Addition: Add Whole Tens - Missing Number
Browse 6 free printable Addition: Add Whole Tens - Missing Number worksheets for Grade 2 Math. These Addition worksheets are designed to give students targeted practice and build confidence in math.
Worksheets are available at multiple difficulty levels — Easy, Medium, and Hard — so you can meet every student where they are. Each worksheet is an instant PDF download: print as many copies as you need for your classroom, tutoring sessions, or home practice at no cost.
Whether you're a teacher looking for addition practice problems, a homeschool parent building a Grade 2 curriculum, or a tutor helping a student catch up, these free printable worksheets are ready to use today.
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What to Do Next
Practice Questions
- 30 + ? = 64
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34
- ? + 52 = 82
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30
- 50 + ? = 73
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23
- ? + 19 = 69
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50
- 40 + ? = 87
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47
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Quick Tip
Teacher Resources
Teaching Notes
Encourage students to use mental math strategies and place value understanding to find the missing addend. Relate the problem to known facts and the inverse relationship of addition and subtraction.
Vocabulary
Common Mistakes
- Confusing the operation, e.g., adding instead of subtracting.
- Errors in basic subtraction facts when performing the inverse operation.
- Incorrectly applying place value strategies, especially when 'crossing' tens is implicitly involved.
Differentiation
Discussion Questions
- How does knowing your addition facts help you solve for a missing number?
- What strategy did you use to find the missing number in the equation?
- Can you explain why subtracting helps solve for the missing addend?
- How is this problem like adding two-digit numbers, and how is it different?
Extension Activities
- Use a number line to find missing addends.
- Create your own missing number problems.
- Work with larger whole tens.
Parent Tip
Give your child a total and one number, ask them to find the missing number.
Learning Path
Skill Cluster
Number Sense and Operations
Estimated Time
15 minutes