Skip to content / Đến nội dung
ThichHocToan.com

VTMO 2016 — Grade 7 — semifinal Question 1

VTMO · VTMO 2016 — Grade 7 — semifinal

Question 1

Subtract the sum of the first $50$ positive even integers from the sum of the first $51$ positive odd integers.
  1. $50$
  2. $51$
  3. $100$
  4. $102$
  5. $- 51$