34° + 56° = 90°
75° - 28° = 47°
19°·8 = 152°
154° : 7 = 22°
27°18' + 56°24' = 83°42'
5°38' + 8°53' = 13°91' = 14°31'
75° - 28°53' = 74°60' - 28°53' = 46°7'
27°45'·5 = 135°225' = 138°45'
75° : 4 = 72°180' : 4 = 18°45'
122°50' : 5 = 120°170' : 5 = 24° 34'
Explicație pas cu pas:
1 grad = 60 minute !!
a) 34° + 56° = 90°
b ) 75° - 28° = 47°
c) 19° * 8 = 152°
d) 154° : 7 = 22°
e) 27°18' + 56°24' =
83°42'
f) 5°38' + 8°53' =
13°91' = 14°31'
g) 75° - 28°53' =
74°60' - 28°53' = 46°7'
h) 27°45' × 5 =
135°225' = 138°45'
i ) 75° : 4 =
75 : 4 = 18° rest 3° = 3° × 60' = 180'
180' : 4 = 45'
18°45'
j) 122°50' : 5 =
122 : 5 = 24° rest 2° = 2° × 60' = 120'
120' + 50' = 170'
170' : 5 = 34'
24°34'