Rational and 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 irrational?

• 9.6
• √45
• 3/8
• 3.4 x 10 ⁵

Tags

CCSS.8.EE.A.2

CCSS.8.NS.A.1

-17.565

• Rational
• Irrational

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CCSS.6.NS.C.6

CCSS.6.NS.C.7

Put the following numbers in order from least to greatest.
1/2, 2, -0.4, √25, √10

• √25, √10, 2, 1/2, -0.4
• -0.4, 1/2, √10, 2, √25
• -0.4, 1/2, 2, √10, √25
• 1/2, -0.4, 2, √10, √25

Tags

CCSS.8.NS.A.2

Put in order of least to greatest.
√5, 3, 2½, √8

• 3, 2½, √8, √5
• 2½, 3, √5, √8
• √5, 3, 2½, √8
• √5, 2½, √8, 3

Tags

CCSS.8.NS.A.2

Order the numbers from least to greatest.

• -1 1/4,  -1 1/5,  -0.99,  1 13/20,  1.8
• -1 1/4,  -1 1/5,  -0.99, 1.8,  1 13/20
• -0.99,  -1 1/5,  -1 1/4,  1.8,  1 13/20
• -1 1/5,  -1 1/4,  -0.99,  1 13/20,  1.8

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

Which is GREATER?
2⁷ or 7²

• 2⁷
• 7²
• Neither, they are equal

Tags

CCSS.1.NBT.B.3

The √98 falls between what two numbers on a number line?

• 10 and 11
• 11 and 12
• 9 and 10
• 90 and 100

Tags

CCSS.8.NS.A.2

Estimate the square root.

• 4

• 5

• 6

• 7

Tags

CCSS.8.NS.A.2