Addition Math Speed Test (20 Problems) | Add Numbers Fast | Human Calculator Mental Maths Drill

⭐ Play Math Speed Test (FREE on iOS): https://apps.apple.com/app/id894239890

Are you a human calculator? Test your addition math speed. Add numbers as fast as you can in this mental maths drill.
20 arithmetic problems with 4 levels of difficulty.
Good luck and have fun!

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