Adding and Subtracting in Scientific Notation

Give the sum in scientific notation.

(2.6 x 10⁶) + (4.2 x 10⁶)

• 6.8 x 10⁶

• 6.8 x 10¹²

• 8.4 x 10⁶

• 3.2 x 10¹²

Give the sum in scientific notation.

(4.8 x 10⁸) + (5.4 x 10⁸)

• 1.02 x 10⁸

• 1.02 x 10⁹

• 9.2 x 10⁸

Give the sum in scientific notation.

(8.7 x 10⁵) + (7.32 x 10⁷)

• 16.02 x 10⁷

• 7.407 x 10⁵

• 7.407 x 10⁷

• 1.602 x 10⁷

Give the difference in scientific notation.

(9.87 x 10⁷) - (7.42 x 10⁷)

• 2.45 x 10⁰

• 3.5 x 10⁷

• 2.45 x 10⁷

• 17.29 x 10⁷

Give the difference in scientific notation.

(7.2 x 10⁷) - (4.5 x 10⁷)

• 2.7 x 10⁷

• 2.7 x 10⁰

• 1.17 x 10⁷

• 1.17 x 10⁷

Give the difference in scientific notation.

(8.7 x 10⁹) - (2.5 x 10⁷)

• 6.2 x 10²

• 6.2 x 10⁹

• 7.23 x 10⁷

• 8.675 x 10⁹

Multiply. Give the product in scientific notation.

(9.6×10³) × (6.7×10²)

• 64.32×10⁵

• 6.432×10⁶

• 64.32×10⁶

• 64.32×103

Divide. Give the quotient in scientific notation.

(3 x 10^-5)/(4 x 10²)

• .75 x 10^-3

• 7.5 x 10^-8

• .75 x 10^-7

•  7 x 10²