HundredBoxes

100 calculations100 calculation : Method of learning through repetition , which involves multiplying and other calculations carried out on a 10-by-10 grid of numbers.In your some free time, enjoy 100 calculations.Try it to improve your calculation skill, of for brain training, brain anti-aging, or killing time!There are rankings for each calculation, so that you can compete with people all over the world!Currently, this app is being implementedAdditionSubtractionMultiplicationAddition(2 digits)Subtraction(2 digits)RemainderIf there are some bugs or mistranslations in my app, please send me an e-mail.