## Class 6 Math Important Objective Chapter – 1 Knowing Our Numbers

Here we are providing Class 6 Math Important Objective Chapter – 1 Knowing Our Numbers because its very important for Class 6 students as we all know that every board exam question has MCQs so that students should practice these questions so that students can get good marks in board. Class 6 Math Important Objective Chapter – 1 Knowing Our Numbers is an extremely important and its also a year in which students learn the fundamentals of concepts that help them lay a solid foundation for their higher education. Here we are providing in Class 6 Math Important Objective Chapter – 1 Knowing Our Numbers 80+ questions  so that students practice more and more. If you want class wise Notes Then Click Here

## Class 6 Math Important Objective Chapter – 1 Knowing Our Numbers

1. Make the smallest 4-digit number by using any one digit of 4,3,2 twice.

(a) 2234

(b) 2243

(c) 2432

(d) 2324.

Ans-(a)

2. The greatest of the numbers

123, 27, 650, 2342, 40000 is

(a) 40000

(b) 2342

(c) 27

(d) 650.

Ans-(a)

3. Make the smallest 4-digit number by using any one digit of 7, 0, 6 twice.

(a) 6007

(b) 6070

(c) 6700

(d) None of these.

Ans-(a)

4. The greatest 5-digit number is

(a) 99999

(b) 100000

(c) 98765

(d) 56789

Ans-(a)

5. Take two digits, say 1 and 2. Make the greatest 4-digit number using both the digits equal number of times.

(a) 1122

(b) 2112

(c) 2121

(d) 2211.

Ans-(d)

6. In Roman numerals L stands for

(a) 100

(b) 50

(c) 70

(d) 90.

Ans-(b)

7. The smallest of the numbers

1000,50000,111,3222,225 is

(a) 111

(b) 225

(c) 1000

(d) 3222.

Ans-(a)

8. In Raman numerals D stands for

(a) 100

(b) 1000

(c) 500

(d) 10.

Ans-(c)

9. The smallest 8 digit number is called

(a) Ten lakh

(b) One lakh

(c) Ten crore

(d) One crore

Ans-(d)

10. Take two digits, say 3 and 4. Make the smallest 4-digit number using both the digits equal number of times.

(a) 3344

(b) 4433

(c) 4343

(d) 4334.

Ans-(a)

11. Medicine is packed in boxes, each weighing 5 kg 200 g. How many such boxes can be loaded in a van which cannot carry beyond 260 kg?

(a) 90

(b) 65

(c) 60

(d) 50

Ans-(d)

12. Which of the following is not a symbol to write Roman numerals?

(a) D

(b) V

(c) M

(d) N

Ans-(d)

13. The smallest of the numbers

2325,2352,2235,2253,2523,2532 is

(a) 2235

(b) 2253

(c) 2325

(d) 2532.

Ans-(a)

14. Take two digits 0 and 1. Make the greatest 4-digit number using both the digits equal number of times.

(a) 1100

(b) 1001

(c) 1010

(d) None of these.

Ans-(a)

15. The sum of 825432 and 543082 according to Indo Arabic Numeration System.

(a) 13,78,514

(b) 13,68,514

(c) 13,68,524

(d) 14,68,514

Ans-(b)

16. If we add 1 more to the greatest 5-digit number we get

(a) Smallest 5-digit number

(b) Smallest 4-digit number

(c) Smallest 3-digit number

(d) Smallest 6-digit number

Ans-(d)

17. The greatest 4-digit number is

(a) 8888

(b) 6789

(c) 9876

(d) 9999.

Ans-(d)

18. The smallest 4-digit number having three different digits is

(a) 1000

(b) 1203

(c) 1320

(d) 1002

Ans-(d)

19. The difference between 405235 and 995432 according to International system of numeration.

(a) 590,197

(b) 5,90,197

(c) 59,01,97

(d) 590197

Ans-(a)

20. Which of the following options is equal to MMMCCLXXV − MCCCXXIV?

(a) MLMCI

(b) MMCLI

(c) MCMLI

(d) MCMIL

Ans-(c)

21. Using the digits 1, 2, 3, 4 without repetition, the greatest 4-digit number that can be made is

(a) 4321

(b) 4312

(c) 4213

(d) 4231.

