Science: Significant Figures
By G Waller
How many significant figures are present in each of the following measurements?
0.00645 g
0.00340 mL
1.236 m
102.4 cm
120 L
45,000 g
0.100 s
0.020 kJ
325.00 Watts
0.0001 m
4.5 
103 g
2 
104 kg
1.234 
10-6 m
32,000,000 ng
120,300,000,000 μm