50 Unique M C Q on whole numbers

 

Sure! Here's a set of 50 Multiple Choice Questions (MCQs) on the topic of "Whole Numbers – Basics" suitable for Class 6 level. Each question includes 4 options, and the correct answer is marked with ✅ for easy reference.

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📘 Whole Numbers – 50 MCQs

🔢 Basic Concepts

1. Which is the smallest whole number?
   a) 1
   b) 0 ✅
   c) -1
   d) 10

2. Whole numbers start from:
   a) -10
   b) 1
   c) 0 ✅
   d) 2

3. Which of the following is a whole number?
   a) -2
   b) 8 ✅
   c) 0.5
   d) -1.2

4. Whole numbers do not include:
   a) 0
   b) 1
   c) Negative numbers ✅
   d) 10

5. The successor of 99 is:
   a) 100 ✅
   b) 98
   c) 101
   d) 90

6. The predecessor of 57 is:
   a) 56 ✅
   b) 58
   c) 55
   d) 60

7. Which of these is NOT a whole number?
   a) 0
   b) 12
   c) -5 ✅
   d) 100

8. The successor of a whole number ‘n’ is:
   a) n
   b) n + 1 ✅
   c) n – 1
   d) n × 2

9. Which of the following is the predecessor of 1?
   a) 2
   b) 0 ✅
   c) 1
   d) -1

10. What is the predecessor of 0?
    a) Does not exist in whole numbers ✅
    b) 1
    c) -1
    d) 10

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🧮 Operations on Whole Numbers

11. 5 + 0 = ?
    a) 0
    b) 5 ✅
    c) 1
    d) 10

12. 0 × 76 = ?
    a) 0 ✅
    b) 76
    c) 1
    d) 760

13. 8 × 1 = ?
    a) 8 ✅
    b) 0
    c) 1
    d) 9

14. The identity for addition in whole numbers is:
    a) 1
    b) 0 ✅
    c) 10
    d) 100

15. The identity for multiplication in whole numbers is:
    a) 1 ✅
    b) 0
    c) 10
    d) 100

16. (9 × 5) + (9 × 2) = ?
    a) 63
    b) 9 × (5 + 2) ✅
    c) 90
    d) 25

17. Is subtraction closed for whole numbers?
    a) Yes
    b) No ✅
    c) Sometimes
    d) Only with 0

18. Is addition closed for whole numbers?
    a) Yes ✅
    b) No
    c) Only with 0
    d) Only with 1

19. Which operation is not always possible with whole numbers?
    a) Addition
    b) Multiplication
    c) Subtraction ✅
    d) All are always possible

20. Which of the following shows the distributive property?
    a) a × (b + c) = a × b + a × c ✅
    b) a + b = b + a
    c) a × b = b × a
    d) (a + b) + c = a + (b + c)

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🧠 Properties of Whole Numbers

21. Whole numbers are closed under:
    a) Subtraction
    b) Multiplication ✅
    c) Division
    d) None

22. Which of the following is associative?
    a) (a + b) + c = a + (b + c) ✅
    b) a – b = b – a
    c) a ÷ b = b ÷ a
    d) a – (b – c) = (a – b) – c

23. Which of the following shows commutativity?
    a) a + b = b + a ✅
    b) a – b = b – a
    c) a ÷ b = b ÷ a
    d) a × 0 = 0

24. Is multiplication commutative for whole numbers?
    a) Yes ✅
    b) No
    c) Only for even numbers
    d) Only for 0

25. Is division closed under whole numbers?
    a) Yes
    b) No ✅
    c) Sometimes
    d) Always

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🔁 Patterns and Tricks

26. If a number is multiplied by 0, the result is always:
    a) 0 ✅
    b) That number
    c) 1
    d) 10

27. Which number is the additive identity in whole numbers?
    a) 0 ✅
    b) 1
    c) 10
    d) 100

28. Which of the following is an even whole number?
    a) 11
    b) 17
    c) 8 ✅
    d) 9

29. The product of two whole numbers is always a:
    a) Whole number ✅
    b) Decimal
    c) Fraction
    d) Negative number

30. Which whole number lies between 45 and 47?
    a) 46 ✅
    b) 44
    c) 48
    d) 49

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📏 Application Questions

31. A shop has 0 candies. If 5 people come, each taking 0, how many are left?
    a) 0 ✅
    b) 5
    c) 10
    d) None

32. How many whole numbers lie between 12 and 18?
    a) 6
    b) 5 ✅
    c) 4
    d) 7

33. If a = 6, b = 4, what is (a + b) – b?
    a) 6
    b) 10
    c) 6 ✅
    d) 4

34. If x = 5, y = 3, then x × y = ?
    a) 15 ✅
    b) 8
    c) 2
    d) 0

35. Is 0 a natural number?
    a) Yes
    b) No ✅
    c) Only sometimes
    d) None of the above

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🔠 True/False Style Concept Questions

36. Every natural number is a whole number.
    a) True ✅
    b) False
    c) Depends on number
    d) None

37. Every whole number is a natural number.
    a) True
    b) False ✅
    c) Depends
    d) None

38. 0 is the only whole number which is not a natural number.
    a) True ✅
    b) False
    c) All numbers
    d) None

39. There is a largest whole number.
    a) True
    b) False ✅
    c) Maybe
    d) Only 1000

40. Whole numbers continue forever.
    a) True ✅
    b) False
    c) Ends at 100
    d) Ends at 1000

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📝 Miscellaneous

41. The number that does not change any number when added is:
    a) 0 ✅
    b) 1
    c) 10
    d) -1

42. How many whole numbers are there between 1 and 10?
    a) 10
    b) 8
    c) 9 ✅
    d) 5

43. Which number is not divisible by any other number except 1 and itself?
    a) 6
    b) 10
    c) 7 ✅
    d) 4

44. If a × 1 = a, then a is:
    a) Zero
    b) Negative
    c) Any whole number ✅
    d) Decimal

45. What is 5 × 4 × 0 × 3?
    a) 0 ✅
    b) 60
    c) 5
    d) 20

46. Choose the correct multiplication property: a × 1 = a
    a) Distributive
    b) Multiplicative identity ✅
    c) Associative
    d) Commutative

47. What is 7 + 0 + 3?
    a) 10 ✅
    b) 7
    c) 0
    d) 3

48. Which number gives the same result when added to 0?
    a) Any whole number ✅
    b) Only 1
    c) Only 10
    d) Only even numbers

49. The value of (2 + 3) + 4 is same as:
    a) (2 + 4) + 3
    b) 2 + (3 + 4) ✅
    c) 2 × (3 + 4)
    d) None

50. Division by 0 is:
    a) Zero
    b) One
    c) Not defined ✅
    d) Infinity

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