Library›Addition Fluency›One card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaSum

3 + 14

Think it. Then flip it. ahamoraTap to reveal Back to the cue
Math & LogicOne small aha
Your new aha17

3 + 14 = 17. Changing the order gives 14 + 3, the same sum. Source: Addition ↗

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 Addition Fluency

A few more worth knowing.

  1. 693 + 15RECALL
    18

    Mental addition

    Open this card ↗
  2. 703 + 16RECALL
    19

    Mental addition

    Open this card ↗
  3. 714 + 6RECALL
    10

    Mental addition

    Open this card ↗