Worksheet: Subtracting by Counting Back: Numbers up to 20

In this worksheet, we will practice subtracting within 20 by counting back from the starting number.


On this domino, the dots on one side are covered with a sticker, and the total number of dots is written above it.

How many dots are under the sticker on this domino?


Michael holds up 9 fingers and starts counting down as he puts down one finger at a time. He stops when he is holding up 4 fingers.

Decide whether he was adding or subtracting by picking the number sentence that describes what he did.

  • A 5 + 4 = 9
  • B 9 5 = 4
  • C 9 + 4 = 1 3


Isabella put her counter on 12 then moved it back 2 spaces.

Help her find the missing number:


This is a subtraction machine.

It subtracts 3 from any number you put in.

What number will come out if you put 8 in?

What number will come out if you put 11 in?

What number will come out if you put 19 in?

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