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Warm Up #7 (Page 28) 10/9/2014

Warm Up #7 (Page 28) 10/9/2014 Round the following numbers to 2 significant figures (Write the question) 1)0.0009456 g 2) 124,000 m 3)1.25 cm Perform the following calculation and report your answer to the appropriate number of significant figures 64.879 cm + 8956 cm + 79.10 cm.

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Warm Up #7 (Page 28) 10/9/2014

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  1. Warm Up #7 (Page 28) 10/9/2014 Round the following numbers to 2 significant figures (Write the question) 1)0.0009456 g 2) 124,000 m 3)1.25 cm Perform the following calculation and report your answer to the appropriate number of significant figures 64.879 cm + 8956 cm + 79.10 cm

  2. Significant Figures Review page • Zeros do not count if they are behind a number and there is no decimal point. • Remember when there is a decimal point, the zero could be significant. • ***Find a decimal in a number, find the first significant figure in that number and that number and those that follow are all significant.

  3. Examples

  4. Scientific notation • This is the standard form for scientific notation • M x 10 n • M has to be a number between 1 and 10. • If n is a negative number, the number is smaller than 1. Move decimal to the left for standard form. • If n is a positive number, the number is bigger than 1. Move the decimal to the right for standard form.

  5. Write these in decimal form • 6.2 x 10 4 • 1.5 x 10 -2 • 2.4 x 10 -5 • 7.06 x 10 3 • 6 x 10 6 • 1.949 x 10 2 • 2.5007 x 10 -1

  6. Are these correct? • 9.2 x 10 2 • 0.4 x 10 -4 • 1.8 x 2 5 • 860 x 10 -3 • 9.8988989887 x 10 1

  7. Write these in Scientific Notation • 6,011,000 • 0.058 • 35 • 0.009009 • 6.732104

  8. Calculate the following • Volume of a cube • What is the volume of a cube if one of the sides is 1 x 10 8 cm?

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