Question

How many significant figures are in each of the folloing numbers?
A) 5.40
B) 1.2*103
C) 210
D) 0.00120
E) 801.5
F) 0.0102
G) 1,000
H) 9.010*10-6

Answer 1

A) 3
B) 2
C) 2
D) 3
E) 4
F) 3
G) 1
H) 4

Answer 2

Do not count a zero unless it is in the middle of numbers. Like this: .2035, Which is 4 sif figs. Do not count trailing or beginning zeros. Like this: 00.023, which is two sig figs.

Try it and see if you can fig it out.