Test: Whole Numbers - Class 6 MCQ

Natural numbers include all positive numbers starting from 1. Whole numbers include all natural numbers along with 0.

The result is that natural numbers are a subset or a part of whole numbers.

Whole number 0 does not have a predecessor. because, every number smaller than zero are categorised in negative numbers and not whole number.

 1 is the multiplicative identity.

To form the greatest number (without repetition of digits) from the given digits, write them in descending order and place commas after periods.

To form the smallest number (without repetition of digits) from the given digits, write them in ascending order and place commas after periods. Remember that a number cannot start with 0 in the leftmost place.

105689 is the smallest 6 - digit number of the given digit is 9 , 6 , 0 , 5 , 8 , 1 .

238 ÷ 238 = 1 

So option D is the correct answer. 

The correct option is C 0.
We are asked to find the additive identity of 24. For that, first, we should calculate the additive inverse of 24. We know that the additive inverse of a number is its negative. So, the additive inverse of 24 is equal to -24.
Now, we know that the additive identity for a number x, is a number which is obtained when x is added to its additive inverse. So, to find the additive identity of 24, we will add it to its additive inverse, i.e. -24.
So, we get: Additive identity = 24 + (-24)
= 24 – 24
= 0

Option b is correct answer. 

301,999 + 1 = 302,000

The associative property is a math rule that says that the way in which factors are grouped in a multiplication problem does not change the product.

So, 6x(7×3)=(6×7)×3 is an example of Associative property of multiplication. 

So option A is the correct option. 

The two consecutive numbers after 5009 are :

5010, 5011

So option C is the correct answer. 

Addition and multiplication of whole numbers satisfy closure property.
as 2+3 = 5 and 3+2 = 5
and 2x3 = 6  and 3x2 = 6

a ÷ 1 = a. A number divided by 1 is the number itself.

a×0 = 0. The product of any number and zero is zero.

There is no predecessor for natural number 1.

Natural numbers set is {1,2,3,.......}. Whole numbers set is {0,1,2,3,,.....}. Clearly, every natural number is a whole number.

Just use the associative property
ax(b-c) =a x b - a x c
36 × (8-3) = (36 × 8) - (36 × 3)

The correct option is C Closure property
The closure property of addition states: If a and b are whole numbers, then the answer of a + b will also be a whole number.

a=23

b=23

So 23-23=0

Therefore,commutative law is only and only applicable to subtraction if and only if a=b

 555 × 193 - 555 × 93 = 55500
or take 555 common
555 ( 193 - 93 ) = 555 x 100 = 55500