Interactive Number Line

The Interactive Number Line makes integer operations visual:

• Move along a number line with smooth animated arrows
• Add or subtract integers (+5, –3, +7, etc.)
• Watch the movement happen step‑by‑step
• Adjust the number line range
• Control playback (Play, Step, Reset, Keyboard shortcuts)
• Remove or reorder moves easily
• Clear, student‑friendly, no‑distraction UI
• The Demo has a limited trial, you can pay for the Full version download