LibraryAddition FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaSum

14 + 20

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha34

14 + 20 = 34. Changing the order gives 20 + 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. 34114 + 21RECALL
    35

    Mental addition

    Open this card ↗
  2. 34214 + 22RECALL
    36

    Mental addition

    Open this card ↗
  3. 34314 + 23RECALL
    37

    Mental addition

    Open this card ↗