How fast can you add?
The program lists some single-digit numbers. Add them up and enter the answers. If your answers are not correct you have to add the particular list again. A score is given at the end. If it is a high score, it is recorded. The score is based on accuracy and speed. Any score around 100 is a good score. With practice it is possible to score higher than 100. My score is 133. My late father taught me a way to add fast. With practice, you’ll discover it yourself.
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