II. 



213 

 N=9,97609099 



9,870 

 1 1 



8,8 1 9 

 -10 



8,090 

 -1 



8,099 

 -1 



89 



III. If we search separately for 79 (neglecting for the while 127), 

 we can proceed thus : 



1 331 



2 .... +13 



3.... -20 



4.... +26 



5.... - 7 



6.... -40 



7.... + 6 



8 27 



9 -60 j 



Ex. 1. 7,955063=N 



+ 6 



9,5 5 6 6 

 -60 



5,5 6 3 

 -7 



5,0 5 6 

 -7 

 553=779 



