Rational/Irrational Numbers

What is a rational number ?

• A rational number  is a number that cannot be written as a fraction.
• A rational number is a number that can be written as a fraction.
• A rational number cannot be a repeating  decimal.

Tags

CCSS.5.NBT.A.2

Which number is rational below?

• √20
• √64
• 6π
• √7

Tags

CCSS.8.NS.A.1

Which of the following is irrational?

• 0.444444444

• -4/5

• π

• 0.2

Tags

CCSS.8.NS.A.1

Irrational numbers...

• reduce to π

• never end and never repeat

• can sometimes be perfect squares

• must be negative

Tags

CCSS.8.NS.A.1

A decimal that stops is which type of number? Example: 2.75

• Rational
• Irrational

Tags

CCSS.8.NS.A.1

Which of the following numbers is irrational?

• √8
• ¾
• 2
• -1.325

Tags

CCSS.8.NS.A.1

Which of the following is a rational number?

• π
• √8
• .56565656....
• √10

Tags

CCSS.8.NS.A.1

Which number is an irrational number?

• 2.5
• 5.72314.....
• -17
• 1/2

Tags

CCSS.8.NS.A.1

Which number is irrational?

• 0.416
• -8/5
• ∛64
• √27

Tags

CCSS.8.NS.A.1

.0123456789...

• Rational
• Irrational

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1