Basic Editing & Insertion

Replace Single Character: r

FREE +20 XP
Task of :
What you need to do:

Position cursor on the typo "1" in "5100" and type `r0` to replace it with "0".

Expected key sequence:

r0

⚠️
Attempts: 1 Time: 0s
✓ Excellent! + XP

Concept Explanation & Reference

Instead of deleting and entering Insert mode, use r to replace a single character in-place:

  • r{char}: Replace character under cursor with {char}

You remain in Normal mode immediately after the replacement.