Ans-(a)

22. The smallest 4-digit number is

(a) 1001

(b) 1000

(c) 1111

(d) 9999.

Ans-(b)

23. Which pair has same digits at hundreds place?

(a) 4232, 4341

(b) 5432, 6922

(c) 6524, 7823

(d) 2334, 2340

Ans-(d)

24. 81 [15 {7 – 2 (7 – 3)}] is equal to

(a) 1215

(b) -1315

(c) -1225

(d) -1215

Ans-(d)

25. Which of the following numbers comes next to 999?

(a) 100

(b) 998

(c) 1000

(d) None of these.

Ans-(c)

26. Using the digits 1, 5, 7, 2 without repetition, the greatest 4-digit number that can be made is

(a) 7521

(b) 7512

(c) 7215

(d) 7251.

Ans-(a)

27. Which of the following numbers comes just before 1000?

(a) 999

(b) 1001

(c) 990

(d) 909.

Ans-(a)

28. Which of the following options is true?

(a) XCVIII > MCVIII

(b) DCVIII < MCVIII

(c) DCVIII = MCVIII

(d) XCVIII < LXXXVII

Ans-(b)

29. A flask has 5 litres of lemonade. How many glasses, each of 200mL capacity, can it fill?

(a) 25

(b) 35

(c) 45

(d) 15

Ans-(a)

30. The difference between face value and place value of 5 in 210517 is

(a) 4995

(b) 5005

(c) 495

(d) 395

Ans-(c)

31. Which of the following numbers is equal to 1 lakh?

(a) 100000

(b) 10000

(c) 1000

(d) 100.

Ans-(a)

32. Using the digits 3, 5, 7, 0 without repetition the greatest 4-digit number that can be made is

(a) 7530

(b) 7503

(c) 7350

(d) 7305.

Ans-(a)

33. Make the greatest four digit number by using any one digit twice by 3, 8, 7?

(a) 8378

(b) 8873

(c) 3387

(d) 7783

Ans-(b)

34. Smallest 8-digit number is

(a) 10000001

(b) 99999999

(c) 10000000

(d) 999999998

Ans-(c)

35. Write the greatest 4-digit number using different digits with 6 in the tens place.

(a) 9876

(b) 9867

(c) 9687

(d) 6987

Ans-(b)

36. The smallest 4-digit number using the digits 2, 1, 3, 7 without repetition is

(a) 1237

(b) 2137

(c) 2371

(d) 3217

Ans-(a)

37. Which of the following numbers is equal to 1 crore ?

(a) 10000000

(b) 1000000

(c) 100000

(d) 10000.

Ans-(a)

38. Face value of 5 in 2150 is

(a) 5

(b) 50

(c) 500

(d) 5000

Ans-(b)

39. The smallest 4-digit number that can be made using the digits 1,8,5,3 without repetition is

(a) 1583

(b) 1538

(c) 1385

(d) 1358.

Ans-(d)

40 . The greatest 4-digit number using the digits 4, 7, 3, 2 without repetition is

(a) 2374

(b) 3247

(c) 4723

(d) 7432

Ans-(d)

41. Correct ascending order of 847, 9754, 8320, 571 is

(a) 9754, 847, 8320, 571

(b) 571, 847, 8320, 9754

(c) 571, 8320, 847, 9754

(d) 9754, 8320, 847, 571

Ans-(b)

42. 527864 using commas in Indian as well as International System of Numeration is

(a) 527864

(b) 5,27,864

(c) 527,864

(d) 52,78,64

Ans-(c)

43. 1 million = how many lakh?

(a) 10

(b) 100

(c) 1000

(d) 10000.

Ans-(a)

44. The product of the place values of two 2’s in 428721 is ?

(a) 4

(b) 40000

(c) 400000

(d) 40000000

Ans-(c)

45. The smallest 4-digit number that can be made using the digits 5,3,6,4 without repetition is

(a) 3546

(b) 3564

(c) 3456

(d) 3465.

