Grade 3/Addition
1- & 2-Digit (3 Addends)
Three addends with a mix of 1- and 2-digit numbers for mental fluency.
Browse 6 1- & 2-Digit (3 Addends) worksheets for Grade 3 Math. These Addition worksheets are designed to give students targeted practice and build confidence in math.
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Whether you're a teacher looking for addition practice problems, a homeschool parent building a Grade 3 curriculum, or a tutor helping a student catch up, choose an available worksheet that matches what your student is practising.
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Prerequisites
Practice Questions
- 5 + 40 + 55 = ?
Show answer
100
- 7 + 28 + 32 = ?
Show answer
67
- 6 + 24 + 35 = ?
Show answer
65
- 9 + 41 + 29 = ?
Show answer
79
- 8 + 33 + 27 = ?
Show answer
68
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Teacher Resources
Teaching Notes
Have students circle pairs that make ten or hundred.
Common Mistakes
- Ignoring make-ten pairs.
- Incorrectly combining 1- and 2-digit numbers.
- Losing track of sums mentally.
- Not checking for friendly sums first.
Differentiation
SupportUse manipulatives or number lines for visualization.
ChallengeAdd a fourth addend or introduce larger numbers.
Discussion Questions
- What strategies did you use today?
- How do 'make ten' pairs help?
- Can you find different ways to add?
- When is mental math useful in daily life?
Learning Path
Skill Cluster
Addition Strategies
Estimated Time
12 minutes
Skills Practiced
Addition mental 3 addends