Round to three significant figures

    • [PDF File]Significant Figures - Astronomy

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      The most unambiguous way to determine the number of significant figures is to use scientific, or powers-of-ten notation. This removes the ambiguity as to whether 4530 has three or four significant figures. 4530 = 4.53 × 10 3 (three significant figures) 4530 = 4.530 × 10 3 (four significant figures) 0.567 = 5.67 × 10!2 (three significant ...

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    • [PDF File]Worksheet 1: Significant Figures

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      Determine the number of significant figures in each of the following. a) 0.1890 . b) 1.380 . c) 10 . d) 110.0 . e) 1.02 x 10-4 . f) 0.00038 . 2. Round the following to the three significant figures a) 0.0019481 . b) 19.291 . c) 10.00 . d) 7102.1919 . e) 1.0481 x 103 . f) 1500 . 3. Use a calculator to answer the following. Then round …

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    • [PDF File]Significant Figure Rules - Rice University

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      Example #2 - Round 3.78721 to three significant figures. Look at the fourth figure. It is 7, a number greater than 5, so you round the original number up to 3.79. Example #3 - Round 726.835 to five significant figures. Look at the sixth figure. It is a 5, so now you must look at the fifth figure also.

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    • [PDF File]Module 3 – Significant Figures - Moorpark College

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      Module 3 – Significant Figures Pretest: Do you know how to use significant figures correctly? If you think you do, take the following pretest to be sure. Check your answers at bottom of this page. If you do all of the pretest correctly, you may skip Module 3. 1. Add, then write the answer using proper significant figures: 1.008 + 1.008 + 16.0 =

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    • [PDF File]Significant Figures - Johns Hopkins University

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      4. For multiplication or division, round off the result to the smallest number of significant figures. For example: 1.23x2.0=2.5, not 2.46. 5. For logarithms, retain in the mantissa (the number to the right of the decimal point in the logarithm) the same number of significant figures as there are in the number whose logarithm you are taking.

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    • [PDF File]Rounding and Significant Technical Report

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      3.1 Significant Figures: The number of significant figures in a measured quantity is the number of digits that are known accurately, plus one that is in doubt. Zeroes that appear to the left of the first nonzero digit are placeholders and are not considered significant. Zeros located to the right of the first digit may be considered significant.

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    • [PDF File]Rules for Significant Figures

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      The number of significant figures are found in the coefficient. For example, the number 2.00 X 10 has three significant figures. Scientific notation offers two advantages: the number of significant figures can be indicated easily, and fewer zeros are needed to write very large or very small numbers. For example, the number 6,000,000 is more ...

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    • [PDF File]A Short Guide to Significant Figures - Yale Astronomy

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      A Short Guide to Significant Figures What is a “significant figure”? The number of significant figures in a result is simply the number of figures that are known with some degree of reliability. The number 13.2 is said to have 3 significant figures. The number 13.20 is said to have 4 significant figures.

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    • [PDF File]SIGNIFICANT FIGURES, EXPONENTS, AND SCIENTIFIC …

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      4. Round off 7962400 to three significant figures. Answer: To round off 7962400, use the first three significant figures. Therefore, 7962400 is between 7960000 and 7970000, but it is closer to 7960000. The zeros must be maintained as placeholders. The answer is 7960000 5. Round off 0.000275 to two significant figures.

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    • [PDF File]1–1. Round off the following numbers to three significant ...

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      Express the answer to three significant figures. 1–18. Evaluate each of the following to three significant figures and express each answer in SI units using an appropriate prefix: (a) , (b) , and (c) .(400 m)3 (200 kN) (0.005 mm)2 1–19. Using the base units of the SI system, show that Eq. 1–2 is a dimensionally homogeneous equation which

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