Converting to Scientific Notation Examples!

What is the primary purpose of scientific notation?

• To simplify calculations with small numbers.

• To express very large or very small numbers conveniently.

• To represent numbers using only prime factors.

• To convert all numbers into fractions.

The population of Arizona is 7,200,000. How is this number expressed in scientific notation?

• 7.2 x 10^5

• 7.2 x 10^6

• 72 x 10^5

• 0.72 x 10^7

When a very large number is written in scientific notation, what is true about the exponent of 10?

• It is always negative.

• It is always positive.

• It can be positive or negative depending on the number of decimal places.

• It is always zero.

Express the value 29,700,000,000 in scientific notation.

• 2.97 x 10^9

• 2.97 x 10^10

• 29.7 x 10^9

• 297 x 10^8