Kindergarten · Grade 1 · US

Addition to 20 Worksheets

Twenty addition problems with sums up to 20, including the "make a ten" facts (8 + 5, 7 + 6) that first graders are expected to know from memory by the end of the year. Large print with answer boxes; the answer key is on page 2.

Problems
20 · Addition to 20
Print
Large type, answer boxes
Answer key
Included, same order
Paper size
US Letter (A4 available)

Worksheet settings

Operation
Numbers up to

Sums never go past this number; subtraction starts from it at most.

Problems per page
Layout
Versions
Paper

Share the page link to give someone exactly this worksheet.

Built in your browser. 2 pages, about 25 KB. Nothing is uploaded.

Addition to 2020 problems · large printName:Date:Score: ______ / 20printmathsheets.com · free printable, with answer key · seed 200020Page 1 of 21.19+1=2.9+4=3.5+7=4.16+0=5.10+9=6.12+3=7.11+3=8.6+13=9.3+13=10.14+5=11.3+15=12.8+10=13.1+4=14.1+7=15.7+11=16.10+5=17.12+5=18.8+11=19.5+1=20.0+2=

Page 1 of 2 · US Letter · 0.5″ margins. The PDF prints at exactly this layout.

About this worksheet

For a shorter session, choose 10 or 12 problems. Switch to the Mixed operation for addition and subtraction within 20 on one page, or to columns for the written format.

Standards

  • Common Core 1.OA.C.6 — add and subtract within 20, fluency within 10
  • Common Core K.OA.A.2 (sums within 10 as a subset)

Questions

What are the "make a ten" facts?

Sums that cross 10, such as 8 + 5: children learn to take 2 from the 5 to make 10, then add the remaining 3. This sheet includes them alongside the easier facts.