classify numbers

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

• Rational
• Irrational
• None of these

Which of the following is irrational?

• Square root of 81
• Square root of 9
• Square root of 144
• Square root of 12

Which statement is NOT true?

• Every rational number is a real number.
• Every counting number is a whole number.
• Every integer is a rational number.
• Every decimal number is an irrational number.

Which set of numbers contains only integers?

• {-14, -0.3, 0, 2}
• {-10, 3, 5, 2.75}
• {0, 1, 2,  21/4}
• {√1, √4, √25, √81}

Classify 0

• Whole
• Integer
• Rational
• All of the above

Explain the error

• -1.2 isn't an integer.
• -2 isn't a whole number and 3.4 isn't a rational number.
• -2 isn't a whole number and -1.2 isn't an integer.
• The numbers are graphed correctly.

Is 8.27 rational or irrational?

• Rational
• Irrational
• Both
• None of the above

What is the definition of an integer

• All positive and negative whole numbers
• Decimals or fractions that terminate for repeat
• All positive whole numbers
• 0

0.8 is a rational number

• True
• False

Classify $\frac{3}{5}$  

• Irrational

• Rational

• Integer

• Whole

• Natural