KiwiBee printable
Add three numbers
Free printable Grade 1 math worksheet for "Add three numbers" — practice addition up to 20. No-prep, print or assign online.
This worksheet provides practice for Grade 1 students to add three numbers with sums up to 20. Teachers can use it to reinforce addition skills and assess students' ability to handle multiple addends in a single problem. It supports building foundational arithmetic fluency in early learners.
Learning objectives
- Add three numbers with sums up to 20 accurately
- Demonstrate understanding of addition by combining three single-digit numbers
- Solve medium-difficulty addition problems involving three addends
Answer Key

How to use this worksheet
- Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
- Print at home or in class for Grade 1; it's no-prep, with no extra materials needed.
- Use the included answer key to mark it in seconds.
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