LibraryMultiplication FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaProduct

11 × 3

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha33

11 groups of 3 make 33. Reversing the factors, 3 × 11, gives the same product. Source: Multiplication table

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 Multiplication Fluency

A few more worth knowing.

  1. 17411 × 4RECALL
    44

    Mental multiplication

    Open this card ↗
  2. 17511 × 5RECALL
    55

    Mental multiplication

    Open this card ↗
  3. 17611 × 6RECALL
    66

    Mental multiplication

    Open this card ↗