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Significant Digits

Significant Digits

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Significant Digits

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  1. Significant Digits Calculations

  2. Rules for Addition and Subtraction • When you _____________or _____________measurements, your answer must have the same number of _____________as the one with the fewest • For example: 20.4 + 1.322 + 83

  3. 1.23056 + 67.809 = 23.67 – 500 = 40.08 + 32.064 = 22.9898 + 35.453 = 95.00 – 75.00 = _____________ _____________ _____________ _____________ _____________ Addition & Subtraction Problems

  4. Rules for Multiplication & Division • When you _____________ and _____________ numbers you look at the TOTAL number of _____________NOT just decimal places • For example: 67.50 x 2.54

  5. 890.15 x 12.3 = 88.132 / 22.500 = (48.12)(2.95) = 58.30 / 16.48 = 307.15 / 10.08 = _____________ _____________ _____________ _____________ _____________ Multiplication & Division Problems

  6. 18.36 g / 14.20 cm3 105.40 °C –23.20 °C 324.5 mi / 5.5 hr 21.8 °C + 204.2 °C 460 m / 5 sec _____________ _____________ _____________ _____________ _____________ More Significant Digit Problems