Rational vs. Irrational

Determine whether  $\pi$  is rational or irrational.

• Rational

• Irrational

Which of the following numbers is rational?

• $\sqrt{7}$

• $\frac{2}{3}$

• 3.1456289...

• $\pi$

Which of the following numbers is not rational?

• $-3$

• $2.7$

• $\sqrt{4}$

• $\sqrt{5}$

Which of the following is an irrational number?

• $\sqrt{0}$

• $\sqrt{3}$

• $1\overline{.36}$

• $-0.19$

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?

• $\sqrt{50}$

• $\sqrt{36}$

• $\sqrt{169}$

• $\sqrt{225}$

Which of the following number is rational?

• $\sqrt{127}$

• $\pi$

• $2.5$

• $8.98763...$

What kind of number is -3?

• rational
• irrational

Is 3.74 a rational number?

• yes
• no