Răspuns:
Explicație pas cu pas:
a) 86°48'+36°29' = 122°77' = 123°17'
b) 34°21' - 19°45' = 33°81'-19°45' = 14°36'
c) 95°37'x9 = 855°333'= 860°33'
d) 31°27' : 3 = 10° 29'
30:3 = 10 ; 31-30=1°= 60'; 60'+27' = 87'
87':3 = 29'
e) 145°36' : 6 = 24°16'
24x6 = 144 ; 145-144 =1° =60'
60'+36' = 96'; 96':6 = 16'
