Real Numbers

What is another name for the counting numbers?

• Basic

• Natural

• Obvious

• Easy

A rational number _____ be written as a fraction. If it is written as a decimal, the decimal ________ or _______ .

• Cannot; never terminates; never repeats.

• Cannot; terminates; repeats

• Can; terminates; repeats

• Can; terminates; never repeats

Irrational numbers _______ be written as fractions. If they are written as decimals, the decimals ________ and _______ .

• Cannot; never terminate; never repeat

• Cannot; terminate; never repeat

• Can; terminate; repeat

• Can; never terminate; repeat

Whole numbers are the natural numbers and _____.

• Negative numbers

• Fractions

• Zero

• Non-terminating decimals

What set do the numbers 0, 95, and √144 belong to?

• Natural

• Integer

• Whole

• Rational

Which of the following numbers is NOT an integer?

• - √36

• 0

• 8/4

• -0.15

Which list shows only natural numbers?

• 0, 1, 2, 3, 4, ...

• 1, 2, 3, 4, ...

• -3, -2, -1, 0, 1, 2, 3, ...

• All numbers are natural numbers

To which of the following sets of numbers does √196 belong?

I. Natural Numbers

II. Integers

III. Rational Numbers

IV. Irrational Numbers

• I only

• I, II, and III only

• III only

• IV only

True or False: If a number is classified as an integer, it must also be a whole number.

• True

• False

True or False: The set of irrational numbers is a subset of rational numbers.

• True

• False