## COMPUTATION OF WHOLE NUMBERS MCQs

### Whole Numbers

Total Questions : 46 | Page 5 of 5 pages
Question 41. 117 + 9 = 117 + 10 - 1 = 127 - 1 Is the above expression is correct?
1.    True
2.    False

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

Question 42. The set of counting numbers starting with 1 and continuing 2,3,4.....and so on are called _____.
1.    Natural Numbers
2.    Whole Numbers
3.    Integers
4.    Composite Numbers
Answer: Option A. -> Natural Numbers

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

Question 43. How many whole numbers are there between 9876 and 9900?
1.    24
2.    25
3.    23
4.    26

The number of whole numbers between any two numbers
= (thedifference 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 44. 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?
1.    5
2.    4
3.    3
4.    7

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

Question 45. The sum (267 + 345) + 21 is same as the sum 267 + (345 + 21).
1.    True
2.    False
Associative Property states: When three or more numbers are added, the sum is the same regardless of the order ofaddition. Thepropertystates 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 46. Which of the following numbers when represented in the form of dots will give the figure of a line, rectangle and a square?
1.    2
2.    3
3.    4
4.    5