1.Oblicz sposobem pisemnym: 2. Oblicz sposobem pisemnym:

1) 5 4/5+ 3 3/4= 5 16/20+ 3 15/20= 8 31/20= 9 11/206 1/3- 2 2/7= 6 7/21- 2 6/21=  4 1/212 1/2 * 1 3/5= 5/2 * 8/5= 41 4/5 : 1 1/2= 9/5 : 3/2= 9/5 * 2/3= 6/5= 1 1/52) 68,54- 2,672= 65,8683,1- 0,1526= 2,94743,1 * 2,31= 7,1610,24647: 0,07= 24,647:7= 3,521     68,540-     2,672-------------    65,868    3,1000-  0,1526------------   2,9474          2,31  x       3,1        --------          231 +      693       -------        7,161            0,24647: 0,07= 24,647:7= 3,521                       -21                      -----                          3 6                        - 3 5                        ----------                              14                          -   14                             ------                                   7                             -     7                             -------                              =====