Find the Missing Number (1-Digit)
Browse 6 Find the Missing Number (1-Digit) worksheets for Grade 1 Math. These Subtraction worksheets are designed to give students targeted practice and build confidence in math.
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Whether you're a teacher looking for subtraction practice problems, a homeschool parent building a Grade 1 curriculum, or a tutor helping a student catch up, choose an available worksheet that matches what your student is practising.
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What to Do Next
Practice Questions
- 52 - ? = 45
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7
- ? - 5 = 38
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43
- 68 - ? = 59
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9
- ? - 4 = 67
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71
- 85 - ? = 77
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8
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Teacher Resources
Teaching Notes
Emphasize using inverse operations (addition) to solve for the missing subtrahend. Encourage students to check their answers by re-substituting the found number.
Vocabulary
Common Mistakes
- Confusing the operation; trying to add the minuend and the difference.
- Basic calculation errors when performing the inverse operation.
- Not checking the answer by re-substituting the found number into the equation.
Differentiation
Discussion Questions
- How can addition help us solve subtraction problems?
- What strategies did you use to find the missing number?
- How do you know your answer is correct?
- Can you explain 'working backward' in your own words?
Extension Activities
- Create missing number problems.
- Use objects to show subtraction.
- Play math fact games.
Parent Tip
Ask your child to tell a story about taking items away.
Learning Path
Skill Cluster
Number Sense & Algebraic Thinking
Estimated Time
15 minutes