Răspuns:
a) 1+1+8-0+0=10
b)2 la puterea3 +(2 la puterea21-2 la puterea21)×3×3la puterea2004=
2 la puterea3 +0×3×3 la puterea2004=
2 la puterea 3+0 =8
c)10×(21 la puterea2÷21 la puterea2+2(2-1))=
10(1+2×1)=
10(1+2)=
10×3=30
