What power solves 2^x = 32?
A logarithm asks one question: what exponent do I need? log3(81) says: 3 to what power gives 81?
Try this lessonPick a topic in math, science, chemistry, or writing. Try an example, get a clue, and practise at your pace.
No account or card needed. Practice answers stay on this page and aren’t saved.
A logarithm asks one question: what exponent do I need? log3(81) says: 3 to what power gives 81?
Try this lessonWork through an example, ask for a clue when you need one, then try a new question on your own.
All of math, science, chemistry and writing lessons or search across the whole library above.
Fill in one step at a time and check your answer. Need help? Tap “Give me a clue.”
Treat these examples as a starting point for a conversation, not as a replacement for your teacher’s guidance.
Need help with your own question? See how the family service works