Easy
7
+2
×6
−4
÷5
−2
÷4
+14
HALVE
−1
Medium
41
−5
×2/3
HALVE
SQUARE
DOUBLE
+6
÷7
+2
×1/4
Hard
17
×8
−1
×11/3
+14
HALVE
+1
÷7
SQUARE
×25%
There are two versions that can be printed, a default one, and one that requires less ink (no objectives or rules, and no lines).