Can anyone tell me how to …

Calculate the value of flowing (1)log 25.7 Ans- see the log table Go the no.25and see the value of 7 firstly ,the value is 4099 .this log value is lie b/w 10-100 so put the 1 before the value which we find in log table .so the Ans of this question.is 1.4099 (2) log2.3 Ans.- go to he no.23 and see the value of 0 in log table(because after the 3 there in no value so we assume that the 0 is behind the 3).this log value is lieb/w 0-10 .so put the zero before the value which we find in log table . The and is.3617 (3) log71.24 Ans. Go to log table no.71 and see the value of 2 , the value comes 8525 then see the value of 4 in log table the value comes 2 .Then add the both values 8525+2=8527 The log value Ia Lie b/w10-100 so put the one before calculated value .The Ans is 1.8527 Remember few things 0-10=0 10-100=1 100-1000=2