Library›Multiplication Fluency›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaProduct

16 × 13

Think it. Then flip it. ahamoraTap to reveal Back to the cue
Math & LogicOne small aha
Your new aha208

16 groups of 13 make 208. Reversing the factors, 13 × 16, 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. 27916 × 14RECALL
    224

    Mental multiplication

    Open this card ↗
  2. 28016 × 15RECALL
    240

    Mental multiplication

    Open this card ↗
  3. 28116 × 16RECALL
    256

    Mental multiplication

    Open this card ↗