How to make a calculator friendly:
Push these buttons on a calculator in EXACTLY this order:
2 x 2 x 2 x 2 = x 3 x 3 x 3 x 3 = - 2 - 3 - 2 = x 2 x 3 ÷ 100 ÷ 100 =
turn the calculator upside down and see what it says!
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