For sale: Original Casio scientific calculator, model fx-991ES PLUS (2nd Edition), in very good condition 👌 Considered one of the best calculators for students and engineers, offering 417 functions with a natural display that shows solutions just like they are written 📚 ✅ Works efficiently (clear display) ✅ Dual power (solar + battery) ✅ Supports equations, statistics, matrices, and complex numbers ✅ Suitable for high school, university, and scientific majors 💡 A practical, lightweight, and easy-to-use device — an excellent choice for daily study. ⭐ Key Features: Natural Display for clear operation viewing Multiple modes: EQN / STAT / MATRIX / VECTOR, etc. Easy equation solving (SOLVE) Advanced calculations (integration, differentiation, statistics) Known Casio quality and high reliability 💰 Price: 160 SAR, negotiable 🔥 📍 Notes: Lightly used Serious buyers only Inspection available before purchase 📞 Contact: Direct message / WhatsApp Don't miss out — a powerful calculator at an excellent price! Ready to serve you in your studies from day one :100: