Adding Four Two Digit Numbers
 What Is Adding Four TwoDigit Numbers?
 Solving Addition Problems with Four TwoDigit Numbers – Example
 Solving Addition Problems with Four TwoDigit Numbers – Practice
 Solving Addition Problems with Four TwoDigit Numbers – Summary
 Solving Addition Problems with Four TwoDigit Numbers – Frequently Asked Questions
Basics on the topic Adding Four Two Digit Numbers
Adding Four TwoDigit Numbers – Introduction
Mr. Squeaks has been trying to fly. He built a plane, but it didn't quite work. Now, he's hoping that it might work if he tries a kite! But, he needs to add all the fabric pieces together and needs to figure out how. We can help him by learning about adding four twodigit numbers.
What Is Adding Four TwoDigit Numbers?
Adding four twodigit numbers involves writing all the numbers in a column, adding the ones place digits together, and then adding the tens place digits together. This strategy helps in managing larger sums by breaking them down into simpler steps.
Here are the steps to tackle adding four twodigit numbers:
Step #  Action 

1  Write all of the addends in a column vertically. 
2  Add all of the ones place numbers together. 
3  Add all of the tens place numbers together. 
4  The number under the line is the answer. 
5  Check your answer to ensure it makes sense with the problem. 
Let's practice understanding this method with a few examples.
Solving Addition Problems with Four TwoDigit Numbers – Example
Example 1:
Mr. Squeaks is adding four pieces of fabric with different measurements: 21 + 10 + 21 + 12.
Steps to Solve the Problem:
Step #  Action 

1  Write all of the addends in a column vertically: 
21  
10  
21  
12  
2  Add the ones place numbers: 1 + 0 + 1 + 2 = 4. 
3  Add the tens place numbers: 2 + 1 + 2 + 1 = 6. 
4  Combine to get the answer: 64. 
Mr. Squeaks' final measurement is 64.
Example 2:
Mr. Squeaks is adding more fabric: 10 + 26 + 32 + 11.
Steps to Solve the Problem:
Step #  Action 

1  Write all of the addends in a column vertically: 
10  
26  
32  
11  
2  Add the ones place numbers: 0 + 6 + 2 + 1 = 9. 
3  Add the tens place numbers: 1 + 2 + 3 + 1 = 7. 
4  Combine to get the answer: 79. 
Mr. Squeaks has 79 pieces of fabric.
Example 3:
Mr. Squeaks needs more fabric: 22 + 13 + 40 + 24.
Steps to Solve the Problem:
Step #  Action 

1  Write all of the addends in a column vertically: 
22  
13  
40  
24  
2  Add the ones place numbers: 2 + 3 + 0 + 4 = 9. 
3  Add the tens place numbers: 2 + 1 + 4 + 2 = 9. 
4  Combine to get the answer: 99. 
Mr. Squeaks has 99 pieces of fabric.
Solving Addition Problems with Four TwoDigit Numbers – Practice
Now, let's put your skills to the test. Solve these problems on your own, and check the solutions when you're ready!
Solving Addition Problems with Four TwoDigit Numbers – Summary
Key Learnings from this Text:
 Solving problems with four twodigit numbers can be achieved by following these steps:
Step #  Action 

