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![Logical and negation operations, E-27 | Casio fx-991ES PLUS User Manual | Page 28 / 46 | Original mode Logical and negation operations, E-27 | Casio fx-991ES PLUS User Manual | Page 28 / 46 | Original mode](https://www.manualsdir.com/manuals/65932/28/casio-fx-991es-plus-page28.png)
Logical and negation operations, E-27 | Casio fx-991ES PLUS User Manual | Page 28 / 46 | Original mode
![Ayomide Akande (IMAGO DEI) on Twitter: "Quick question ; How is a calculator - the same casio fx-991ES plus we use at home- $75 (tax not yet included)😟? That's ~34,000 naira 😂. Ayomide Akande (IMAGO DEI) on Twitter: "Quick question ; How is a calculator - the same casio fx-991ES plus we use at home- $75 (tax not yet included)😟? That's ~34,000 naira 😂.](https://pbs.twimg.com/media/FB9t4ncVUAQ0UTG.jpg:large)
Ayomide Akande (IMAGO DEI) on Twitter: "Quick question ; How is a calculator - the same casio fx-991ES plus we use at home- $75 (tax not yet included)😟? That's ~34,000 naira 😂.
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