VTMO 2026 - Grade 6 - Semifinal - SET 3 - Self-study Question 4

VTMO · VTMO 2026 - Grade 6 - Semifinal - SET 3 - Self-study

Question 4

Calculate $1+2-3+4+5-6+7+8-9+10+11-12+13+14-15$.

1. 18
2. 30
3. 36
4. 48
5. 50