10-1=, 13-3=, 19-7=, 18-5=, 17-5=, 16-4=, 12-2=, 14-4=, 12-9=, 13-7=, 16-6=, 18-8=, 19-9=.

Subtraction

Leaderboard

Visual style

Options

Switch template

Continue editing: ?