Significant Figures

Mathematics

Definition of estimation

A rough estimate of something related to value, number or size

Definition of significant figure

The digits in a number specified exactly to a degree of accuracy required

Definition of accuracy

The degree of approximation of the measured value to the actual value

The degree of approximation of a measurement to the actual value

Shows the level of accuracy of the measurement

The number of significant numbers

Counted starting from a non-zero digit

2 600

The number of significant figures is 4

0.0009

The number of significant figure is 1

12.5003

The number of significant figures is 6

0.809

The number of significant figures is 3

4.700

The number of significant figures is 4