Add and subtract three-digit numbers
Free printable Grade 3 math worksheet for "Add and subtract three-digit numbers" — practice mixed operations: addition and subtraction. No-prep, print or assign online.
This worksheet provides practice in adding and subtracting three-digit numbers, focusing on mixed operations to reinforce computational fluency. Teachers can use it to assess students' understanding of place value and regrouping strategies in both addition and subtraction. Ideal for Grade 3 math instruction, the exercises support skill development in multi-digit arithmetic and problem-solving.
Learning objectives
- Add three-digit numbers accurately using place value understanding
- Subtract three-digit numbers with and without regrouping
- Apply mixed operations to solve word problems involving three-digit numbers
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 and subtract three-digit numbers” worksheet free?
Yes. “Add and subtract three-digit numbers” 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 Mixed operations: addition and subtraction.
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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