# Lesson Worksheet: Number Operation in Scientific Notation: Positive Powers Mathematics

In this worksheet, we will practice performing arithmetic operations with numbers expressed in scientific notation with positive powers of 10.

Q1:

Express in scientific notation.

• A
• B
• C
• D
• E

Q2:

How many times larger is than ?

• A0.3 times
• B0.03 times
• C300 times
• D3 times
• E30 times

Q3:

• A
• B
• C
• D
• E

Q4:

• A
• B
• C
• D
• E

Q5:

Given that sunlight travels at a speed of m/s, determine how long it takes for sunlight to reach a planet that is 126 million kilometers away from the sun.

Q6:

How many times smaller is than ?

• A4,000,000 times
• B200,000 times
• C2,000,000 times
• D400,000 times
• E20,000,000 times

Q7:

The circumference of Earth is about km and the circumference of Jupiter is about km. How many times larger is the circumference of Jupiter than the circumference of Earth?

• A10 times
• B100 times
• C1,000 times
• D0.1 times
• E0.01 times

Q8:

The mass of the sun is about kg and the mass of Earth is about kg. To the nearest whole number, how many times larger is the mass of the sun than the mass of Earth?

• A3,333,333 times
• B333,333 times
• C33,333 times
• D333 times
• E3,333 times

Q9:

How many times larger is than ?

• A0.02 times
• B20 times
• C200 times
• D2 times
• E0.2 times

Q10:

The population of Canada is about and the population of the United States is about . How many times larger is the popuation of the United States than the population of Canada?

• A0.75 times
• B13.33 times
• C7.5 times
• D0.133 times
• E75 times

This lesson includes 10 additional questions and 63 additional question variations for subscribers.