Răspuns:
rad2304 = 48
rad225 - rad1225 + rad1600 = 15 - 35 + 40 = 20
a) 48×(15-35+40)=
48×20=
960
rad(5×5) = 5
rad(7×7) = 7
rad(9×4) = 6
b) 5+7-6=
6
rad(1+7×5) = 6
rad(11×6-2) = 8
rad(23×3+3×4) = 9
c) 6-8+9=
7
rad(12+13) = 5
rad(3×18+7×15-8-7) = 12
d) 5+12=
17
