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Add and subtract mixed customary units
Free printable Grade 4 math worksheet for "Add and subtract mixed customary units" — practice customary units of measurement. No-prep, print or assign online.
This worksheet challenges Grade 4 students to add and subtract mixed customary units, including feet and inches as well as pounds and ounces. Teachers can use it to reinforce students' understanding of measurement conversions and improve their problem-solving skills in real-world contexts. Ideal for assessing mastery of customary units in a hands-on and engaging way.
Learning objectives
- Add mixed customary units such as feet and inches with accuracy.
- Subtract mixed customary units involving pounds and ounces.
- Convert between different customary units to solve measurement problems.
Answer Key

How to use this worksheet
- Click “Download Worksheet” and sign in with Google or email to get the PDF instantly.
- Print at home or in class for Grade 4; 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 mixed customary units” worksheet free?
Yes. “Add and subtract mixed customary units” is a free printable Math worksheet. Sign in with Google or email to download the PDF instantly.
What grade or age is this Math worksheet for?
It's designed for Grade 4 (ages 9–10), covering Customary units of measurement.
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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