Number Line Jump — Integers

Score: 0 Streak: 0 Best: 0
0 + 0 = ?
Keyboard: / to step, Enter to check, R to reset
Rules refresher: adding a positive moves right; adding a negative moves left; subtracting a positive moves left; subtracting a negative flips to adding, so you move right. You can step along the line to feel it, or then press Check when you're ready.