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  1. www.astro.yale.edu › astro120 › SigFigA Short Guide to Significant Figures - Yale University

    Rules for rounding off numbers. If the digit to be dropped is greater than 5, the last retained digit is increased by one. For example, 12.6 is rounded to 13. If the digit to be dropped is less than 5, the last remaining digit is left as it is. For example, 12.4 is rounded to 12.

  2. ola4.aacc.edu › ljtracey › CHE111Significant Figures and Rounding Explanations and Examples - AACC

    Significant Figures and Rounding – Explanations and Examples Read pages 18-22 in your Lab Manual for a more thorough discussion of the meaning of significant figures and how it relates to accuracy, precision, and error.

  3. www.newcastle.edu.au › Scientific-notation,-significant-figures-and-roundingScientific notation, significant figures and rounding

    Scientific notation, significant figures and rounding . Scientific or Standard Notation is best used to express very large or very small numbers in a compact, easy to read form, but can be used on any numbers. Simply, the basic format of the notation is. + n -> a positive index indicates a large number. 10n.

  4. www.moorparkcollege.edu › Study-Resources › module_3_significant_figuresModule 3 – Significant Figures - Moorpark College

    Significant Figures: Fundamentals. Use these rules when recording measurements and rounding calculations in chemistry. When Recording a Measurement. Write all the digits you are sure of, plus the first digit that you must estimate in the measurement – the first doubtful digit (the first uncertain digit). Then stop.

  5. www.ruf.rice.edu › ~kekule › SignificantFigureRules1Significant Figure Rules - Rice University

    There are three rules on determining how many significant figures are in a number: Non-zero digits are always significant. Any zeros between two significant digits are significant. A final zero or trailing zeros in the decimal portion ONLY are significant. Focus on these rules and learn them well.

  6. cpb-eu-w2.wpmucdn.com › files › 2018DECIMAL PLACES AND SIGNIFICANT FIGURES DECIMAL PLACES - WPMU DEV

    SIGNIFICANT FIGURES. The amount of approximation required in a number may be described in another way by saying how many significant figures are required. To find how many significant figures a number contains count all figures in the number except zeros at the beginning or end of the number.

  7. www.doingmaths.co.uk › uploads › 8/3/8Rounding to significant figures - Doing Maths

    Rounding to significant figures 1. Round these numbers to one significant figure: a. 543 b. 32 359 c. 12 638 d. 54 e. 21 987 f. 476 g. 2 541 209 h. 88 312 2. Round these numbers to two significant figures: a. 543 b. 32 359 c. 12 638 d. 54 e. 21 987 f. 476 g. 2 541 209 h. 88 312 3. Round these numbers to one significant figure: a.