Scientific Notation Test Review

​Multiplying with Decimals

Multiple Choice

5.2 X 4.6

• 2.392

• 23.92

• 24.25

• 2392

Multiple Choice

5.78 x 3.5

• 0.223
• 2.23
• 22.3
• 20.23

​Now let's use it with Scientific Notation

But first let's make sure we know what scientific notation looks like. ​

Multiple Choice

Which of the following is correct scientific notation?

• 20.35 x 10⁴
• .2035 x 10⁴
• 2035 ⁴
• 2.035 x10⁴

Multiple Choice

Multiply and put your answer in scientific notation:

(3.4 x 10⁵)(1.2 x 10^-3)

• 4.08 x 10^-8
• 4.8 x 10²
• 4.08 x 10²
• 4.08 x 10^-15

Multiple Choice

On average a person breathes 7.92 x 10⁶ times in a year. There are about 7,600,000,000 people in the world. Use this to find the total number of breathes taken in the world in a single year.

• 1.04 x 10³

• 3.2 x 10¹⁴

• 6.0192 x 10¹⁶

• 6.0192 x 10¹⁵

​

​Dividing with Decimals

Multiple Choice

Divide:   $$\frac{7.56}{3.6}$$  

• 11.47
• 5.7

• 2.1

• 10.93

Multiple Choice

Divide: $$\frac{3.6}{4}$$  

• 0.9

• 9

• .09

• 4.2

​Now let's use it with Scientific Notation

Multiple Choice

Divide and put your answer in scientific notation:

5 x 10¹² ------------ 2 x 10⁶

• 2.5 x 10²
• 2.5 x 10⁶
• 3 x 10²
• 2.5 x 10¹⁸

​Adding and Subtracting in Scientific Notation

Multiple Choice

(8 x 10⁴) - (2 x 10⁴)

• 16 x 10¹⁶
• 16 x 10⁸
• 6 x 10⁸
• 6 x 10⁴

Multiple Choice

(2.3 x 10²)+(4.1 x 10²)=

• 6.4 x 10⁴
• 6.4 x 10²
• 6.4 x 10⁰
• .64 x 10¹

Multiple Choice

An average drop of water has 1.2 x 10⁶ bacteria. A drop of bottled water has 1 x 10⁶ bacteria. What is the difference in the number of bacteria in an average drop of water and the number of bacteria in a drop of bottled water? Answer in scientific notation.

• .2 x 10¹²

• 2 x 10⁶

• 20 x 10⁴

• 2 x 10⁵

​Power Rules

Multiple Choice

(8⁵)³

• 8⁸
• 8¹⁵
• 8²
• 1/8²

Multiple Choice

$$365^0=$$  

• 0

• 1

• 365

• $$\frac{1}{365}$$  

Multiple Choice

x³⋅x² =

• x⁵

• x⁶

• x⁹

• x¹

Multiple Choice

5. Simplify the exponents. (6w)⁴

• 24w⁴

• 24w⁴

• 6⁴w⁴

• 24w5

Multiple Choice

Rewrite using a positive exponent.
w^-13

• -w¹³
• ¹/_w¹³
• ¹/_w^-13
• w¹³

Multiple Choice

Simplify

• y²
• y³⁵
• y¹²
• y¹⁴

Multiple Choice

Simplify the expression.

• 7⁶
• 7^-5
• 1/7⁵
• 7⁵