significant number questions with solutions

Showing 1–10 of 49 questions

• MCQeasyUnit dimension and errorsignificant number

  The number 5000 is required to be expressed with exactly 2 significant figures. The correct form is:

  Options

  • Option A

    5 × 10³

  • Option B

    5.0 × 10³

  • Option C

    5.00 × 10³

  • Option D

    50.0 × 10³

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• MCQeasyUnit dimension and errorsignificant number

  Evaluate 100.0 - 0.56 according to the addition/subtraction rule.

  Options

  • Option A

    99.44

  • Option B

    99.4

  • Option C

    99

  • Option D

    99.440

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• MCQeasyUnit dimension and errorsignificant number

  The measured lengths are 2.35 m, 1.2 m and 0.456 m. Their sum, reported correctly, is:

  Options

  • Option A

    4.006 m

  • Option B

    4.01 m

  • Option C

    4.0 m

  • Option D

    4 m

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• MCQeasyUnit dimension and errorsignificant number

  A person measures three masses as 435.42 g, 226.3 g and 0.125 g. According to the rules of significant figures, their sum should be reported as:

  Options

  • Option A

    661.845 g

  • Option B

    661.84 g

  • Option C

    661.8 g

  • Option D

    662 g

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• MCQeasyUnit dimension and errorsignificant number

  For the mathematical constant π used without approximation, the number of significant figures is:

  Options

  • Option A

    1

  • Option B

    3

  • Option C

    4

  • Option D

    Infinite

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• MCQeasyUnit dimension and errorsignificant number

  The number 2.300 × 10⁵ contains how many significant figures?

  Options

  • Option A

    2

  • Option B

    3

  • Option C

    4

  • Option D

    5

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• IntegereasyUnit dimension and errorsignificant number

  Enter the number of significant figures in 0.0030400.

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• MCQeasyUnit dimension and errorsignificant number

  Using significant-figure rules, evaluate 15.0 ÷ 4.2.

  Options

  • Option A

    3.571

  • Option B

    3.57

  • Option C

    3.6

  • Option D

    4

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• MCQeasyUnit dimension and errorsignificant number

  The number of significant figures in 0.0050600 is:

  Options

  • Option A

    3

  • Option B

    4

  • Option C

    5

  • Option D

    6

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• IntegereasyUnit dimension and errorsignificant number

  The product 3.0 × 4.00 is reported using correct significant figures. Enter the number of significant figures in the final answer.

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