Interpreting Integers and Rational Numbers

• A

• B

• C

• D

• A

• B

• C

• D

Which answer choice best describes the set of numbers? 3.1 , -1/2 , 1/3, 21.6 , -5.8

• Rational numbers

• Integers and rational numbers

• Whole numbers, integers, rational numbers

• Natural numbers

Malik and Josh are sorting rational numbers into the graphic organizer above. Which student identified and organized the numbers incorrectly? How should he fix his answer?

• Malik is incorrect.

  7 ½ is not an integer

  6.1 is not a whole number

• Malik is correct.

  7 ½ is an integer

  6.1 is a whole number

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

Which numbers below are all elements of the set of rational numbers only?

• 6; -3; 0; √9

• π; √67; 7.8475482051...

• 83; 21; 3; 948

• 2.4217̅; ⅚; -0.86; 3.14

Which of the following numbers is NOT an integer?

• - √36

• 0

• 8/4

• -0.15

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

Which statement is NOT true about rational numbers?

• All integers are rational numbers.

• Rational numbers include repeating and terminating decimals.

• All rational numbers can be written as fractions, as long as the denominator is not 0.

• The numbers π and √3 are rational numbers.

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

• True

• False