SIGNIFICANT DIGIT RULES

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Presentation transcript:

SIGNIFICANT DIGIT RULES

IT”S EEEAAASSSYYY! 1. All non-zero digits are significant. (1-9) Ex. 2543

HELP ME! I have a zero!!!! There are only three places that a zero can be in a number – beginning, middle, or end. Here is how we know if they are significant too. Zero at the beginning is NEVER Significant. Ex. 0.00023 Zero in the middle is ALWAYS Significant. Ex. 2004 Zero at the end are significant ONLY if there is a decimal. Ex. 2500 and 3.00

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Multiplication and Dividing rules When multiplying or dividing you look at least precise value in original data and the final answer must have the same number of significant digits. Examples

Rule for addition and subtraction When adding or subtracting you look at the number that is least precise due to place value that is in your data and your final answer must have that place value. Examples: