Question

COROANA! Efectuati:
1) 2+{2+[2+(2+2:2)×2]:2};
2) 24024:12-(50×20+2);
3) 26-12:2+15×4-13+18:9-44;
4) 9+7×3-42:6-54:9-68:4;
5) (15-10:2):5+(15+7×3):(14+4);
6) (5×3-6×2)×(2×4+3)-(9-7)×(8:2-2+9);
7) (5+14×2-54:9):3+3×(27:9+2)-42:2;

Urgent!!Repede dau COROANAAA

Answer 1

1) 2+{2+[2+(2+2:2) ×2]:2}=
2+{2+[2+(2+1)×2]:2}=
2+[2+(2+3×2):2]=
2+[2+(2+6):2]=
2+(2+8:2)=
2+(2+4)=
2+6=8
2)24024:12-(50×20+2)=
2002-(1000+2)=
2002-1002=1000
3) 26-12:2+15×4-13+18:9-44=
26-6+60-13+2-44=
20+60-13+2-44=
80-13+2-44=
67+2-44=
69-44=25
4) 9+7×3-42:6-54:9-68:4=
9+21-7-6-17=
30-7-6-17=
23-6-17=
17-17=0
5)(15-10:2):5+(15+7×3):(14+4)=
(15-5):5+(15+21):18=
10:5+36:18=
2+2=0
6)(5×3-6×2)×(2×4+3)-(9-7)×(8:2-2+9)=
(15-12)×(8+3)-2×(4-2+9)=
3×11-2×(2+9)=
3×11-2×11=
33-22=11
7)(5+14×2-54:9):3+3×(27:9+2)-42:2=
(5+28-6):3+3×(3+2)-21=
(33-6):3+3×6-21=
27:3+3×6-21=
9+18-21=
27-21=6