A LITTLE SOMETHING WORTH KNOWING
A small discovery. Yours to pass on.
Math & LogicOne small ahaProduct3 × 5
Think it. Then flip it.✳ ahamoraTap to reveal ↻Back to the cue ↶
Math & LogicOne small aha
Your new aha15
✳ ahamoraReference ↗3 groups of 5 make 15. Reversing the factors, 5 × 3, gives the same product. Source: Multiplication table ↗