What is the difference between the Casio FX‑991ES and 991ex? Which one should I prefer for my VTU exams? - Quora
![Casio CASIO FX 991ES PLUS A student college entrance exam calculator scientific calculator|calculator paypal|calculate tax calculatorcalculator for desktop pc - AliExpress Casio CASIO FX 991ES PLUS A student college entrance exam calculator scientific calculator|calculator paypal|calculate tax calculatorcalculator for desktop pc - AliExpress](https://ae01.alicdn.com/kf/HTB10kswKXXXXXXxXXXXq6xXFXXXJ/Casio-CASIO-FX-991ES-PLUS-A-student-college-entrance-exam-calculator-scientific-calculator.jpg_Q90.jpg_.webp)
Casio CASIO FX 991ES PLUS A student college entrance exam calculator scientific calculator|calculator paypal|calculate tax calculatorcalculator for desktop pc - AliExpress
![Casio FX-991ES Plus Scientific Calculator Fx 991 Es + FX991ES New CE Logo Sealed 4971850182276 | eBay Casio FX-991ES Plus Scientific Calculator Fx 991 Es + FX991ES New CE Logo Sealed 4971850182276 | eBay](https://i.ebayimg.com/thumbs/images/g/MKEAAOSwU4JiNdRy/s-l200.jpg)
Casio FX-991ES Plus Scientific Calculator Fx 991 Es + FX991ES New CE Logo Sealed 4971850182276 | eBay
![Casio fx-991es Plus Scientific Calculator fx991es + fx 991 es 417 Functions New 4971850182276 | eBay Casio fx-991es Plus Scientific Calculator fx991es + fx 991 es 417 Functions New 4971850182276 | eBay](https://i.ebayimg.com/images/g/hA8AAOSwBahVcDeL/s-l400.jpg)
Casio fx-991es Plus Scientific Calculator fx991es + fx 991 es 417 Functions New 4971850182276 | eBay
![Casio FX-991ES Plus Scientific Calculator Fx 991 Es + FX991ES New CE Logo Sealed 4971850182276 | eBay Casio FX-991ES Plus Scientific Calculator Fx 991 Es + FX991ES New CE Logo Sealed 4971850182276 | eBay](https://i.ebayimg.com/images/g/QzEAAOSw5-lbjj4U/s-l400.jpg)