Mathematics

Question 1

Significant Figures

Answer 1

Leading zeros are not significant figures.
Eg: 0.02 - 1 significant figure
0.23 - 2 significant figures
0.07 - 1 significant figure
0.00081- 2 significant figures

Trailing zeros without a decimal are not significant figures
Eg.
230 - 2 significant figures
300000 - 1 significant figure
47520 - 4 significant figure