Adding 1
Free printable Grade 1 math worksheet for "Adding 1" — practice addition up to 20. No-prep, print or assign online.
This worksheet focuses on adding 1 to numbers up to 20, helping students strengthen their addition skills and number sense. Teachers can use it as a practice tool to reinforce counting and simple addition concepts in Grade 1 classrooms. It supports skill-building in addition up to 20 through engaging, medium-difficulty exercises.
Learning objectives
- Recognize numbers up to 20 and add 1 to each number accurately
- Demonstrate understanding of basic addition by solving problems involving adding 1
- Develop number sense and fluency with addition facts within 20
Answer Key
How to use this worksheet
- Click “Download Worksheet” to get the PDF — free with a KiwiBee account (up to 25 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 1” worksheet free?
Yes. “Adding 1” is a free printable Math worksheet. Sign in with a free KiwiBee account to download the PDF — it includes up to 25 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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