Easy
9
−3
×6
+19
÷5
+1
÷2
−1
SQUARE
+4
Medium
34
−4
HALVE
−8
SQUARE
DOUBLE
−3
÷5
−1
×1/2
Hard
114
÷3
+1
×11/3
×2
+4
×7/12
−3
÷12
SQUARE
There are two versions that can be printed, a default one, and one that requires less ink (no objectives or rules, and no lines).