Add a 2-digit & two 1-digit numbers
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Free printable add a 2-digit & two 1-digit numbers worksheets for 3rd grade. Students add three numbers together — one two-digit and two single-digit — practicing the associative property and multi-addend addition strategies. Great for building 3-addend fluency in 3rd grade. Part of our addition worksheets collection.
What You'll Learn
- Add one 2-digit number and two 1-digit numbers together
- Group and combine addends to find the total sum
- Practice multi-addend addition with mixed digit counts
FAQ
What math property do students use when adding three numbers?⌄
Students apply the associative property of addition, which allows them to group any two addends first — for example, adding the two 1-digit numbers together before adding the 2-digit number.
How do three-addend problems prepare 3rd graders for later math?⌄
Working with multiple addends builds the flexible thinking needed for multi-step word problems and reinforces that addition can be applied in any order.
What is a good strategy for adding a 2-digit number and two 1-digit numbers mentally?⌄
Students can look for pairs that make a ten among the three numbers first, then add the remaining value to the 2-digit number for a faster, more efficient calculation.
Ratings & Reviews
3Rachel H.
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Helpful · 6
Maria R.
Homeschool parent · Verified download
Can't wait! This is exactly what we've been looking for. Please make it soon!
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Tom B.
Learning Specialist · Verified download
This will be a great addition. I already recommend ClassWeekly to all the families I work with.
Helpful · 10
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