Significant figures (or significant digits) are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and any trailing zeros in the decimal portion. Understanding significant figures is important in scientific measurements and calculations, as they indicate the precision of the numbers involved. ### Rules for Identifying Significant Figures: 1. **Non-Zero Digits**: All non-zero digits (1-9) are always significant.
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