Question

2. When multiplying or dividing measured numbers, we use the measurement with the least number of

significant figures to determine the number of significant figures (sf) in our answer. For example:
3.5 cm x 4.75 cm = 17 cm2 (even though the calculator gives 16.675) Solve the following problems
assuming all are measured numbers. Report the correct number of significant figures.
a. 7.00 x 15.00 =
b. 40.2 . 1.901 =
c. (0.003)(13.2) =
d. 1.590 ÷ 0.3975 =

Answer 1

a. 105

b. 76.4

c. 0.04

d. 4.000

Step-by-step explanation:

Question a. has three significant figures

Question b. has three significant figures

Question c. has one significant digit (only the 3 is significant in the question, zeros are only significant if they are trailing with the presence of a decimal point or in between two non-zero numbers)

Question d. has four significant figures