Library›Multiplication Fluency›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaProduct

5 × 7

Think it. Then flip it. ahamoraTap to reveal Back to the cue
Math & LogicOne small aha
Your new aha35

5 groups of 7 make 35. Reversing the factors, 7 × 5, 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. 645 × 8RECALL
    40

    Mental multiplication

    Open this card ↗
  2. 655 × 9RECALL
    45

    Mental multiplication

    Open this card ↗
  3. 665 × 10RECALL
    50

    Mental multiplication

    Open this card ↗