Răspuns:
[(2×2+2:2)×2-2]×2×(2×2-2:2)=48
[(4+1)×2-2]×2×(4-1)=48
(5×2-2)×2×3=48
(10-2)×2×3=48
8×2×3=48
16×3=48 A
[(4+4)×4-4+4×(4+4:4)]:4=12
[8×4-4+4×(4+1)]:4=12
(8×4-4+4×5):4=12
(32-4+20)4=12
(28+20):4=12
48:4=12 A
[(5×5-5)×5+5]:5×(5+5:5)=126
[(25-5)×5+5]:5×(5+1)=126
(20×5+5):5×6=126
(100+5):5×6=126
105:5×6=126
21×6=126 A
3×3+(3+3)×[3+(3:3+3)×3]=99
3×3+9×[3+(1+3)×3]=99
3×3+9×(3+4×3)=99
3×3+9×(3+12)=99
3×3+9×15=99
9+135=144 F
(6×6-6):[(6-6:6)+6×(6:6)-6]=6
(36-6):[(6-1)+6×1-6]=6
30:(5+6×1-6)=6
30:(5+6-6)
30:(11-6)=6
30:5=6 A
