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**Calculations with Significant Figures**

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**Review: How many significant figures**

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**How can you write seven thousand with**

1 significant figure 4 significant figures 6 significant figures

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**Round each to 3 Significant Figures**

) ) 6.561 ) ) )

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**Multiplying and Dividing**

Multiply or divide the number out as normal but round the answer to the least number of significant figures in the problem

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**Solve each with correct Sig Figs**

2.4 x = 94.20 = (5.682 x 105) x (2.87 x 104) = (2.145 x 10-5) (6.75 x 104) =

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**Addition and Subtraction**

Add or subtract as normal but round the answer with the same number of decimal places as the quantity in the calculation having the least

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**Solve each with correct Sig Figs**

5.44 – –

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