Explicație pas cu pas:
5 .
a)70°43'+2°52=72°95'=73°35'
105°38'+1°41'=106°79'=107°19'
45°51'+12°25'=57°76'=58°16'
b)120°13'-75°49'=119°73'-75°49'=44°24'
13°45'-5°51'=12°105'-5°51'=7°54'
91°28'-73°37'=90°88'-73°37'=17°51'
c)14°32'•5=70°160'=72°40'
45'•6=270'=4°30'
62°36'•8=496°288'=500°48'
6.
c)108°45':3=36°15'
175°20':5=35°4'
147°49':7=21°7'
sper că te-am ajutat
