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Mr. Sweeten’s NEW and Improved “Sig Fig” Math Rules

Mr. Sweeten’s NEW and Improved “Sig Fig” Math Rules. For multiplication and division: Count the total sig figs in each of the original numbers – What was the least number of total sig figs found in either number? Report or round your answer to have that same lowest number of sig figs!.

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Mr. Sweeten’s NEW and Improved “Sig Fig” Math Rules

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  1. Mr. Sweeten’s NEW and Improved “Sig Fig” Math Rules • For multiplication and division: • Count the total sig figs in each of the original numbers – What was the least number of total sig figs found in either number? • Report or round your answer to have that same lowest number of sig figs! • For addition and subtraction: • Scan each of the original numbers from left to right - What was the last PLACE in either number where you found a sig fig? • Report or round your answer to have its last sig fig in that same PLACE!

  2. Sig. Fig. Math WS 23.5 7.002 9 2.09 45.98 - 3.90 + 8.0000 - .2 + 2.03 - .600 / .0101 12. 101 10000 9. 7.002 - .2 5. 12 5. 12 / 3.0000 1. 23.5 + 2.03 4.0 = 4 6.802 6.8 25.53 25.5 x 42.50 10. 24.3 10. 24.3 x 9.030 2. 45.98 6. .00060 6. .00060 - 3.90 = 1032.75 1030 .0054 = .005418 1.03 x 103 42.08 42.08 x 2616 11. 330 11. 330 + 8.0000 7. 2.09 x 2.867 x 2.867 3. 3.4200 = 863280 860000 = 9.80514 9.805 8.6 x 105 10.09 10.09 / .0101 12. 101 8. 24.00 / 3.0 / 3.0 4. 9 - .600 = 10000 8.0 = 8 1.00 x 104 8.4 8

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