# Significant Figures

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The problem is 150 - 1 - 0.182

Since the least sig. fig. is 1 would the answer be 1 x 10^3 ?Thanks

• Significant Figures -

Well, it have no decimal places so I don't know how many significant figure should the answer be

• Significant Figures -

150
-1
- .182

The answer is 150. Since the zero in the one column is not significant, you cannot subtract the 1, nor the .182

Remember the problem is really this:
(150±5)-(1±.05)-(0.182±0.0005)
and the answer is...(150±5) which in significant figure notation is 150

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