Page 107 - Math Skill - 5
P. 107

Estimation                                                                                             105


          Answer the following questions on the basis of the above data.
              1.  Write the population of Uttar Pradesh in rounding off to the nearest lakhs.

              2.  Write the population of all above states in rounding off to the nearest thousands.
              3.  Write the sum of the populations of Haryana and Assam in rounding off to the nearest
                  hundreds.

          D.  Assertion-Reason Based Questions
          Directions for Questions 1 to 2: In each of the questions given below, there are two statements
          marked as Assertion (A) and Reason (R). Mark your answer as per the codes provided below:

             (a)  Both A and R are true and R is the correct explanation of A.
             (b)  Both A and R are true but R is not the correct explanation of A.
             (c)  A is true but R is false.          (d)    A is false but R is true.
           Q. 1.  Assertion (A) :  38000 is the round off value of 37832 to the nearest thousands.

                  Reason (R)    :  Replace all digits to right of the rounding place by zeros.
           Q. 2.  Assertion (A) :  Hundred round off value of 5650 is 5700.
                  Reason (R)    :  Digit on the right of the rounding place is greater than or equal to 5, add 1
                                  to the digit at the rounding place.



             Word Stock
          Estimate          Round-off         Quotient         Near              Nearest           Amount
          Approximate       Revise            Concept          Guess



                 Activity

        Objective             :  To round off each of the following heights of the girls to the nearest hundreds.

                                                                                160
                                        ––––– –––––        –––––     –––––      150

                                                                                140
                                                                                130
                                                                                120
                                                                                110
                                                                                100
                                                                                90
                                                                                80
                                                                                70
                                                                                60
                                                                                50
                                                                                40
                                                                                30
                                                                                20
                                        Amy        Nia      Elle     Beatrix    10
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