How many significant figures (sigfigs) are in each of the following?
a. 225.0
b. 0.0003210
c. 1000.0
d. 1000
e. 2.00001
f. 2.010 x 104
Round each of these to three sigfigs:
a. 15.9994
b. 0.6654
c. 4885
d. 0.027225
e. 1.015 x 1023
Perform the following and round the results to the appropriate number of sigfigs.
a. 77.981 x 2.33
b. 4 x 0.0065
c. 48.60(0.6959)
d. 23081/0.8981
e. 424.5/2.8462