idnr: 2167
1-
10+
12*
7+
9+
60*
30*
5+
1-
5*
3
Difficulty: Medium ()
idnr: 1240
2/
2/
60*
60*
2
480*
10*
5/
3/
3
Difficulty: Easy ()
idnr: 2670
1-
2/
18+
8+
30*
1
10*
2/
4-
12*
Difficulty: Medium ()
idnr: 1682
13+
10+
7+
9+
9+
5+
11+
11+
Difficulty: Impossible ()