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# Significant Figures???

How do i round numbers to 1, 2, 3, 4, 5 and 6 significant figures?

### 2 Answers

- 1 decade agoFavorite Answer
Significant Figures are just a way of explaining how accurate your devices can be. And you can only be as accurate as your least accurate number.

A number like 1234 has four significant figures since it has four digits, as does a number such as 0.1234

.545 = Three significant figures

23 = Two significant figures

147.437 = Six significant figures

.99999 = Five significant figures

Significant figures ignore leading and trailing zeroes since they can be simplified using scientific notation.

Example

1200 = 1.2 x 10^3 = Two significant figures

0.000123 = 1.23 x 10^-4 = Three significant figures

- momLv 71 decade ago
give me some numbers and I will try to show you. It is easier to show with examples, explaining along the way.