreds digit is , the tens digit is , and the ones digit is .

The answer is:  

Example Question #44 : How To Add Integers

Evaluate:

Possible Answers:

Correct answer:

Explanation:

There are many ways to think about solving integer equatons. This one is equivalent to , which equals .

Example Question #47 : How To Add Integers

Add:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

The five is the ones place of the final answer.  Since this number is ten or greater, the tens digit will be the carryover.

Add the tens digit with the carryover.

Combine the numbers.

The answer is:  

Example Question #173 : Integer Operations

Add:  

Possible Answers:

Correct answer:

Explanation:

Add the ones digits.

Add the tens digits.

Because this number is ten or greater, carry over the one from the tens place.

Add the hundreds digits with the carryover.  The hundreds digit of the 48 is zero.

Combine the numbers.

The answer is .

Example Question #45 : How To Add Integers

Find the sum of seven hundred and fifty-six.

 

Possible Answers:

Correct answer:

Explanation:

Find the sum of seven hundred and fifty-six.

Begin by recalling what sum means. 

Sum means addition, so we need to add:

Now, because we hav 0's in our ones and tens places, we can simply tack on the 56 to get

Learning Tools by Varsity Tutors