SOF IMO · Mathematical Operations · Quiz
5 real SOF IMO questions on Mathematical Operations. Instant scoring and solutions, no signup — see where you stand in ~3 minutes.
Question 1 of 5
MEDIUMIf '×' means '+', '+' means '÷', '÷' means '−', and '−' means '×', find the value of 20 − 5 + 10 × 15.