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A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaSum

17 + 21

Think it. Then flip it. ahamoraTap to reveal Back to the cue
Math & LogicOne small aha
Your new aha38

17 + 21 = 38. Changing the order gives 21 + 17, the same sum. Source: Addition ↗

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