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B. Significant Figures

B. Significant Figures . Numbers recorded in a measurement. Remember to record measurement in between the scale divisons. All the certain numbers plus first estimated number . B. Significant Figures . Nonzero integers always count as significant figures. 1457 4 significant figures.

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B. Significant Figures

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  1. B. Significant Figures • Numbers recorded in a measurement. Remember to record measurement in between the scale divisons. • All the certain numbers plus first estimated number

  2. B. Significant Figures • Nonzero integers always count as significant figures.1457 4 significant figures Rules for Counting Significant Figures

  3. B. Significant Figures • Zeros Rules for Counting Significant Figures • Leading zeros -never count0.0025 2 significant figures • Captive zeros -always count 1.008 4 significant figures • Trailing zeros - count only if the number is written with a decimal point100 1 significant figure 100. 3 significant figures 120.0 4 significant figures

  4. B. Significant Figures • Exact numbers -unlimited significant figures Rules for Counting Significant Figures • Not obtained by measurement • Determined by counting3 apples • Determined by definition1 in. = 2.54 cm

  5. B. Significant Figures • The number of significant figures in the result is the same as in the measurement with the smallest number of significant figures. Rules for Multiplication and Division

  6. B. Significant Figures • The number of significant figures in the result is the same as in the measurement with the smallest number of decimal places. Rules for Addition and Subtraction

  7. B. Significant Figures

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