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Estimation Test - 1

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Estimation Test - 1
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Round off the number 979654 to the nearest thousand.

    Solution

    The number 979654 will be rounded off to 980000.

  • Question 2
    1 / -0

    Estimate the sum of 654 and 456 to the nearest ten.

    Solution

    Rounding off 654 to the nearest ten is 650 and rounding off 456 to the nearest ten is 460 . Sum of 650 and 460.

    650 + 460 = 1110.

  • Question 3
    1 / -0

    Write the smallest and the largest numbers which can be rounded off to 60.

    Solution

    The largest number which can be rounded off to 60 is 64.

    The smallest number which can be rounded off to 60 is 55.

  • Question 4
    1 / -0

    Round off the numbers 5972 and 3648 to the nearest hundred and find the difference between them.

    Solution

    Rounding off 5972 to the nearest hundred will be 6000 and 3648 to the nearest hundred will be 3600 . Now 6000 – 3600 = 2400.

  • Question 5
    1 / -0

    How can the number 54168 be rounded off to the nearest ten thousands ?

    Solution

    On rounding off 54168 to the nearest ten thoudands , the number will be 50000.

  • Question 6
    1 / -0

    Round off 454 and 236 to the nearest hundred and then find their product.

    Solution

    Rounding off 454 to the nearest hundred will be 500 and rounding off 236 to the nearest hundred will be 200. Now calculate product of 500 and 200. 

    500 X 200 = 100000

  • Question 7
    1 / -0

    Estimate the sum of 904473 and 941516 to the nearest thousand.

    Solution

    Rounding off 904473 to the nearest thousand will be 904000 and rounding off 941516 to the nearest thousand will be 942000. Now 904000 + 942000 = 1846000.

  • Question 8
    1 / -0

    Estimate the products of 28 x 37 by rounding of each number to the nearest ten.

    Solution

    Rounding off 28 to the nearest ten will be 30 and 37 to the nearest ten will be 40. Now 30 x 40 = 1200

  • Question 9
    1 / -0

    Estimate the product by rounding off 662 to the nearest hundred and 146 to the nearest ten.

    Solution

    On rounding off 662 to the nearest hundred , the number will be 700 . On rounding 146 to the nearest ten , the number will be 150. Now calculate the product of 700 and 150.  

    700 x 150 = 105000

  • Question 10
    1 / -0

    Round off the numbers 2326 and 1897 to the nearest ten and find the difference between them.

    Solution

    2326 will be round off to 2330 and 1897 will be round off to 1900. Now 2330 – 1900 = 430.

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