Question 4 :
Commutativity and associativity are properties of addition for natural numbers and whole numbers both.
Question 9 :
The sum of an even number and an odd number is odd number.
Question 12 :
The whole number which does not have a predecessor in whole number system is
Question 13 :
The number of whole numbers between the smallest whole number and the greatest 2-digit number is
Question 15 :
The sum of the successor of the greatest 3-digit number and the predecessor of the smallest 3-digit number is
Question 16 :
Using a number line, write the numbers -15, 7, 0, -8 and -3 in ascending order of value.
Question 22 :
If a and b are any two whole numbers, then a + b is not a whole number.
Question 23 :
Since, zero is neither negative nor positive ; it is not an integer.
Question 24 :
If x is a whole number then -x is also a whole number.
Question 25 :
In each case, arrange the given integers in descending order using a number line.<br> -5, -3, 8, 15, 0, -2
Question 27 :
On dividing a number by 9 we get 47 as quotient and 5 as remainder. The number is
Question 32 :
Product of two whole numbers may not be a natural number.
Question 36 :
In each case, arrange the given integers in ascending order using a number line.<br> 3, – 3, 4, – 7, 0, – 6, 2
Question 41 :
Sum of two whole numbers may not be a natural number.
Question 42 :
Whole numbers and natural numbers differ only by one number, i.e., zero (0).