77777^2-22222^2 = ?????????? (Yep, a 9-digit number). Try to solve this math puzzle spin on the classic a^2-b^2 = (a+b)(a-b) without a calculator: a pen and paper is all you need!
If you have any puzzle suggestions, please feel free to email them to us at: beatthecalculator@gmail.com
Math Exponent Puzzle | No calculator | Beat the Calculator
#exponents #mathpuzzle #mathpowers
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