Count significant figures using the zero rules, and round measurements to a given number of significant figures. There are 2 sheets here: count significant figures and round to significant figures. Pick one from the tray, print it, and add its answer key as a second page if you want one.
Nonzero digits count. Zeros between them count. Leading zeros never count. Trailing zeros count only with a decimal point.
They suit grades 9 to 12. Each sheet in the tray practices it a different way, so you can pick the one that fits.
Yes. Tick “add the answer key as page 2” before printing, or turn on Answer key to check work on screen.
Yes. Press New problems for a fresh set of the same kind, then print again. The answer key changes with it.
No. The sheets print straight from this page, free, with no sign-up.