Two-Digit + One-Digit Addition Worksheets
Free & unlimitedNo loginAnswer key includedCCSS 2.NBT.5
The bridge from fact fluency to the written algorithm: two-digit plus one-digit problems like 47 + 8. Students apply their within-20 facts inside bigger numbers and meet regrouping in its gentlest form.
The stacked format mirrors how the written method is taught; problems span 10+2 up to 89+9 so carrying appears naturally, not on every line.
🖨 Generate this worksheet free Practice online insteadName ____________Date ______Score ____/50
181 + 6 = ____
262 + 7 = ____
369 + 8 = ____
474 + 6 = ____
578 + 7 = ____
616 + 5 = ____
755 + 4 = ____
867 + 5 = ____
985 + 5 = ____
1011 + 5 = ____
1136 + 4 = ____
1215 + 8 = ____
1333 + 6 = ____
1480 + 7 = ____
1575 + 3 = ____
Preview: first 15 of 50 problems (Two-digit addition, CCSS 2.NBT.5). Open the generator for the full sheet + answer key — or press “New set” for a completely fresh one.
💡 Watch for students who count on by ones from 47 — that signals within-20 facts are not yet automatic. Fix the facts first, then return here.
Frequently asked questions
- What is CCSS 2.NBT.5?
- The grade 2 standard: fluently add and subtract within 100 using strategies based on place value, properties of operations, and the relationship between addition and subtraction.
- Should students use the written algorithm here?
- Both mental strategies (make the next ten) and the written method are appropriate. Mental first builds number sense; the stacked format then formalizes it.