LibrarySubtraction FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaDifference

24 − 1

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha23

24 − 1 = 23. The difference tells you the gap between 1 and 24. Source: Subtraction

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 Subtraction Fluency

A few more worth knowing.

  1. 32524 − 0RECALL
    24

    Mental subtraction

    Open this card ↗
  2. 32625 − 25RECALL
    0

    Mental subtraction

    Open this card ↗
  3. 32725 − 24RECALL
    1

    Mental subtraction

    Open this card ↗