Measurement & Significant Figures Part 2

How many significant figures would your answer have in the following problem?

8.72 cm  4.622 cm

• 4

• infinite

• 3

• 7

Round this off to 2 significant figures: 859

• 85

• 860

• 900

• 86

Write your own addition or subtraction problem here and include the correct answer.  Your two numbers need to have a different number of places after the decimal.

If you had to explain this video to a friend who has not watched it, how would you summarize it?