Every Math Student should have a Casio Fx 115 or Casio 991 ES Calculator.
Remember these can be important to help you check over your exam!
Purchase one via the following Amazon links below.
https://www.amazon.com/CSIRO-CS-991ES...
https://www.amazon.com/Casio-fx-115ES...
https://www.amazon.com/Casio-fx-991ES...
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