Grade 10 · Science · Chemistry

10th grade Significant figures in measurements and calculations worksheet

6 printable versionsBuilding Confidence10 questions · answer keyFree · no account

Level: Building Confidence · On Level · Challenge Me

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Significant figures in measurements and calculations

Grade 10 Science Worksheet - Building Confidence

NameDate

Circle the best answer, or write your answer on the line.

What is 2.71828 rounded to 3 significant figures, Ari?
What is 0.004567 rounded to 3 significant figures, Bo?
What is 3.14159 rounded to 4 significant figures, Esme?
4.
On the measurement card, how small is the ruler's smallest mark, Kira?
- 1 cm
- 0.01 cm
- 0.1 cm
5.
On the measurement card, why is the reading 4.65 cm and not 4.7 cm, Luz?
Use the picture in question 4.
- It is closer to the 4.7 mark
- The ruler reads in whole cm
- It lies between the marks
6.
How many significant figures does 0.0340 have, Milo?
- 5
- 3
- 2
7.
How many significant figures does 20.06 have, Pia?
- 3
- 4
- 2
8.
Do the zeros at the start of 0.0072 count as significant figures, Ren?
- Yes, but just the last one of them
- No: they place the decimal point
- Yes: each digit counts
9.
Does the zero in 305 count as a significant figure, Tala?
- No: zeros don't count
- No: zeros between digits are placeholders
- Yes: it sits between nonzero digits
10.
Why does the last zero in 2.50 g count, Zee?
- It makes the number look neat
- Trailing zeros are placeholders
- It shows the tool read that place

Significant figures in measurements and calculations. Every version has 10 questions, and the answer key prints on the second page.

I can read a tool to its smallest mark plus one estimated digit.
I can count significant figures, including which zeros count, and in scientific notation.
I can round a product or quotient to the fewest significant figures, and a sum or difference to the fewest decimal places.
I can tell exact numbers (counts and definitions) from measured ones.

Standard: practices (no PE)

significant figures: The certain digits of a measurement plus one estimated digit

estimated digit: The last digit, read between the smallest marks

leading zero: A zero before the first nonzero digit; it doesn't count

captive zero: A zero between nonzero digits; it counts

exact number: A counted or defined number, with no limit on its precision

Your child rounded to decimal places. Significant figures count from the first nonzero digit.

Your child kept every calculator digit. An answer can't be more certain than the measurements it came from.

Your child counted the leading zeros. Zeros before the first nonzero digit only place the decimal point.

What is the most common mistake with significant figures in measurements and calculations?

Your child rounded to decimal places. Significant figures count from the first nonzero digit.

Are these 10th grade science worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

Every sheet you scan goes into your child’s record: dated, marked and ready for the year-end portfolio. Homeschool records