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Word problems with sum or difference unknown - up to 20

Free printable Grade 1 math worksheet for "Word problems with sum or difference unknown - up to 20" — practice addition and subtraction word problems up to 20. No-prep, print or assign online.

Word problems with sum or difference unknown - up to 20 — free printable Grade 1 math worksheetOpen in KiwiBee to download

This worksheet provides grade 1 students with medium-difficulty word problems focused on addition and subtraction within 20. Teachers can use it to reinforce students' problem-solving skills by identifying unknown sums or differences in practical contexts. It supports development of foundational arithmetic fluency and critical thinking in early math learners.

Math
Number Sense & Operations
Grade 1
Worksheets
Ages 6–7
medium

Learning objectives

  • Solve addition word problems with unknown sums up to 20
  • Solve subtraction word problems with unknown differences up to 20
  • Apply addition and subtraction strategies to real-world scenarios

How to use this worksheet

  1. Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
  2. Print at home or in class for Grade 1; it's no-prep, with no extra materials needed.
  3. Hand it out as classwork, homework, or a quick warm-up.

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