
Add and subtract numbers written in scientific notation
Free printable Grade 8 math worksheet for "Add and subtract numbers written in scientific notation" — practice scientific notation. No-prep, print or assign online.
This worksheet provides challenging practice for middle school students on adding and subtracting numbers in scientific notation. Teachers can use it to reinforce understanding of exponent rules and decimal placement while developing students' computational skills. Ideal for Grade 8 math classes focusing on scientific notation, it supports mastery of manipulating and simplifying expressions involving powers of ten.
Learning objectives
- Add numbers expressed in scientific notation with different exponents accurately
- Subtract numbers written in scientific notation by aligning their powers of ten
- Simplify results and express answers in proper scientific notation form
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 Middle School; 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 numbers written in scientific notation” worksheet free?
Yes. “Add and subtract numbers written in scientific notation” 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 Middle School (ages 11–14), covering Scientific notation.
Does it come with an answer key?
Yes — a matching answer key is included so you can grade it in seconds.
Make it your own in the Worksheet Studio
Combine this with other worksheets, duplicate it, or generate a fresh version for any grade and language — free, no sign-up.
Open the Worksheet Studio


