Add doubles
Free printable Grade 1 math worksheet for "Add doubles" — practice addition strategies up to 20. No-prep, print or assign online.
This worksheet provides practice with adding doubles numbers, focusing on sums up to 20. Teachers can use it to reinforce students' understanding of doubles facts and develop efficient addition strategies. It supports building mental math skills and confidence in early addition concepts.
Learning objectives
- Recognize and recall doubles facts up to 10 + 10
- Add doubles to solve addition problems within 20
- Apply doubles strategies to improve addition fluency
Answer Key
How to use this worksheet
- Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 50 downloads a month).
- 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.
Frequently asked questions
Is the “Add doubles” worksheet free?
Yes. “Add doubles” is a free printable Math worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 50 downloads a month.
What grade or age is this Math worksheet for?
It's designed for Grade 1 (ages 6–7), covering Addition strategies up to 20.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
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