1. Rounding to Significant Figures
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2. You can round numbers to a given number of significant figures .
Important
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3. You can round numbers to a given number of significant figures .
The first significant figure is the first non zero digit in the number counting from the left.
[The usual rules for rounding, work exactly the same way]
Round the following numbers to 2 significant figures 3 6 8 3 7 4 1 8 4 1 1 5 9 9 2 1 6 3 1 4 1 6 3 1 1 4 6 1 5 3 1 2 3 1
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4. Practice
Rounding to
Significant
Figures
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5. Round the following numbers to the significant figures below:2 s f 1 4 1 3 s f 2 3 4 6 2 3 5 2 s f 1 3 4 1 3 1 s f 3 4 6 3 2 s f 3 9 1 3 5 3 9 3 s f 1 5 6 1 6 2 s f 2 4 6 2 5 2 s f 1 3 4 5 1 3 2 s f 2 5 6 7 2 6 3 s f 1 4 6 1 2 1 4 6 1 s f 7 5 8 2 s f 9 1 5 7 8 9 2
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6. Round the following numbers to the significant figures below:2 s f 3 4 8 3 5 3 s f 1 9 4 1 1 9 4 2 s f 1 9 6 2 1 s f 8 7 6 9 2 s f 1 8 9 9 1 8 3 s f 8 8 8 1 2 s f 9 9 1 9 9 2 s f 7 3 2 5 7 3 2 s f 1 1 8 7 1 2 3 s f 8 6 9 9 8 7 1 s f 5 1 5 2 s f 4 4 2 7 5 4 4
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7. Round the following numbers to the significant figures below:2 s f 9 1 8 9 2 3 s f 5 9 5 7 5 9 6 2 s f 6 4 5 6 5 1 s f 1 7 6 2 2 s f 1 8 9 9 1 8 3 s f 4 5 3 4 5 2 s f 2 9 9 3 2 s f 5 5 6 5 5 6 2 s f 9 1 2 7 9 1 3 s f 3 3 6 4 9 3 3 3 6 1 s f 1 7 2 2 s f 3 8 7 5 3 9
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8. Quick Test on
Rounding to
Significant
Figures
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9. Round the following numbers to the significant figures below:2 s f 1 4 1 3 s f 2 3 4 6 2 3 5 2 s f 1 3 4 1 3 1 s f 3 4 6 3 2 s f 3 9 1 3 5 3 9 3 s f 1 5 6 1 6 2 s f 2 4 6 2 5 2 s f 1 3 4 5 1 3 2 s f 2 5 6 7 2 6 3 s f 1 4 6 1 2 1 4 6 1 s f 7 5 8 2 s f 9 1 5 7 8 9 2
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10. Round the following numbers to the significant figures below:2 s f 3 4 8 3 5 3 s f 1 9 4 1 1 9 4 2 s f 1 9 6 2 1 s f 8 7 6 9 2 s f 1 8 9 9 1 8 3 s f 8 8 8 1 2 s f 9 9 1 9 9 2 s f 7 3 2 5 7 3 2 s f 1 1 8 7 1 2 3 s f 8 6 9 9 8 7 1 s f 5 1 5 2 s f 4 4 2 7 5 4 4
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11. Round the following numbers to the significant figures below:2 s f 9 1 8 9 2 3 s f 5 9 5 7 5 9 6 2 s f 6 4 5 6 5 1 s f 1 7 6 2 2 s f 1 8 9 9 1 8 3 s f 4 5 3 4 5 2 s f 2 9 9 3 2 s f 5 5 6 5 5 6 2 s f 9 1 2 7 9 1 3 s f 3 3 6 4 9 3 3 3 6 1 s f 1 7 2 2 s f 3 8 7 5 3 9
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12. © T Madas