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Knowing our Numbers Test - 8

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Knowing our Numbers Test - 8
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Weekly Quiz Competition
  • Question 1
    1 / -0

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

    Solution

    the greatest 4-digit number using different digits with 6 in the tens place is 9867

     

  • Question 2
    1 / -0

    The difference of the greatest 6-digit number and the smallest 4-digit number is _________.

    Solution

    Greatest 6-digit number = 999999 Smallest 4-digit number = 1000
    ∴ Required difference = 999999 - 1000 = 998999

     

  • Question 3
    1 / -0

    If a new number is formed by interchanging the tens and thousands place digits of 8727, then what is the relation between them?

    Solution

    Original number = 8727 After interchanging tens and thousands place digits, we get 2787. So, new number is smaller than original number.

     

  • Question 4
    1 / -0

    Medicine is packed in boxes, each weighing 4 kg 500 g. How many such boxes can be loaded in a van which cannot carry beyond 800 kg?

    Solution

    Weight of each box = 4 kg 500 g = 4.5 kg Capacity of van = 800 kg 

    ∴

     Number of boxes, the van can carry 

    = 800/4.5 = 177.77 ≈ 177

    (approx.)

     

  • Question 5
    1 / -0

    The difference between the smallest 3-digit number and greatest 2-digit number is

    Solution

    Smallest 3-digit number = 100 Greatest 2-digit number = 99 ∴ Difference = 100 - 99 = 1 i.e., I

     

  • Question 6
    1 / -0

    The largest 4-digit and smallest 4-digit numbers formed by using the digits 4, 0, 3, 7 each only once respectively are ________.

    Solution

    Largest 4-digit number formed by using the digits 4, 0, 3, 7 = 7430 Smallest 4-digit number formed by using the digits 4, 0, 3, 7 = 3047

     

  • Question 7
    1 / -0

    Estimate the difference of 15875 - 7892 by rounding off each number to nearest hundred.

    Solution

    15875 estimated to the nearest hundred = 15900 7892 estimated to the nearest hundred = 7900
    ∴ Required difference = 15900 - 7900 = 8000

     

  • Question 8
    1 / -0

    How many numbers are there containing 2 digits?

    Solution

    Number of two digit numbers = (The greatest two digit number - The smallest two digit number) + 1 =(99-10)+1 =90

     

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