Page 111 - Maths Class 05
P. 111

Digit at tenths
                                                                                          place is greater than 5.
                          b.  Given decimal = 3 1 . 6 2

                                                                                                Digit at ones place

                            So, increase the ones place digit by 1 and replace

                              each digit after the decimal point with 0.

                            \ Rounded off number of 31.62 = 32.00.


                                                                                                    Digit at tenths
                                                                                                       place is 5.
                          c.  Given decimal = 25 2 . 5 6

                                                                                                Digit at ones place


                            So, increase the ones place digit by 1 and replace
                              each digit after decimal point with 0.

                            \ Rounded off number of 252.56 = 253.00




            Rounding off a Decimal to the Nearest Tenths (Correct to One Decimal Place)

            «  First, examine the hundredths place digit.

            «  If  the  hundredths  place  digit  is  less  than  5,  then  replace  each  digit  after  tenths

                 place with 0.

            «  If the hundredths place digit is 5 or greater than 5, then increase the tenths place

                 digit by 1 and replace each digit after it with 0.



            Example  :  Round off the following decimals to the nearest tenths :

                          a.  29.62                    b.  65.17                    c.  48.354



                                                                                           Digit at hundredths
                                                                                           place is less than 5.
            Solution  :  a.  Given decimal = 29.6 2


                            So, replace each digit after tenths place with 0.

                            \ Rounded off number of 29.62 = 29.60







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