LibraryAddition FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaSum

14 + 16

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha30

14 + 16 = 30. Changing the order gives 16 + 14, 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. 33714 + 17RECALL
    31

    Mental addition

    Open this card ↗
  2. 33814 + 18RECALL
    32

    Mental addition

    Open this card ↗
  3. 33914 + 19RECALL
    33

    Mental addition

    Open this card ↗