Numbers & Units Practice

How would you write 564,000,000 in scientific notation?

• 5.64 x 10^-7
• 5.64 x 10⁶
• 5.64 x 10⁸
• 56.4 x 10⁷

Express the following in scientific notation:
.000457

• 457 x 10⁶
• 457 x 10^-6
• 4.57 x10⁴
• 4.57 x 10^-4

The closest galaxy to our own is over 2,500,000 light years away.  Write this number is scientific notation.

• 2.5 x 10⁷
• .25 x 10⁷
• 25 x 10⁵
• 2.5 x 10⁶

(2 x 10⁹)(4 x 10^-4)

• 8 x 10¹³
• 8 x 10³⁶
• 8 x 10⁵
• 8 x 10^-36

Divide:
(6.9 x 10⁷) / (2.3 x 10^-3)

• 3 x 10¹⁰
• 3 x 10⁴
• 3 x 10^-4
• 3 x 10^-11

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

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

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

Convert to standard notation:
2.4 x 10^-3 

• 2400
• 0.24
• 0.024
• 0.0024

Convert 35,000 mg to kg

• 0.035 kg

• 0.35 kg

• 3.5 kg

• 35 kg

240 cm = ___________ m

• 2400
• 24
• 2.4
• 0.24