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18 Cards in this Set
- Front
- Back
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All non zero digits
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Significant
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interior zeros
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Significant
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Trailing zeros after a decimal point
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Significant
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1.5
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2 sf
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1.05
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3 sf
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1.050
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4 sf
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Leading zeros
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Not Significant
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0.001050
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4 sf because it equals to 1.050x10^-3
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zeros at the end of a number without a written decimal point
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Ambiguous. Write in scientific notation
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If 150 has 2 sf
If 150 has 3 sf |
1.5x10^2
1.50x10^2 |
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Exact numbers
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Unlimited number of sf
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A number whose value is known with complete certainty
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Exact
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0.0035
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2 sf
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1.080
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4 sf
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2371
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4 sf
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2.97x10^5
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3 sf
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1 dozen=12
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Unlimited
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100,000
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Ambiguous
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