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Adding 3-digit Numbers

Videos, stories and songs to help Grade 3 students learn how to add 3-digit numbers.

3-digit addition (using base 10 blocks & place value)

3-digit addition with carry (using base 10 blocks & place value)

Learn how to add 2- and 3-digit numbers.

Also learn how to check your answer using the inverse operation.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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