Easy
6
−1
SQUARE
−19
×9
−8
HALVE
−2
÷7
+19
Medium
32
−2
×3/5
DOUBLE
−1
÷5
SQUARE
−6
×3
−9
Hard
91
−17
×2
+6
×9/14
−3
÷12
SQUARE
×25%
HALVE
There are two versions that can be printed, a default one, and one that requires less ink (no objectives or rules, and no lines).