Adding and subtracting significant figures practice

    • learning.hccs.edu

      All counting numbers and constants have an infinite number of significant figures. How many significant figures in the following. 458g (3) 4085g (4) 4850g (3) 0.0485g (3) 0.004085 g (4) 40.004085 g (8) Adding and Subtracting. When you add or subtract measurements, your answers must have the same number of decimal places as the one with the fewest.

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    • [DOC File]Significant Figures Practice Worksheet

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      If you are adding or subtracting, the answer has the same # of decimal places. as that of the least given. If you are multiplying or dividing, the answer has the same # of significant figures. as that of the least given. If you are doing a mix of addition, subtraction, multiplication, and division, then you need to …

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    • [PDF File]Appendix 1, Significant figures in numerical calculations

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      Practice Problems for Significant Figures . RULE -1: If the decimal is . Present: Find the first non zero on the left, then count all digits to the . RIGHT. If the decimal is . Absent: Find the first non zero on the right, then count all digits to the . LEFT. RULE-2: Every digit in scientific notation is Significant

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    • [DOC File]Guided notes: Scientific notation

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      (When adding or subtracting the least decimal place is used in the product) A) 104 B) 1.04 x 102 C) 103.95 D) 103.951 E) 104.0. 4. How many significant figures are appropriate to show in the result after carrying out the operation below? (When multiplying or dividing the least significant numbers are used in the product) (223.7 + 0.27) ÷ 4.21 =?

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    • [DOC File]Practice Problems on Working with Significant Figures

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      The starting values only have three significant figures each, so round the answer to three significant figures, 16.1. When adding and subtracting values, find the smallest decimal place that all values have in common and are significant and that is the last significant decimal place in your answer. Add the values like normal and round to the ...

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    • [DOC File]Significant Figures Practice

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      Scientific Notation: Adding and Subtracting Exponents must be the same or the operation cannot be performed. If the exponents do not agree, change the decimal and the power of ten notation of either number so as to agree with the other.

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    • [DOC File]Scientific Notation: Adding and Subtracting

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      They are significant only if the number is written with a decimal point. 7000 450.0 350 44 578 . 305 0.006200 565.05 5500 74.00 7040.0 23.7 x 10-2. 1.4 x 107 . 4.293 x 104 . 705 600 4301.0 0.00056 40280 33214 2.003 Adding & Subtracting Sig Figs: RULE: When adding or subtracting your answer can only show as many decimal places as the measurement ...

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    • [DOC File]1)

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      Measurements and Significant Figures Lab. Purpose: The aim of this lab is to practice recording measurements with the correct number of significant figures. Procedure: 1. Several stations have been set up around the room. Step up to a station, read the directions, determine the level of precision for the instrument, and read and record the ...

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    • [DOC File]Sigfig Calculation Practice Problems

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      ADDING or SUBTRACTING in scientific notation. 1. First make sure that the numbers are written in the same form (have the same exponent) 3.2 x 103 + 40 x 102 (change to 4.0 x 103) Add (or subtract) first part of exponent (mantissas) 3.2 + 4.0 = 7.2. The rest of the exponent remains the same. Answer: 7.2 x 103. How do you make the exponents the same?

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    • [DOC File]Rules for Using Significant Figures in Mathematical Operations

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      Significant Figures Information (p 136, 137, 138, 139) Part A. Measurement or non-measurement: Determine if the underlined number has an infinite or finite number of ...

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