Here's some additional practice if you need a refresher on significant figures. Significant figures are super important in chemistry, so we strongly encourage students to review this section!
Take this diagnostic test: https://chemquiz.net/sig/
# of problems: 10
Type of questions: SELECT
Counting sig figs in numbers
Multiplication & division problems with sig figs
Addition & subtraction problems with sig figs
Display numbers as: SELECT
Decimal (regular) notation
Scientific (exponential) notation
Include units: Include units in problems to make them more realistic
Question format: Fill-in-the-blank
Display quiz as: interactive web page
If you scored 8 or above (out of 10 questions), you chillin'! If you got any questions wrong, make sure you understand why it is incorrect (look through the other links on this page for other resources). Otherwise, congratulations on finishing the AP Chemistry summer homework!
If you scored a 6 or 7, watch this video for a quick review: https://www.youtube.com/watch?v=l2yuDvwYq5g
If you have time, try the quiz in 1) (it should reshuffle the questions) again!
If you scored a 5 or below, follow this Khan Academy course regarding significant figures:
Multiplication and Division: https://www.khanacademy.org/math/arithmetic-home/arith-review-decimals/arithmetic-significant-figures-tutorial/v/multiplying-and-dividing-with-significant-figures
Addition and Subtraction: https://www.khanacademy.org/math/arithmetic-home/arith-review-decimals/arithmetic-significant-figures-tutorial/v/addition-and-subtraction-with-significant-figures
Significant figures practice: https://www.khanacademy.org/math/arithmetic-home/arith-review-decimals/arithmetic-significant-figures-tutorial/e/significant_figures_1
If you have time, try the quiz in 1) (it should reshuffle the questions) again!
Congratulations on finishing all the summer homework! Enjoy the rest of your day/break!