Math Test Unit 1

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 ratio.
• A rational number cannot be a repeating  decimal.

Irrational Numbers....

• cannot be represented as a simple fraction
• can be represented as a fraction
• can be a repeating decimal

Which number is a rational number ?

• 1/4
• π
• √3
• ∛25

Which number is irrational?

• 9.6
• √45
• 3/8
• 3.4 x 10 ⁵

√4

• irrational
• rational

4π

• rational
• irrational

0.33333 is considered a ________ decimal

• repeating
• terminating

Convert 2/5 from a fraction to a decimal.

• .02
• .04
• .2
• .4

Convert  0.75  to fraction form.

• 3/6
• 3/4
• 2/6
• 1/4

• A, B, C
• B, C, A
• C, A, B
• A, C, B