If only you could keep better track of big numbers, adding and multiplying your head wouldn’t be such a problem! But fear not… I have a trick that might be just the ticket for your brain!
Use this secret phonetic math code to code and decode sentences into numbers. Developed over a hundred years ago, this is the code that the expert mathematicians use when doing large calculations in their head. This is exactly how Arthur Benjamin squares 5-digit numbers without a calculator!
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