Scientific Notation and Exponent Laws and Estimating Imperfect Squares

Which is greater? 1.111 x 10¹⁵ or 9.999 x 10³ ?

• They are equivalent.

• There is no way to determine which is greater. The numbers are too big to understand.

• 1.111 x 10¹⁵ is greater because of the larger exponent

• 9.999 x 10³ is greater because 9.999 is larger than 1.111

What is the main reason we sometimes write numbers in scientific notation?

• because it's a shorter way to write really long numbers

• it's the teacher's favorite way

• exponents are always easier than standard form numbers

• because elephants weigh a lot

Determine the product between 300.5 x (3 x 10⁵)

• 9.015 x 10⁷

• 901.5 x 10⁵

• 9.015 x 10⁵

• 9.15 x 10⁴

The average person blink 2.88 x 10⁴ times a day. How many times does a person blink in year (365 days)? Write your answer in scientific notation

• 367.88 x 10⁴

• 1.0512 x 10⁷

• 1051.2 x 10⁴

• 3.6788 x 10⁷

According to exponent rules, when we raise the power to a power we _______ the exponents.

• add

• subtract

• multiply

• divide

Simplify

• 8^-9

• 8^-3

• 8³

• 8⁹

• 
• 
• 
• 

• 
• 
• 
• 

(5³x²y⁴)⁰

• 5xy

• 1

• 0

• 5

(2 x 10⁹)(4 x 10^-4)

• 8 x 10¹³

• 8 x 10³⁶

• 8 x 10⁵

• 8 x 10^-36