Add 3 numbers (missing addend)
Browse 13 free printable Add 3 numbers (missing addend) 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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Prerequisites
What to Do Next
Practice Questions
- ? + 4 + 9 = 19
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6
- 7 + ? + 5 = 18
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6
- 3 + 8 + ? = 17
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6
- ? + 5 + 6 = 18
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7
- 9 + ? + 2 = 16
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5
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Teacher Resources
Teaching Notes
This activity reinforces understanding of addition and the inverse relationship between addition and subtraction. Encourage students to add the known numbers first, then subtract from the total sum to find the missing addend. Visual models like number lines or bar models can be helpful.
Vocabulary
Common Mistakes
- Adding all given numbers instead of finding the missing part.
- Incorrectly subtracting when finding the missing addend.
- Misunderstanding the concept of equality in the equation.
Differentiation
Discussion Questions
- How can subtraction help us find a missing number in an addition problem?
- Why is it important for both sides of the equal sign to have the same value?
- Can you think of a real-life situation where you might need to find a missing number in a sum?
Extension Activities
- Use number bonds to visualize.
- Create equations with missing parts.
Parent Tip
Give your child a total and some parts, ask for the missing part.
Learning Path
Skill Cluster
Number Sense & Operations
Estimated Time
15 minutes