Unit 8 Classifying Real Numbers Practice

Front

Which of these is an example of an integer? Options: 33, 3.3, √3, 1∕3

Back

33 is an integer because it is a whole number without a fractional part.

Front

Which of these is an example of an irrational number? Options: √2, √1, √9, √25

Back

√2 is an irrational number because it cannot be expressed as a ratio of two integers.

Front

_____________ is a whole number that is not a fraction.

Back

An integer is a whole number that is not a fraction.

Front

_____________ number is a number that cannot be written as a ratio of two integers.

Back

An irrational number is a number that cannot be written as a ratio of two integers.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

Give an example of a rational number.

Back

1/2 is a rational number because it can be expressed as a fraction.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot.

Front

What is an example of an integer?

Back

-5, 0, and 7 are all examples of integers.

Front

What is the square root of 9?

Back

The square root of 9 is 3, which is an integer.

Front

What is the square root of 2?

Back

The square root of 2 is an irrational number.