# Describe what is meant by significant figures and order of magnitude?

**Question: Describe what is meant by significant figures and order of magnitude?**

Significant Figures: These are the digits in a number that carry meaningful information about its precision. They include all non-zero digits, any zeros between them, and any trailing zeros in a decimal number. For example, in 0.004560, the significant figures are 4560. They tell you how precise the measurement is.

Order of Magnitude: This describes the scale or size of a number in powers of ten. It's used to compare numbers broadly. For instance, 10 and 100 are different by one order of magnitude (10^1), while 1 and 1000 differ by three orders of magnitude (10^3). It helps in understanding how large or small something is in a general sense. two concepts, both crucial for accuracy and scale.

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