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Exercises for Question Type 2: Rounding numbers to a specific value in significant figures - IB | RevisionDojo

IB
Question Type 2: Rounding numbers to a specific value in significant figures

Question Type 2: Rounding numbers to a specific value in significant figures Exercises

Question 1

Round $593.999$ to 4 significant figures.

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Question 2

Round $12345.67$ to $4$ significant figures.

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Question 3

Calculate $0.0678 \div 0.0034$ and round your answer to 2 significant figures.

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Question 4

Compute $5.678 \times 2.34$ and round your answer to 3 significant figures.

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Question 5

Calculate $(12.345 + 0.0067)$ and round the result to 3 significant figures.

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Question 6

Round $0.00456789$ to $2$ significant figures.

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Question 7

Express $0.000123456$ to 5 significant figures.

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Question 8

Calculate $123 \times 456.7$ and round the final result to 5 significant figures.

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Question 9

Round $9.87654$ to 3 significant figures.

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Question 10

A chemical concentration is measured as $0.034567\,\text{M}$ . Express this value to 3 significant figures.

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Question 11

The density of a sample is found by dividing its mass $78.6\,\text{g}$ by its volume $0.0452\,\text{cm}^3$ . Calculate the density and round to 4 significant figures.

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Question 12

The student is required to round a given decimal number to a specified number of significant figures, demonstrating understanding of leading zeros and rounding rules.

A measurement of a length is $0.00098765\,\text{m}$ . Round this to 2 significant figures.

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Question 13

Multiply $456.2 \times 0.00321$ and round your answer to 4 significant figures.

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Question 14

Round $0.99949$ to 3 significant figures.

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