Question 1

What is the correct scientific notation for the number 0.00785?

Accepted Answer

7.85 x 10^-3

Answer

0.00785 x 10^-2

Answer

0.785 x 10^-2

Answer

0.0785 x 10^-2

Answer

78.5 x 10^-4

Question 2

Which of the following is equivalent to the scientific notation 2.56 x 10^4?

Accepted Answer

25,600

Answer

256

Answer

0.0256

Answer

2.56

Answer

2,560

Question 3

What is the scientific notation for the number 0.00000975?

Accepted Answer

9.75 x 10^-6

Answer

0.975 x 10^-5

Answer

0.975 x 10^-7

Answer

9.75 x 10^-5

Answer

9.75 x 10^-7

Question 4

Which of the following is the correct scientific notation for the number 120,000?

Accepted Answer

1.2 x 10^5

Answer

12 x 10^4

Answer

120 x 10^3

Answer

0.012 x 10^8

Answer

0.12 x 10^6

Question 5

Which of the following is an equivalent form of the number 7.25 × 10^6?

Accepted Answer

7250000

Answer

0.0725

Answer

72500

Answer

72.5 × 10^5

Answer

72,500,000

Question 6

Which of the following is a correct representation of the number 0.00000378 in scientific notation?

Accepted Answer

3.78 × 10^-6

Answer

378 × 10^-8

Answer

0.378 × 10^-5

Answer

0.00378 × 10^-3

Answer

0.0378 × 10^-4

Question 7

Which of the following is an equivalent form of the number 6.75 × 10^2?

Accepted Answer

675

Answer

67.5 × 10^1

Answer

6750

Answer

0.00675

Answer

6.75 × 10^3

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