Unit 1 (Part 1) Review

Which of the following numbers is rational?

• $\sqrt{7}$

• $\frac{2}{3}$

• 3.1456289...

• $\pi$

Which of the following numbers is not rational?

• $-3$

• $2.7$

• $\sqrt{4}$

• $\sqrt{5}$

Select ALL numbers that are irrational.

• 10

• -21

• $\pi$

• $\frac{10}{2}$

• $\sqrt{10}$

Determine which of the following examples is irrational.

• A fraction whose denominator is larger than its numerator

• A decimal that never ends but repeats

• A perfect cube root

• A decimal that never ends and never repeats

Which of the following numbers is irrational?

• $\sqrt{50}$

• $\sqrt{36}$

• $\sqrt{169}$

• $\sqrt{225}$

What kind of number is -3?

• rational
• irrational
• whole
• natural

Which number is an integer?

• -1/2
• 0.2
• 3/4
• -2

The following set of numbers are called what?
{0, 1, 2, 3....}

• Whole numbers
• Integers
• Plain Numbers
• Irrational numbers

A REPEATING decimal is what type of number?

• Rational 
• Irrational

The square root of 2 is an irrational number because...

• All square roots are irrational
• The answer is a decimal that never stops or repeats

• Two is an even number
• The answer is a decimal that never stops