Mental Math Part 3 - Adding Two-Digit Numbers

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This is part 3 of my Mental Math worksheets:

If you are a regular visitor of my website, you might know that I have developed a Mental Math mobile app. It is available on both Google Play Store and iOS App Store and it is 100% Free. I also publish video tutorials on the concepts and tricks taught in this app. Now, this app provides unlimited practice and you can practice even with a timer so you can easily become faster at mental math but I do know that some people like practicing on paper so this is why I started making these Mental Math worksheets.

These worksheets correspond to Class #5 of my Mental Math series on my YouTube Channel.

However, I have tried to make these worksheets independent of the tutorials by giving quite a lot of detail about the mental math tricks in them. I hope you like this effort. Have a look at my mental math app too where it all started 😀. 



The worksheets have a lot of questions for practice. I have explained two tricks to solve two-digit number addition sums in your brain. You can practice and discover which trick you are more comfortable doing. Happy Learning!

Download PDF

Part 1 Adding and Subtracting Single Digit Numbers

Part 2 Adding and Subtracting Single Digit Number from a Two-Digit Number

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