LibrarySubtraction FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaDifference

25 − 17

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha8

25 − 17 = 8. The difference tells you the gap between 17 and 25. 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. 33525 − 16RECALL
    9

    Mental subtraction

    Open this card ↗
  2. 33625 − 15RECALL
    10

    Mental subtraction

    Open this card ↗
  3. 33725 − 14RECALL
    11

    Mental subtraction

    Open this card ↗