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  • Significant Figures Calculations (OpenChem)
    https://chem.libretexts.org/Courses/University_of_California_Irvine/UCI%3A_General_Chemistry_1A_(OpenChem)/182Significant_Figures_Calculations(OpenChem)
  • 3.17: Significant Figures in Addition and Subtraction
    https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/03%3A_Measurements/3.17%3A_Significant_Figures_in_Addition_and_Subtraction
    This page discusses the importance of accuracy in numerical computations using calculators, emphasizing that results should be rounded to reflect the precision of the least precise measurement in addi...This page discusses the importance of accuracy in numerical computations using calculators, emphasizing that results should be rounded to reflect the precision of the least precise measurement in addition or subtraction. For instance, when adding 16.7 g and 5.24 g, the answer should be reported as 21.9 g. This rounding principle also applies to whole numbers, with results adjusted to the last significant digit of the input values.

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