# CLASSIFYING RATIONAL AND IRRATIONAL NUMBERS WORKSHEET

Question 1 :

Write the name that apply to the number given below.

√5

Question 2 :

Write the name that apply to the number given below.

-16.28

Question 3 :

Write the name that apply to the number given below.

√81 / 9

Question 4 :

Write the name that apply to the number given below.

-9

Question 5 :

Write the name that apply to the number given below.

9

Question 6 :

Write the name that apply to the number given below.

2√3

Question 7 :

Write the name that apply to the number given below.

√25

Question 8 :

Write the name that apply to the number given below.

√250 Question 1 :

Write the name that apply to the number given below.

√5

5 is in square root. It is a whole number, but it is not a perfect square.

So, √5 is irrational.

Question 2 :

Write the name that apply to the number given below.

-16.28

–16.28 is a terminating decimal.

So, -16.28 is rational.

Question 3 :

Write the name that apply to the number given below.

√81 / 9

Let us do the possible simplification in the given number.

√81 / 9  =  9 / 9

√81 / 9  =  1

So, √81 / 9 is whole, positive integer, integer, rational.

Question 4 :

Write the name that apply to the number given below.

-9

-9 is negative integer, integer, rational.

Question 5 :

Write the name that apply to the number given below.

9

9 is whole, positive integer, integer, rational.

Question 6 :

Write the name that apply to the number given below.

2√3

We have 3 in square root. 3 is a whole number, but it is not a perfect square.

So, √3 is irrational.

We already know the fact, if an irrational number is multiplied by a rational number, the product is irrational.

Hence, 2√3 is irrational.

Question 7 :

Write the name that apply to the number given below.

√25

25 is in square root. 25 is a whole number and also it is a perfect square.

So, we have

√25  =  √(5x5)  =  5

So, √25 is whole, positive integer, integer, rational.

Question 8 :

Write the name that apply to the number given below.

√250

250 is in square root. We are not sure whether 250 is a perfect square or not.

So, let us simplify the given number.

√250  =  √(5x5x5x2)

√250  =  5√(5x2)

√250  =  5√10

We have 10 in square root. 10 is a whole number, but it is not a perfect square.

So, √10 is irrational.

We already know the fact, if an irrational number is multiplied by a rational number, the product is irrational.

So, √250 is irrational.

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