Easy
7
−1
HALVE
+13
÷8
+9
×2
−4
÷9
+10
Medium
36
×3
+4
×3/4
DOUBLE
+3
×4/9
HALVE
−3
÷5
Hard
97
−1
HALVE
×5/8
÷5
CUBE
÷8
−6
×2/7
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).