1  Write all of the addends in a column vertically. 
2  Add all of the ones place numbers together. 
3  Add all of the tens place numbers together. 
4  The number under the line is the answer. 
5  Check your answer to ensure it makes sense with the problem. 
 Mastering the addition of multiple addends is an important math skill.
Keep practicing these steps, and you'll become a pro at adding multiple twodigit numbers! Check out more fun math challenges and exercises on our website to continue sharpening your skills.
Solving Addition Problems with Four TwoDigit Numbers – Frequently Asked Questions
Transcript Adding Four Two Digit Numbers
Mr. Squeaks has been trying and trying to fly. He built a plane, but it didn't quite work. He's hoping that if he tries a kite, it might work! But, he needs to add all of the fabric pieces together and isn't sure how. We can help him by learning about 'Adding Four TwoDigit Numbers' You might know about math expressions that use two addends, such as twentytwo plus ten or adding three addends, such as twentytwo plus ten plus seven. So, what happens when there are four addends? Today we will learn about a strategy to add four addends. When adding four addends, start by writing all of the addends in a column vertically. Next, add all of the ones place numbers together, these are the numbers on the right. Then; add all of the tens place numbers together, these are the numbers on the left. Finally, the number under the line is the answer! We need to help our furry friend add four addends together. Mr. Squeaks is first adding four pieces of fabric with different measurements. He is adding twentyone plus ten, plus twentyone, plus twelve. Remember, we can start by writing all of the addends in a column vertically like this. Next, we can add all of the ones place numbers. One plus zero plus one plus two equals four! Then, we can add all of the tens place numbers. Two plus one plus two plus one equals six! Finally, the number under the line is the answer! That means that Mr. Squeaks' final measurement is sixtyfour. That measurement was too small for our friend, so he needs to add again using new fabric. If he adds ten plus twentysix, plus thirtytwo, plus eleven, how much fabric will he have? Start by writing all of the addends in a column vertically, like this. Then, add all of the ones place numbers. What is zero plus six, plus two, plus one? Nine! Next, add all of the tens place numbers. What is one plus two, plus three, plus one? Seven! Finally, the number under the line is the answer! That means that Mr. Squeaks has seventynine pieces of fabric. This fabric was still too small for our furry friend, let's try one last time. This time we need to add twentytwo plus thirteen, plus forty, plus twentyfour. First, we can write all of the numbers vertically. Then, we need to add all of the ones numbers. After that, we need to add all of the tens numbers. Finally, the number under the line is the answer! How many pieces of fabric does Mr. Squeaks have? He has ninetynine pieces of fabric! Before we see if Mr. Squeaks finally got to fly, let's remember. When adding four twodigit addends, start by writing all of the addends in a column vertically. Next, add all of the ones place numbers together. Then, add all of the tens place numbers together. Finally, the number under the line is the answer! Now, did Mr. Squeaks Finally fly? : "I'm flying! I'm flying! I'm falling!" : "That was close, thanks, Imani!
Adding Four Two Digit Numbers exercise

How much fabric does Mr Squeaks have?
HintsStart by adding the numbers in the ones column.
Once you have added the numbers in the ones column, add the numbers in the tens column.
Solution13 + 23 + 31 + 30 = 97
First add the ones:
 3 + 3 + 1 + 0 = 7
 1 + 2 + 3 + 3 = 9

How many pieces of wood does Mr Squeaks have?
HintsFind the numbers you are adding together and write out a column addition vertically to help you add.
Here we can see the numbers written vertically.
Add the ones and then add the tens.
SolutionMr Squeaks has 79 pieces of wood.
First add the ones:
 4 + 1 + 0 + 4 = 9
 1 + 2 + 1 + 3 = 7

Can you solve the addition number sentences?
HintsWrite out each addition problem in a column to help you.
You can use this image to help you solve the first problem.
Add the ones and then add the tens.
Solution20 + 40 + 17 + 12 = 89
The image above shows us how we can solve this using column addition.
First add the ones:
 0 + 0 + 7 + 2 = 9
 2 + 4 + 1 + 1 = 8
_____________________________________________________
 10 + 11 + 26 + 31 = 78
 51 + 16 + 11 + 21 = 99
 33 + 22 + 14 + 10 = 79

How many tools does Mr Squeaks have?
HintsFind the four numbers you are adding together.
Write out a column addition to help you to solve.
Add the ones and then add the tens.
SolutionTo solve the problem, add 12 (hammers), 34 (screwdrivers), 41 (pliers) and 11 (saws).
12 + 34 + 41 + 11 = 98
First add the ones:
 2 + 4 + 1 + 1 = 8
 1 + 3 + 4 + 1 = 9

How many bolts does Mr Squeaks have?
HintsStart by adding the numbers in the ones column.
Once you have added the numbers in the ones column, add the numbers in the tens column.
Solution25 + 20 + 11 + 32 = 88
First add the ones:
 5 + 0 + 1 + 2 = 8
 2 + 2 + 1 + 3 = 8

Can you help Mr Squeaks?
HintsFor the first two problems, create a column addition. Add the ones and then add the tens.
For the final problem, find out the total number of bananas and then add the four numbers together to find out how many pieces of fruit there are altogether.
Solution1.) Mr Squeaks is making snowballs. The first pile had 15 snowballs, the second had 13, the third had 40 and then the fourth had 20. Altogether, Mr Squeaks has made 88 snowballs.
 15 + 13 + 40 + 20 = 88
 10 + 50 + 16 + 22 = 98
 Find the total number of bananas: 2 x 5 = 10
 Add 31 + 10 + 41 + 14 = 96
Order in Adding
Using Make Ten to Add
Compensation in Addition
Compensation in Addition — Let's Practice!
Subtract Using Addition — Let's Practice!
Make a Number Line to Add — Let's Practice!
Adding Four Two Digit Numbers
Using Place Value to Subtract (Regrouping)
Using Place Value to Add Two Digit Numbers (No Regouping)