Significant Figures

Question 1

What is rule 1 of significant figures?

Answer 1

Every non zero digit is significant

Question 2

What is rule 2 of significant figures?

Answer 2

Zeros to the left of the first non zero digit are not significant

Question 3

What is rule 3 of significant figures?

Answer 3

Zeros in between nonzero digits are significant

Question 4

What is rule 4 of significant figures?

Answer 4

Zeros to the right of a nonzero digit and to the right of a decimal point are significant

Question 5

What is rule 5 of signficant figures?

Answer 5

Zeros to the left of a decimal point are considered significant, but are not significant if serve as placeholders. If a decimal point does not exist, then any trailing zeros are not significant.

Question 6

What must be done when adding and subtracting?

Answer 6

Identify the least precise measurement (aka the one with the least amt. of decimal places) and then round the final answer to match that. (1.1 + 1.21 = 1.31 = 1.3)

Question 7

What must be done when dividing and multiplying?

Answer 7

Count the significant figures of each number and then round the final answer to match the number with the least amount of significant figures.