LibraryMultiplication FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaProduct

7 × 15

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha105

7 groups of 15 make 105. Reversing the factors, 15 × 7, 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. 1107 × 16RECALL
    112

    Mental multiplication

    Open this card ↗
  2. 1117 × 17RECALL
    119

    Mental multiplication

    Open this card ↗
  3. 1127 × 18RECALL
    126

    Mental multiplication

    Open this card ↗