LibraryMultiplication FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaProduct

16 × 9

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha144

16 groups of 9 make 144. Reversing the factors, 9 × 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. 27516 × 10RECALL
    160

    Mental multiplication

    Open this card ↗
  2. 27616 × 11RECALL
    176

    Mental multiplication

    Open this card ↗
  3. 27716 × 12RECALL
    192

    Mental multiplication

    Open this card ↗