1. Simplify:
[
begin{aligned}[t]
12 – overline{8 – 3 cdot (2 + 1)}
end{aligned}
]
2. Simplify:
[
begin{aligned}[t]
5 cdot overline{18 div (6 + 3)} + 2
end{aligned}
]
3. Simplify:
[
begin{aligned}[t]
9 + overline{20 div 4 cdot (1 + 1)} – 3
end{aligned}
]
4. Simplify:
[
begin{aligned}[t]
11 – overline{15 div 3 cdot (2 + 1) + 2}
end{aligned}
]
5. Simplify:
[
begin{aligned}[t]
6 cdot overline{21 div (7 + 2)} – 3
end{aligned}
]
6. Simplify:
[
begin{aligned}[t]
8 + overline{16 div 4 cdot 2 + 1}
end{aligned}
]
7. Simplify:
[
begin{aligned}[t]
12 – overline{9 cdot 2 + 1} + 4
end{aligned}
]
8. Simplify:
[
begin{aligned}[t]
7 cdot overline{14 div 7 + (3 – 2)} – 2
end{aligned}
]
9. Simplify:
[
begin{aligned}[t]
15 – overline{10 – 3 cdot (2 + 1) + 2}
end{aligned}
]
10. Simplify:
[
begin{aligned}[t]
4 + overline{18 div 3 cdot (2 + 2)} – 1
end{aligned}
]