Free Whole Numbers 02 Practice Test - 6th grade 

Question 1

The set of counting numbers starting with 1 and continuing 2,3,4.....and so on are called _____.

A.

Natural Numbers

B.

Whole Numbers

C.

Integers

D.

Composite Numbers

SOLUTION

Solution : A

The set of counting numbers starting with 1 and continuing 2,3,4.....and so on are called Natural Numbers.

Question 2

Product of two whole numbers is always a  ________

A.

Natural Number

B.

Whole Number

C.

Prime Number

D.

Composite Number

SOLUTION

Solution : B

Product of any two whole numbers is always a Whole Number.

For eg: If we multiply two numbers say 5 and 7, 5×7=35, 35 is also a whole number.

Question 3

A cat is at number 3. A rat is at number 10. Assuming both are standing on a number line, how far is the rat from the cat?

A.

5

B.

4

C.

3

D.

7

SOLUTION

Solution : D

The difference between two consecutive numbers is 1 and let's consider this difference to be a one step.
The cat is at number 3 and the rat is at number 10. The difference between 10 and 3 is 7, therefore the rat is 7 steps away from the cat.

Question 4

How many whole numbers are there between 9876 and 9900?

A.

24

B.

25

C.

23

D.

26

SOLUTION

Solution : C

The number of whole numbers between any two numbers
=  (the difference between the numbers) -1.

The difference between 9900 - 9876 is 24 and 24 -1 = 23.

So, there are 23 whole numbers are there between 9876 and 9900.

Question 5

Which of the following numbers when represented in the form of dots will give the figure of a line, rectangle and a square?

A.

2

B.

3

C.

4

D.

5

SOLUTION

Solution : C

4, when represented as four dots, can result in a line, rectangle and a square.

Every square is a rectangle.

Question 6

In the set of natural numbers, ___ is the smallest number. (Answer in numerical form)

SOLUTION

Solution :

Natural numbers are counting numbers. The natural numbers start with 1. So 1 is the smallest number possible in natural numbers.

Question 7

12×35 can be written as 12× ( ___+ 15)

SOLUTION

Solution :

Using distributive property

12 times 35 = 12 times (20+15)

Question 8

Rahul says to Shyam that any number divided by zero is undefined. Is the statement given by Rahul is correct?

A.

True

B.

False

SOLUTION

Solution : A

If you divide something by 2 you divide that thing into 2 parts. If you divide something by 4 you divide that thing into 4 parts. Now if you divide something by 0, you cannot divide that thing into 0 parts. So a division by 0 is undefined and Rahul is correct.

Question 9

The sum (267 + 345) + 21 is same as the sum 267 + (345 + 21).

A.

True

B.

False

SOLUTION

Solution : A

Associative Property states: When three or more numbers are added, the sum is the same regardless of the order of addition. The property states that for all real numbers a, b, and c, their sum is always the same, regardless of their grouping. (a+b)+c = a+ (b+c)


So (267 + 345) + 21 and 267 + (345 + 21) will give the same result = 633.

Question 10

117 + 9 = 117 + 10 - 1 = 127 - 1

Is the above expression is correct?

A.

True

B.

False

SOLUTION

Solution : A

Yes it is correct.

9 can be written as 10 - 1

So 117 + 9 = 117 + 10 - 1

Again (117+ 10) = 127, so (117+ 10) - 1 = 127 - 1 

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