Significant Figures & Scientific Notation Skill Evaluation Test

The number 0.00052 has how many significant figures?

• 2

• 3

• 4

• 5

Which of the following numbers has four significant figures?

• 2340

• 0.0234

• 2.340

• 0.00234

The number 150,000,000 (One hundred fifty million) written in scientific notation is:

• 1.5 × 10^8

• 1.50 × 10^8

• 1.500 × 10^8

• 1.5000 × 10^8

When rounding the number 6.739 to three significant figures, the result is:

• 6.7

• 6.74

• 6.73

• 6.740

The result of a calculation should never have more significant figures than:

• Any of the numbers used in the calculation

• The number with the fewest significant figures used in the calculation

• The number with the most significant figures used in the calculation

• The number with the most decimal places used in the calculation

When rounding the number 7.8965 to two decimal places, the result is:

• 7.89

• 7.90

• 7.80

• 7.896500

What are significant figures?

• Digits that are not zeros

• Digits that are not zeros and the first non-zero digit to the left of the decimal point

• Digits that are not zeros and zeros between non-zero digits

• Digits that are not zeros and zeros to the right of the decimal point

What is the result of (5.30 + 3.789) to three significant figures?

• 9.09

• 9.089

• 9.10

• 9.08

What is the result of (6.45 × 4.23) to three significant figures?

• 27.286

• 27.3

• 27.29

• 27

What is the result of (2.342 - 0.015) to three decimal places?

• 2.33

• 2.327

• 2.32

• 2.3275