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Scientific Notation

In this topic, we learn to express large and small numbers in scientific notation and to compare two numbers written in scientific notation
Practice Question
1

Earth’s average distance from the sun is 93,000,000 miles. Write 93,000,000 in scientific notation.

 
Possible Answers
Your Answer
Correct Answer
A)

93 x 106
B)

930 x 105
C)

9.3 x 107
D)

0.93 x 108
Practice Question
2

The diameter of a red blood cell is about 0.000007 meters. Write that number in scientific notation.

 
Possible Answers
Your Answer
Correct Answer
A)

7 x 10-5
B)

0.7 x 10-6
C)

7 x 10-6
D)

70 x 10-5
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