va rog!!
dau coroana

Răspuns:
7. A) 2:2+2×2-2=1+4-2=3
3+3×3+3:3-3=3+9+1-3=10
4×4-4:4+4=16-1+4=19
B) 5-5:5+5×5=5-1+25=4+25=29
6:6+6×6-6=1+36-6=31
7-7:7+7×7=7-1+49=6+49=55
C)8-8:8+8×8=8-1+64=71
9:9+9×9-9=1+81-9=73
10-10:10+10×10=10-1+100=9+100=109
Explicație:
Asta e 7