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  1. Significant figures rules (sig fig rules) (video) | Khan Academy

    This video teaches significant figures rules, crucial for measurements and calculations. It covers identifying significant digits, including non-zero digits, zeros in between, leading zeros, and trailing …

  2. Intro to significant figures (video) | Khan Academy

    Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit.

  3. Addition and subtraction with significant figures - Khan Academy

    This video teaches addition and subtraction with significant figures, emphasizing that the result should match the least precise measurement. It offers examples and explains the real-world importance of …

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  6. Worked example: Calculating mass percent - Khan Academy

    You generally round your final answer to the significant figures of your given with the fewest sig figs. If your givens are 9.5, 5.07, 7.993, and 3.32, you'd round to 2 significant figures because the fewest in …

  7. Multiplying and dividing with significant figures - Khan Academy

    The general rule of thumb is whatever is the minimum number of significant figures in any of the numbers you've calculated, that's how many significant figures-- or the least number is the number of …

  8. Significant figures (practice) | Khan Academy

    Arithmetic (all content) Course: Arithmetic (all content) > Unit 6 Lesson 14: Significant figures Intro to significant figures Rules of significant figures Multiplying and dividing with significant figures Addition …

  9. Worked example: Using the ideal gas law to calculate number of moles

    In general with sig figs your answer should have no more digits than the number with the smallest number of sig figs. But the particulars depend on which mathematical operation you're performing. If …

  10. Rules for determining significant figures - Khan Academy

    Only trailing zeros work that way. So, 0.00034 only has 2 sig-figs (3 and 4). let's say we have extra zeros at the end of the number like 0.000340, it has 3 sig-figs (3, 4 and 0 at the end).