Exploring Adding and Subtracting Rational Expressions

What is the primary purpose of scientific notation?

• To make numbers look more complex

• To simplify the writing of very large or very small numbers

• To confuse students

• To avoid using decimals

How many times do you move the decimal place to convert 284,000 to scientific notation?

• 6 times

• 3 times

• 4 times

• 5 times

What is the scientific notation for 0.0000268?

• 2.68 x 10^6

• 2.68 x 10^-6

• 2.68 x 10^5

• 2.68 x 10^-5

Convert 7,500,000 to scientific notation.

• 7.5 x 10^6

• 7.5 x 10^7

• 7.5 x 10^5

• 7.5 x 10^8

What is 8.52 x 10^-3 in standard form?

• 0.00852

• 8520

• 8.52

• 0.000852

Convert 2.54 x 10^2 to standard form.

• 2540

• 0.254

• 254

• 25.4

What is the result of adding 3.4 x 10^2 and 5.2 x 10^2?

• 8.6 x 10^3

• 8.6 x 10^1

• 8.6 x 10^4

• 8.6 x 10^2

How do you handle exponents when multiplying in scientific notation?

• Subtract the exponents

• Add the exponents

• Multiply the exponents

• Divide the exponents

What is the product of 2.8 x 10^7 and 1.9 x 10^4?

• 5.32 x 10^11

• 5.32 x 10^10

• 5.32 x 10^12

• 5.32 x 10^9

What is the quotient of 3.72 x 10^8 divided by 1.2 x 10^5?

• 3.1 x 10^4

• 3.1 x 10^3

• 3.1 x 10^2

• 3.1 x 10^1