Question

calculeaza: a) 70°43' + 2°52': 105°38' + 1º41': 45°51' + 12°25': b) 120°13' -75°49';13°45'-5°51';91°28'-73°37';c)14°32'•5;45'•6;62°36'•8;d)100°48'+123°12';145°2'-67°43';87°34'•10​

Answer 1

Explicație pas cu pas:

a) 70°43'+2°52'= 72°95'=73°35'

b) 105°38'+1°41'= 106°79'= 107° 19'

c)45°51'+12°25= 57° 76'=58°16'