Unit 0C Test Review A

Unit 0C Test Review A

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​Integer Exponents

​Scientific and Standard Notation

Integer Exponents

Multiple Choice

Simplify

 $25^0$  

• 0

• 25

• 1

•  $-25$  

Multiple Choice

Which of the following is equivalent to

 $6^{-4}$  

•  $\left(6\right)\left(6\right)\left(6\right)\left(6\right)$  

•  $-\frac{1}{\left(6\right)\left(6\right)\left(6\right)\left(6\right)}$  

•  $-\left(6\right)\left(6\right)\left(6\right)\left(6\right)$  

•  $\frac{1}{\left(6\right)\left(6\right)\left(6\right)\left(6\right)}$  

Multiple Choice

Simplify

 $3^4$  

• 81

• 12

• 27

• 64

Multiple Choice

Simplify

 $4^{-5}$  

•  $-20$  

•  $-1024$  

•  $\frac{1}{1024}$  

•  $-\frac{1}{1024}$  

Multiple Choice

Simplify

 $2^{-3}\cdot4^2\cdot6^0$  

•  $-2$  

• 2

•  $\frac{1}{2}$  

• 128

Scientific and Standard Notation

Multiple Choice

What is $9.2304\ x\ 10^8$ written in standard notation? 

• 9,230,400,000,000

• 0.000000092304

• 923,040,000

• 0.00092304

Multiple Choice

The speed of light is 186,000 miles per second,

How would you express this number in scientific notation?

• $1.86x10^5$

• $1.86^5$

• $1.86x10^{-5}$

• $1.86x10^2$

Multiple Choice

The radius of a hydrogen atom is  $2.5\ x\ 10^{-11}$ m. 

Express this number in standard notation.

• 2,500,000,000,000

• 0.000000000025

• 0.0000000000025

• 250,000,000,000

Multiple Choice

What is $0.0000825$ written in scientific notation? 

•  $8.25\ x\ 10^5$  

•  $8.25\ x\ 10^2$  

•  $8.25\ x\ 10^{-2}$  

•  $8.25\ x\ 10^{-5}$  

Operations with Scientific Notation

Multiple Choice

FInd the sum of  $(3.4\ x\ 10^2)+(4.57\ x\ 10^3)$  and express your answer in scientific notation.

•  $7.97\ x\ 10^3$  

•  $4.91\ x\ 10^3$  

•  $7.97\ x\ 10^2$  

•  $4.91\ x\ 10^1$  

Multiple Choice

FInd the difference of  $(4.9\ x\ 10^4)-(1.33\ x\ 10^4)$  and express your answer in scientific notation.

•  $6.23\ x\ 10^4$  

•  $3.57\ x\ 10^{-4}$  

•  $3.57\ x\ 10^4$  

•  $3.57\ x\ 10^0$  

Multiple Choice

FInd the product of  $(2\ x\ 10^3)(4\ x\ 10^4)$  and express your answer in scientific notation.

•  $8\ x\ 10^7$  

•  $8\ x\ 10^{12}$  

•  $6\ x\ 10^7$  

•  $6\ x\ 10^{12}$  

Multiple Choice

FInd the quotient of  $(9.6\ x\ 10^7)\div(1.6\ x\ 10^4)$  and express your answer in scientific notation.

•  $6\ x\ 10^3$  

•  $1.536\ x\ 10^{12}$  

•  $6\ x\ 10^7$  

•  $9.6\ x\ 10^7$