Mathematics · Beginner
5
questions · ~4 min · 3 hints each (−5 pts)
Confidence tracking, 3-tier hints and instant feedback.
What you'll learn
Each question helps you build key knowledge and skills.
- 1A column vector (x,y) describes a movement: x is horizontal, y is vertical.
- 2To add vectors, add their x-components and y-components separately.
- 3To subtract vectors, subtract corresponding components.
- 4A scalar multiple k(x,y) = (kx,ky), scaling both components.
Question mix
A mix of question types to build your skills.
- Fill the gap×5
Different question types help you think in different ways.
How it works
A simple 3-step process
- 1
Rate your confidence
Tell us how sure you feel before answering. It helps us understand your starting point.
- 2
Use hints if stuck
Get up to 3 helpful hints per question. Each hint costs 5 Treasure Points.
- 3
See what went wrong
Get instant feedback with clear explanations, so you can learn and improve.
Ready when you are
This takes about 4 minutes.

