Library›Mental Squares›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaSquare

20²

Think it. Then flip it. ahamoraTap to reveal Back to the cue
Math & LogicOne small aha
Your new aha400

20² means 20 × 20, which is 400. The exponent tells you how many copies to multiply. Source: Square (algebra) ↗

ahamoraReference ↗

Keep the thread going

One answer is a beginning.

Share a little curiosity, or follow it into the full collection.

Flip the full deck →

More from Mental Squares

A few more worth knowing.

  1. 2121²RECALL
  2. 2222²RECALL
  3. 2323²RECALL