Easy
3
+7
HALVE
+2
×9
−6
÷3
−10
SQUARE
−11
Medium
29
DOUBLE
+2
×1/5
HALVE
−1
SQUARE
+3
×1/7
×3
Hard
65
+7
×3/8
−3
÷12
CUBE
SQUARE
HALVE
×25%
+37
There are two versions that can be printed, a default one, and one that requires less ink (no objectives or rules, and no lines).
default less ink printing help