A LITTLE SOMETHING WORTH KNOWING
A small discovery. Yours to pass on.
Math & LogicOne small ahaSum9 + 9
Think it. Then flip it.✳ ahamoraTap to reveal ↻Back to the cue ↶
Math & LogicOne small aha
Your new aha18
✳ ahamoraReference ↗9 + 9 = 18. Changing the order gives 9 + 9, the same sum. Source: Addition ↗