Adding Double and Triple Digits Worksheets
Like every other mathematical tool, addition is also done under the predefined math rules. Whether you are adding two singledigit numbers, double digits, or triple digits, it doesn’t matter. In all cases, the rules for addition are common. It is just that the complexity increases as the number of digits increase. But there is no need to worry as addition is a systematic process, and if it is done very carefully, the risk of errors can be minimized. Adding a doubledigit or tripledigit number involves a stepbystep process. First, you have to write each digit under its corresponding digit of the other number and then add them and write their answers tight below them. If the answer is a singledigit number, then just write that. If the answer is a doubledigit number, then write the right digit in the answer section, carry the answer’s left digit to the top of the next column that you need to solve. This is the technique of adding two numbers regardless of the number of digits they have.

Basic Lesson
Demonstrates how to add ones, tens, hundreds, and thousands columns. Includes practice problems.
View worksheet 
Intermediate Lesson
Demonstrates how to add ones, tens, hundreds, and thousands columns. Includes practice problems.
View worksheet 
Independent Practice 1
Contains 16 double and triple digit addition problems. The answers can be found below.
View worksheet 
Independent Practice 2
Contains 16 double and triple digit addition problems. The answer key is below.
View worksheet 
Adding DoubleTriple Digits Homework
13 double and triple digit addition problems. A series of partial and complete examples are provided.
View worksheet 
Adding DoubleTriple Digits Quiz
10 Double and Triple Digit Addition problems. Scoring matrix.
View worksheet
A cheesy attempt at an addition joke:
Why is 2 + 2 = 5 like wearing your pants on your head? Because it's not right!