Significant Figures And Rounding

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| By Shuling
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Shuling
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Quizzes Created: 6 | Total Attempts: 14,588
| Attempts: 748
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  • 1/15 Questions

    Tell how many significant figures are in:  7108 cm

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About This Quiz

In mathematics, significant figures are numerical digits that carry and add up to its measurement resolution. Rounding off, on the other hand, is turning decimals and fractions into the closest whole number. Find out more below.

Significant Figures And Rounding - Quiz

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  • 2. 

    Tell how many significant figures are in:  .0058 cm

    Explanation
    Leading zeros are not significant

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  • 3. 

    Tell how many significant figures are in:  31.0 cm

    Explanation
    Zeros at the end and right of the decimal point are significant

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  • 4. 

    Tell how many significant figures are in:  14500 cm

    Explanation
    Trailing zeros are not significant

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  • 5. 

    Tell how many significant figures are in:  14.600 cm

    Explanation
    Zero at the end and right of the decimal point is significant, the zero after the 6 is surrounded by significant figures.

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  • 6. 

    46.4 cm x 18.2 cm x 3.8 cm = ? cubic centimeters. (leave the units off, no comma)

    Explanation
    You are allowed 2 sig. figs, trailing zeros do not count but MUST be written or the decimal point will be in the wrong place.

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  • 7. 

    .88 cm + 2.291 cm = ? cm

    Explanation
    Round to the nearest 1/100th because of .88

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  • 8. 

    14.0 g / 8.10 cm3 = ? g/cm3

    Explanation
    Each of the numbers had 3 sig. figs.

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  • 9. 

    5100 m x 12.33 m = ? square meters (no comma)

    Explanation
    5100 has 2 sig. figs. so answer must be rounded to 2 sig. figs. You must include trailing zeros to get decimal point in right place.

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  • 10. 

    27.0 m / 3.568 s = ?  m/s

    Explanation
    27.0 has 3 sig. figs., you are allowed 3 in your answer. 7.567 rounds up to 7.57.

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  • 11. 

    93.1 kg - 85 kg = ? kg

    Explanation
    round to the nearest kg (ones column) due to the fact that 85 kg is listed to the nearest kg (ones)

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  • 12. 

    .81 g + 158 g = ? g

    Explanation
    158 is to the nearest g (ones column) so answer goes to the ones column.

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  • 13. 

    64.07 m - 1.3 m = ? m (this is different math!)

    Explanation
    round to nearest 1/10th

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  • 14. 

    16.2 g - 9.20 g = ? g

    Explanation
    round to nearest 1/10th

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  • 15. 

    .0034 cm x .056 cm = ? square centimeters.

    Explanation
    leading zeros are not significant but must be written or the decimal point will be in the wrong place

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Quiz Review Timeline (Updated): Dec 6, 2024 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Dec 06, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 17, 2013
    Quiz Created by
    Shuling
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