LibrarySubtraction FluencyOne card

A LITTLE SOMETHING WORTH KNOWING

A small discovery. Yours to pass on.

Math & LogicOne small ahaDifference

22 − 7

Think it. Then flip it.
ahamoraTap to reveal
Back to the cue
Math & LogicOne small aha
Your new aha15

22 − 7 = 15. The difference tells you the gap between 7 and 22. 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. 27022 − 6RECALL
    16

    Mental subtraction

    Open this card ↗
  2. 27122 − 5RECALL
    17

    Mental subtraction

    Open this card ↗
  3. 27222 − 4RECALL
    18

    Mental subtraction

    Open this card ↗