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Free Online Addition Puzzles

The following addition puzzle will help to improve your mathematical and logical thinking skills.


Complete the sum by swapping the digits and change the cells to white. Sounds easy, but can get quite tricky especially at the higher levels. Test your skills with other players online.

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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