Math 8: Exponents and Scientific Notation

 $Simplify\ \frac{x^5}{x^3}$ 

•  $\frac{1}{x^8}$  

•  $x^2$  

•  $\frac{1}{x^2}$  

 When simplifying  $\frac{x^5}{x^2}$  what operation do you perform with the exponents?

• addition

• multiplication

• divisin

• subtraction

 $Solve\ 10^2\times10^5$  

•  $10^7$  

•  $10^2$  

•  $10^{10}$  

 $Solve\ \left(5^4\right)^2$  

•  $5^6$  

•  $5^2$  

•  $5^8$  

The first number in scientific notation must be...

• Bigger than 0 and smaller than 10

• Bigger than 1 and smaller than 10

• Bigger than 1 and smaller than 9

• Bigger than 0 and smaller than 9

Put the following in scientific notation:

23,948

• 23.948 x 10³

• 2.3948 x 10⁴

• 2.3948 x 10^-4

• 0.23948 x 10⁵

Put the following number in scientific notation

0.004362

• 4.362 x 10³

• 4.362 x 10^-3

• 0.4362 x 10^-2

• 43.62 x 10^-4

How would you write 4.3756 x 10⁴ in standard form?

• 437,560,000

• 0.00043756

• 43,756

Put the following number in scientific notation:

0.062

• $0.62\ x\ 10^{-1}$

• $62\ x\ 10^{-2}$

• $6.2\ x\ 10^{-2}$

• $6.2\ x\ 10^2$

Which of the following is correct scientific notation?

• $20.35\ x\ 10^4$

• $.2035\ x\ 10^4$

• 
  $2035^4$
  

• $2.035\ x\ 10^4$