If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Algebra basics

Course: Algebra basics > Unit 6

Lesson 5: Scientific notation word problems
Math
Algebra basics
Expressions with exponents
Scientific notation word problems
© 2023 Khan AcademyTerms of usePrivacy PolicyCookie Notice

Scientific notation word problems

Google Classroom
You might need: Calculator

Problem

Light travels 9, point, 45, dot, 10, start superscript, 15, end superscript meters in a year. There are about 3, point, 15, dot, 10, start superscript, 7, end superscript seconds in a year.
How far does light travel per second?
Write your answer in scientific notation.
meters
Stuck?
Stuck?