Add 2-digit and 1-digit numbers within the same ten
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Free printable Add 2-digit and 1-digit numbers within the same ten worksheets for 1st grade. Students add a one-digit number to a two-digit number where the sum stays within the same ten (e.g., 32 + 5 = 37), practicing addition without crossing a ten boundary. A foundational no-regrouping addition skill. Part of our addition worksheets collection.
What You'll Learn
- Add a two-digit and one-digit number without crossing a ten
- Practice addition where the ones digits sum to 9 or less
- Build confidence adding mixed-digit numbers within one ten
FAQ
Why is it important to practice adding within the same ten before crossing a ten boundary?⌄
Same-ten addition only requires working with the ones digit, keeping the task simpler while still building the habit of attending to place value structure.
What strategy do students use to add a 1-digit number to a 2-digit number within the same ten?⌄
Students add the ones digits only, keeping the tens digit unchanged — for example, 43+5: the tens stay at 4, ones become 8, giving 48.
How do within-the-same-ten problems prepare students for problems that cross a ten?⌄
Fluency with same-ten problems gives students a speed baseline, so when crossing-ten problems appear, they can focus on the regrouping challenge specifically.
Ratings & Reviews
3Emily W.
Homeschool parent · Verified download
Excited for this one! I've been hunting for a good printable on this topic for weeks.
Helpful · 9
Priya N.
Kindergarten Teacher · Verified download
This is going straight into my lesson plans the second it drops. Please prioritize this one!
Helpful · 13
Maria R.
Homeschool parent · Verified download
Can't wait! This is exactly what we've been looking for. Please make it soon!
Helpful · 7
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