Skip to content / Đến nội dung
ThichHocToan.com

BBB 2022 - Grade 4 - Preliminary Round Question 9

BBB · BBB 2022 - Grade 4 - Preliminary Round

Question 9

Find the value of $10-17+22-15+20-13+18-11+16+30$.
  1. 60
  2. 50
  3. 40
  4. 70