Scientific Math (Notation, estimation, equations)

Rewrite in scientific notation: 12,000,000

• 12.0  x  10⁷
• 0.12  x  10⁷
• 1.2  x  10⁶
• 1.2  x  10⁷

Rewrite in scientific notation:  450,000

• 4.5  x  10⁵
• 45  x  10⁵
• 4.5  x  10⁴
• 4.5  x  10⁶

Rewrite in scientific notation:  0.000398

• 39.8  x  10^-5
• 3.98  x  10^-5
• 3.98  x  10^-4
• 39.8  x  10^-6

Rewrite in scientific notation: 0.004078

• 4.078  x  10^-3
• 4.078  x  10³
• 40.78  x  10^-4
• .4078  x  10^-2

Rewrite in scientific notation: 125,678,000

• 1.25678  x  10¹²
• .125678  x  10^-9
• 12.5678  x  10⁸
• 1.25678  x  10⁸

Which number is correctly written in scientific notation?

• 5.67 x 10⁵
• 56.7 x 10³
• 0.567 x 10⁶

Which number is correctly written in scientific notation?

• 8.2 x 10²
• 82 x 10⁷
• 3.45 x 9⁴

What is the answer to the equation:
(9.4 x 10⁶) * (3.2 x 10⁵) = ?

Write the answer in proper scientific notation.

• 30.1 x 10¹¹

• 3.8 x 10¹
• 3.0 x 10¹²

• 2.9 x 10¹

What is the answer to the equation:
(3.4 x 10⁵) * (1.2 x 10^-3) = ?

Write the answer in scientific notation.

• 4.1 x 10^-8

• 4.8 x 10²
• 4.1 x 10²

• 4.1 x 10^-15

Which of the following numbers is the smallest?
1.3 x 10²⁰
2.9 x 10²¹
9.5 x 10³²
8.4 x 10¹⁹

• 1.3 x 10²⁰
• 2.9 x 10²¹
• 9.5 x 10³²
• 8.4 x 10¹⁹