Significant Figures

Follow the rules below. It really isn't hard.

1. Rules for Nonzero Digits All nonzero digits are significant. 526 in ... 3 sig figs 4,899 ft ... 4 sig figs 2. Rules for Zeros Zeros between nonzero digits are significant. 50.33 ml ... 4 sig figs 10.001 L ... 5 sig figs Zeros in front of nonzero digits are not significant. 000.72 kg ... 2 sig figs 0.008 g ... 1 sig fig Zeros at the end of a number that has no decimal are not significant. 230 km ... 2 sig figs 9,000 m ... 1 sig figs Zeros at the end of a number that has a decimal are significant. 4000. cc ... 4 sig figs 20.00 mm ... 4 sig figs 3. Rule for Scientific Notation   All digits before the exponent are significant. 6.02 e23 m ... 3 sig figs 9.0 e-7 g ... 2 sig figs

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