Ans-(c)

46. 1 crore = how many million?

(a) 10000

(b) 1000

(c) 100

(d) 10.

Ans-(d)

47. 3×10000 + 7×1000 + 9 × 100 + 0 × 10 + 4 is the same as

(a) 3794

(b) 37940

(c) 37904

(d) 379409

Ans-(c)

48. 8945673 using commas in International System of Numeration.

(a) 8,945,673

(b) ,945,673

(c) 8,945673

(d) 8945673

Ans-(a)

49. 1 billion.= how many million?

(a) 10

(b) 100

(c) 1000

(d) 10000.

Ans-(c)

50. If 1 is added to the greatest 7-digit number, it will be equal to

(a) 10 thousand

(b) 1 lakh

(c) 10 lakh

(d) 1 crore

Ans-(c)

51. Sunny is a famous cricket player. He has so far scored 7,280 runs in test matches. He wishes to complete 10,000 runs. How many more runs does he need?

(a) 2520

(b) 2500

(c) 2720

(d) 2000

Ans-(c)

52. The expanded form of the number 9578 is

(a) 9 × 10000  + 5 × 1000  + 7 × 10 + 8 × 1

(b) 9 × 1000  + 5 × 100 + 7 × 10 + 8 × 1

(c) 9 × 1000  + 57 × 10 + 8 × 1

(d) 9 × 100 + 5 × 100 + 7 × 10 + 8 × 1

Ans-(b)

53. 1 lakh = how many ten thousand?

(a) 1

(b) 10

(c) 100

(d) 1000.

Ans-(b)

54. The smallest 4-digit number that can be made using the digits 6, 5, 0, 4 without repetition is

(a) 4560

(b) 4056

(c) 4065

(d) 4506.

Ans-(b)

55. 1 million = how many hundred thousand?

(a) 10

(b) 100

(c) 1

(d) None of these.

Ans-(a)

56. In Following option which pair is not coprime?

(a) 8,10

(b) 11,12

(c) 1,3

(d) 31,33

Ans-(a)

57. The greatest five-digit number using the digits 3, 1 and 0

(a) 30001

(b) 10003

(c) 31000

(d) 13000

Ans-(c)

58. What will be the sum of the prime factor of 1729 is?

(a) 39

(b) 32

(c) 34

(d) 38

Ans-(a)

59. 1 crore = how many ten lakhs?

(a) 100

(b) 1

(c) 10

(d) None of these.

Ans-(c)

60. Out of Four option which is divisible by 11?

(a) 22222222

(b) 3333333

(c) 1111111

(d) 1011011

Ans-(a)

61. Make the greatest 4-digit number by using any one digit of 2. 6. 5 twice.

(a) 6652

(b) 6625

(c) 6256

(d) 6265.

Ans-(a)

62. Insert comma suitably in 67810138 by using International System.

(a) 67,810,138

(b) 67,81,01,38

(c) 6,78,10,138

(d) 678,10,138.

Ans-(a)

63. The place value of 2 in 91023045 is

(a) 2000

(b) 20000

(c) 200

(d) 200000

Ans-(b)

64. From four of these which statement is not true?

(a) The HCF of an even and an odd number is even

(b) The HCF of two co prime number is 1

(c) The HCF of two consecutive even number is 2

(d) The HCF of two distinct prime number is 1

Ans-(a)

65. 1 centimetre =? millimetres

(a) 10

(b) 100

(c) 1000

(d) none of these.

Ans-(a)

66. Make the smallest four digit number by using any one digit twice by 3, 8, 7?

(a) 3378

(b) 3387

(c) 8873

(d) 8378

Ans-(a)

67. Make the greatest 4-digit number by using any one digit of 0, 3, 6 twice.

(a) 6630

(b) 6603

(c) 6360

(d) 6306.

Ans-(a)

68. Which of the following rounding off is correct?

(a) 841 800

(b) 286 200

(c) 9870 9800

(d) 87 80.

Ans-(a)