A LITTLE SOMETHING WORTH KNOWING
A small discovery. Yours to pass on.
Math & LogicOne small ahaProduct7 × 20
Think it. Then flip it.✳ ahamoraTap to reveal ↻Back to the cue ↶
Math & LogicOne small aha
Your new aha140
✳ ahamoraReference ↗7 groups of 20 make 140. Reversing the factors, 20 × 7, gives the same product. Source: Multiplication table ↗