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Grade 1 Subtraction worksheets

Taking away within 10 and within 20, and finding a missing number whether the whole, the part removed or the difference is hidden.

How the skills build

Within 10 starts the sequence, within 20 raises the starting number, and Missing numbers asks children to work backward from the answer.

Using these worksheets

  • Homework

    One Standard sheet is a manageable evening of homework; pair it with the matching addition sheet to show that the two undo each other.

Related standards

  • 1.OA.C.6: Add and subtract within 20.
  • 1.OA.D.8: Find the unknown whole number in an addition or subtraction equation.

Common Core–informed practice; not a claim of official alignment.