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Significant digits, which are also called significant figures, are very important in Chemistry. Each recorded measurement has a certain number of significant digits. Calculations done on these measurements must follow the rules for significant digits. ... Adding and Subtracting...
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www.fordhamprep.org/gcurran/sho/sho/lessons/lesson23.ht...
www.fordhamprep.org/gcurran/sho/sho/lessons/lesson23.htm
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In the example above, notice that the measurement was recorded as 25.45 cm - not 25.4 cm, or 25.5 cm, or 25.52 cm. The number of digits that you write down for a measurement is called the number of significant digits (or significant figures) in the measurement. ... When Adding and Subtracting...
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www.batesville.k12.in.us/Physics/APPhyNet/Measurement/S...
www.batesville.k12.in.us/Physics/APPhyNet/Measurement/Significant_Digits.html
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The least significant decimal is the place that holds the last significant digit. For example, 243.3's least significant decimal is -1 (10^-1 for the 1/10ths place). When adding values together, your result is only as significant as your value with the least significant decimal in the highest place.
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ostermiller.org/calc/significant_figures.html
ostermiller.org/calc/significant_figures.html
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Chemistry question: Significant figures adding and subtracting? Listen people...somebody should just right the answer in there first sentence. e.g. albert Einstein iveted the light bulb. then below that ... Adding significant numbers? Adding significant figures? Significant figures when adding? Subtracting two negatives...
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wiki.answers.com/Q/Significant_figures_adding_and_subtr...
wiki.answers.com/Q/Significant_figures_adding_and_subtracting
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Zeroes before a number do not count as significant figures. The number 0.004 has one significant figure. As we will see below, for adding and subtracting, it is not significant figures that count, it is the number of decimal places.
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www.wellesley.edu/Chemistry/stats/sigfig2.html
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How to Use Significant Figures in Addition and Subtraction. When adding or subtracting measurements in chemistry, we quite often cannot get exact measurements. Either that, or the measurements we do get have so many figures we would not be able to... ... eHow Article: How to Use Significant Figures in Addition and Subtraction...
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www.ehow.com/how_2323698_use-significant-figures-additi...
www.ehow.com/how_2323698_use-significant-figures-addition-subtraction.html
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Understanding and Using Significant Figures ... Determining Which Figures are Significant ... Multiplication and Division Involving Significant Figures...
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www.phys.unt.edu/PIC/significant_figures.htm
www.phys.unt.edu/PIC/significant_figures.htm
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Significant figures are the number of reliably known digits used to locate a decimal point reported in a measurement. Proper use of significant ... Taking all this into account and remembering to round appropriately, the result should be reported as 28. Addition and Subtraction: When adding or subtracting numbers,
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phoenix.phys.clemson.edu/tutorials/sf/index.html
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When measuring physical quantities, scientists have to keep track of their level of precision. ... Introducing Significant Figures ... When adding or subtracting scientific data, it is only last digit (the digit the furthest to the right) which matters. For example, let's assume that we're adding three different distances:
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physics.about.com/od/classroomphysics/a/SigFigs.htm
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