10 + 10 = - 20, 5 + 4 =  - 9, 7 + 3 = - 10, 10 - 5 = - 5, 11 + 0 = - 11, 6 + 6 =  - 12, 15 - 0 = - 15, 10 + 3 =  - 13, 6 + 2 =  - 8, 10 - 3 =  - 7,

Adding and Subtracting Facts Match Up

Leaderboard

Visual style

Options

Switch template

Continue editing: ?