Review and two-way tables

Multiply:

(4 x 10⁵)(5 x 10^-3)

• 20 x 10²

• 20 x 10^-8

• 2 x 10³

• 2 x 10

Solve:

(6 x 10⁶) / (2 x 10³)

• 12 x 10³

• 3 x 10⁹

• 1.2 x 10¹⁰

• 3 x 10³

Write the answer in scientific notation.
5 x 10⁸ -   3.4 x 10⁸  =

• 2.4 x 10⁸
• 2.4 x 10⁰
• 1.6 x 10⁰
• 1.6 x 10⁸

Write the answer in scientific notation.
7.3 x 10⁵  +   3.7 x 10⁵  =

• 11.0 x 10⁵
• 1.1 x 10¹⁰
• 1.1 x 10¹¹
• 1.1 x 10 ⁶

Solve:

(9 x 10^-6) (3 x 10^-3)

• 27 x 10^-9

• 3 x 10^-3

• 2.7 x 10^-8

• 2.7 x 10^-10

Solve:
(2.1×10​²​​) × (3.0×10​⁴)

• 5.1 x 10²
• 6.3 x 10⁶
• 5.1 x 10⁶
• 6.3 x 10⁸

Write the answer in scientific notation.
4.1 x 10⁵ +   5.5 x 10⁶  =

• 5.91 x 10⁶
• 9.6 x 10⁵
• 9.6 x 10¹¹
• 4.65 x 10⁵

(9.6×10^-8)÷(2×10^-15)

• -4.8×10⁷

• 4.8×10⁷

• 4.8×10^-7

• 4.8×10^-23

Find the difference
(3.8 x 10⁴) - (2 x 10³)

• 1.8 x 10⁴
• 1.8 x 10¹
• 3.6 x 10¹
• 3.6 x 10⁴

Solve:
(6.0 x 10⁴) + (3.0 x 10⁴)

• 9.0 x 10⁴
• 3.0 x 10⁴
• 9.0 x 10⁸
• 3.0 x 10⁰