Term 2 Numbers Book Back Questions

6th Standard

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Maths

Time : 00:45:00 Hrs
Total Marks : 30
    4 x 1 = 4
  1. The difference between two successive odd numbers is

    (a)

    1

    (b)

    2

    (c)

    3

    (d)

    0

  2. The prime factorisation of 60 is 2 \(\times\) 2 \(\times\) 3 \(\times\) 5. Any other number which has the same prime factorisation as 60 is

    (a)

    30

    (b)

    120

    (c)

    90

    (d)

    impossible

  3. If the number 6354 * 97 is divisible by 9, then the value * is

    (a)

    2

    (b)

    4

    (c)

    6

    (d)

    7

  4. The greatest 4 digit number which is exactly divisible by 8, 9 and 12 is

    (a)

    9999

    (b)

    9996

    (c)

    9696

    (d)

    9936

  5. 3 x 1 = 3
  6. If the LCM of 3 and 9 is 9, then their HCF is _______________

  7. The LCM of 26, 39 and 52 is ____________

  8. The least number that should be added to 57 so that the sum is exactly divisible by 2,3, 4 and 5 is ______________

  9. 3 x 1 = 3
  10. The LCM of two successive numbers is the product of the numbers

    (a) True
    (b) False
  11. The LCM of two co-primes is the sum of the numbers

    (a) True
    (b) False
  12. The HCF of two numbers is always a factor of their LCM

    (a) True
    (b) False
  13. 3 x 2 = 6
  14. Express 42 and 100 as the sum of two consecutive primes.

  15. Write the smallest and the biggest three digit composite number.

  16. Your friend says that every odd number is prime. Give an example to prove him/her wrong.

  17. 3 x 3 = 9
  18. The LCM of two numbers is 432 and their HCF is 36. If one of the numbers is 108, then find the other number.

  19. Find the length of the longest rope that can be used to measure exactly the ropes of length 1m 20cm, 3m 60cm and 4m.

  20. Wilson, Mathan and Guna can complete one round of a circular track in 10, 15 and 20 minutes respectively. If they start together at 7 a.m from the starting point, at what time will they meet together again at the starting point?

  21. 1 x 5 = 5
  22. Find the LCM of 156 and 124.

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