Real number system

Which of the following is a natural number?

• -1

• 0

• 1

• 1/2

Which of the following is a whole number?

• -1

• 0

• 1/2

• 3/4

Which of the following is a rational number?

• π

• √2

• 1/3

• √5

Which of the following is a real number?

• -5

• 13/4

• π

• All of the above

How can whole numbers be described?

• Natural numbers with the addition of zero

• Natural numbers with the addition of one

• Natural numbers with the addition of negative numbers

• Natural numbers with the addition of fractions

Which of the following is true about whole numbers?

• They are always positive

• They include zero

• They include fractions

• They include decimals

Which of the following is an example of an integer?

• 0.5

• -2

• 1/3

• 2.5

What is the integer that comes after 2?

• 1

• 3

• 0

• -1

Which of the following is NOT a positive integer?

• 3

• 1

• -1

• 2

Which of the following is an example of a rational number?

• √2

• π

• 1/2

• e