Unit 1 Review: Real Numbers, Rational Exponents, Exponential

Which expression is equivalent to

 $\ ^4\sqrt{81x^8y^9}$ ?

•  $2x^4y^5$  

•  $2x^2y^{\frac{9}{4}}$  

•  $4x^2y^{\frac{9}{4}}$  

•  $4x^4y^5$  

Which set of numbers does not contain 70?

• integers
• whole numbers
• natural numbers
• irrational numbers

Which number is irrational?

• 3.14
• √2/1
• -1/3
• √16

Tags

CCSS.8.NS.A.1

Which set of numbers contains only integers?

• {-14, -0.3, 0, 2}
• {-10, 3, 5, 2.75}
• {0, 1, 2,  21/4}
• {√1, √4, √25, √81}

Which list shows the numbers in order from least to greatest?

• 
• 
• 
• 

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Explain the error

• -1.2 isn't an integer.
• -2 isn't a whole number and 3.4 isn't a rational number.
• -2 isn't a whole number and -1.2 isn't an integer.
• The numbers are graphed correctly.

According to the diagram, which statement is NOT true?

• All counting numbers are also rational numbers.

• All rational numbers are real numbers.

• All whole numbers are integers.

• All rational numbers are integers.

Check all subsets that -7 belongs to.

• Irrational

• Rational

• Integers

• Whole

• Natural

Check all subsets the number belongs to:

 $\frac{\pi}{2}$  

• Irrational

• Rational

• Integer

• Whole

• Natural

Check all subsets the number belongs to:

 $2.7$  

• Irrational

• Rational

• Integer

• Whole

• Natural