Recitation Worksheet 1

Recitation Worksheet 1 - Recitation Worksheet 1 1 Determine...

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1. Determine the number of significant figures in each of the following measured numbers. number # sf number # sf 28.00 % 4 0.3408 ng 4 605.08 L 5 52000 cd 2 or 5 2. Carry out the following mathematical operations of measured numbers. Express your answers with the correct number of significant figures. 648.1 + 4.808 = 652.9 0.030 + 0.077 + 0.8311 = 0.938 12.6 − 5.67 = 6.9 0.36 − 0.09 = 0.27 16.4 + 6 + 4.00 = 26 (2.3x10 -3 ) (12.028) = 2.8 x 10 -2 = 9006 2.30x10 3 0.255 ( 29 ( 29 = 0 . 14 9911 . 0 09 . 2 0.148 = 11 . 0 88 . 0 8.0 3. Round off the following measured numbers to the indicated number of significant figures. number # sf number # sf number 3576.4 2 3 3.58 x 10 3 0.0030960 3 3.10 x 10 -3 8002 2 8.0 x 10 3 0.505200 3 5.05 x 10 -1 4. Are the numbers in the following statements exact or measured numbers? There are seven days in a week. __________E______ 31 grams of sugar ___________M_____ My mom bought 3 tomatoes at Wall Mart _____________E___ I bought 3 pounds of tomatoes at Wall Mart ______________M__
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Recitation Worksheet 1 - Recitation Worksheet 1 1 Determine...

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