Grade 1 · Math · Addition & Subtraction

Operation Gearworks

Choose the operation that makes each number machine work.

OPERATION ORDER

Which gear makes the equation true?

1/5

3?47

Choose the operation gear that reaches the target.

An operation describes the change from a starting number to a result. Addition increases a positive starting amount; subtraction removes an amount.

To turn 12 and a change of 5 into 7, use subtraction: 12 − 5 = 7.

Try the proposed operation and check that its result matches the target.

A free Grade 1 math game for practicing identifying a missing addition or subtraction operation. No account or download is needed.

Learning area: Adding & subtracting · Choosing Addition or Subtraction.

Difficulty: 3 · Challenge within Grade 1. Combine ideas, remember more information or solve several steps.

Read a start number, change amount, and target result, then insert the plus or minus gear that makes the visible equation true and runs the machine.

Choose an activity that fits your learner. Grade labels are a guide; adults can help with the instructions.