Rounding Off Numbers


Knowing Our Numbers II - Concepts
Class - 6th Foundation NTSE Subjects
 
 
Concept Explanation
 

Rounding Off Numbers

Rounding off Numbers:

Rounding means making a number simpler but keeping its value close to what it was. The result is less accurate, but easier to use.

Example: 73 rounded to the nearest ten is 70, because 73 is closer to 70 than to 80.

Example: Round 86 to the nearest 10

  • We want to keep the "8"
  • The next digit is "6" which is 5 or more, so increase the "8" by 1 to "9"
  • Answer: 90

    (86 gets "rounded up")

    Sample Questions
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    Question : 1

    Round 45 to the nearest 10.

    Right Option : D
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    Explanation
    Question : 2

    Estimate the quotient 86 div 9 to nearest tens :

    Right Option : A
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    Explanation
    Question : 3

    The estimated value of 36+71-55 is = ______________

    Right Option : B
    View Explanation
    Explanation
     
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