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

What type of number is π ?

• Rational
• Irrational

Tags

CCSS.8.NS.A.1

CCSS.8.NS.A.2

Which number is rational below?

• √20
• √64
• 6π
• √7

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

√4

• irrational
• rational

Tags

CCSS.8.NS.A.1

CCSS.8.EE.A.2

√7

• Rational 
• Irrational
• real
• fake

Tags

CCSS.8.NS.A.1

CCSS.8.NS.A.2

-17.5

• Rational
• Irrational
• real
• fake

Tags

CCSS.8.NS.A.1

.141414141414...

• Rational 
• Irrational 
• real
• fake

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

What does this number belong to: 
a terminating decimal

• Rational Number
• Irrational Number

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

5/2

• Rational
• Irrational

Tags

CCSS.8.NS.A.1