
Adding 10
Free printable Grade 1 math worksheet for "Adding 10" — practice addition up to 20. No-prep, print or assign online.
This worksheet focuses on adding 10 to numbers up to 20, helping first graders build confidence in basic addition. Teachers can use it to reinforce number sense and addition fluency through targeted practice. Ideal for classroom exercises or homework, it supports skill development in addition within 20.
Learning objectives
- Add 10 to numbers up to 20 with accuracy
- Recognize patterns when adding 10 to single-digit and two-digit numbers
- Develop mental math strategies for adding 10 quickly
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 “Adding 10” worksheet free?
Yes. “Adding 10” 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 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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