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Subtraction — Missing Numbers Within 10 Worksheets for 1st Grade

Solve for the missing minuend or subtrahend, keeping every number within 10. 15 free printable worksheets, each with an answer key.

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Free Subtraction — Missing Numbers Within 10 Worksheets

Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.

Subtraction — Missing Numbers Within 10: what children learn

This is the same missing-number subtraction skill as the harder version, but every number stays within 10 — a gentler entry point before moving up to bigger numbers.

Subtraction — Missing Numbers Within 10: worked example

__ - 3 = 4 7

Think "what number, minus 3, leaves 4?" Since 4 + 3 = 7, the missing number is 7.

Subtraction — Missing Numbers Within 10: a common mistake to watch for

When the blank is the first number, kids sometimes subtract the two visible numbers instead of adding them — reinforcing the addition/subtraction connection helps here.

Subtraction — Missing Numbers Within 10: how to help at home or in class

Write small equations on sticky notes with one number replaced by a question mark, and let your child place the note on a number line or ten frame to figure it out. Ask which operation would help: if the start is missing, think about putting the pieces back together. Take turns writing puzzles for each other from a deck of cards. Once your child can solve the blank in any spot and check it, bring the same idea to numbers up to 20.

What is on these Subtraction — Missing Numbers Within 10 worksheets

This set has 15 different worksheets for 1st grade, with 23 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Find the missing number.”

Example questions like the ones on these worksheets, with their answers:

  • __ - 7 = 310
  • 6 - __ = 24
  • 10 - __ = 46
  • __ - 8 = 19
  • 9 - __ = 63
  • 5 - __ = 23
  • 8 - __ = 35
  • 3 - __ = 03

Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers

Related Subtraction worksheets for 1st grade

Single-Digit Subtraction
Basic subtraction facts within 10.
Subtract Whole Tens
Subtract multiples of ten from each other (e.g. 70 - 30).
Subtraction — Missing Numbers
Solve for the missing minuend or subtrahend in a subtraction sentence.
Fact Families
Given three related numbers, write all four addition and subtraction facts.
Subtract Within 20
Subtract two numbers where the larger number can be as high as 20.
Subtract Whole Tens — Missing Numbers
Solve for the missing minuend or subtrahend when every value is a whole ten.
All Subtraction worksheets
See every subtraction topic for 1st grade