
Add three numbers up to three digits each
Free printable Grade 3 math worksheet for "Add three numbers up to three digits each" — practice addition: three digits. No-prep, print or assign online.
This worksheet provides practice for Grade 3 students to add three numbers, each up to three digits, enhancing their addition fluency. Teachers can use it to reinforce place value concepts and build confidence in multi-step addition problems. Ideal for classroom exercises or homework, it supports skill development in addition with medium difficulty challenges.
Learning objectives
- Add three numbers with up to three digits each accurately.
- Apply place value understanding to perform multi-digit addition.
- Demonstrate problem-solving skills by combining three numbers in various contexts.
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 3; 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 three numbers up to three digits each” worksheet free?
Yes. “Add three numbers up to three digits each” 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 3 (ages 8–9), covering Addition: three digits.
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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