Review of Scientific Notation & Laws of Exponents-Review sheet answers

Write the number 32,500,000 in scientific notation.

• 3.25 x 10⁷

• 325 x 10⁵

• 3.25 x 10⁵

• 32.5 x 10⁶

Write the number 12,000 in scientific notation

• 1.2 x 10^-4

• 12 x 10³

• 1.2 x 10³

• 1.2 x 10⁴

Write the number 0.000892 in scientific notation.

• 8.92 x 10⁴

• .892 x 10^-3

• 8.92 x 10^-4

• 8.92 x 10^-3

Write 0.0000000602 in scientific notation.

• 6.02 x 10^-9

• 6.02 x 10^-8

• 6.02 x 10⁸

• 6.02 x 10⁹

Write in standard form: 2.43 x 10⁵

• 243

• 2,430

• 24,300,000

• 243,000

Write -3.2 x 10³ in standard form

• -3,200

• 0.0032

• 0.00032

• -3.2

Write 5.12 x 10^-4 in standard form.

• -51,200

• 0.000512

• 0.0000512

• -512,000

Select the correct work AND correct answer (2 choices):

(4.2 x 10⁵) (1.6 x 10³)

• (4.2 x 1.6) x (10⁵ x 10³)

• 6.72 x 10⁸

• (4.2 x 1.6) x (10⁵ + 10³)

• 6.72 x 10¹⁵

Select the correct work AND correct answer (2 choices):

(9.5 x 10⁶)+ (6.4 x 10⁷)

• (.95 + 6.4) x (10⁷)

• 7.35 x 10⁷

• (9.5 + 6.4) x (10⁶ + 10⁷)

• 15.9 x 10¹³