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Casio fx-280 (FRACTION)

Casio fx-280
Image: Wikimedia CC BY-SA 3.0

The Casio fx-280 is a scientific calculator with 10 digits precision and algebraic logic. It has 38 keys, and an LCD (liquid crystal) display. The power source is LR44 1.5V. The calculator was manufactured in China.

Facts at a glance:

FeatureValue
TypeScientific
Keys38
Precision10
LogicAlgebraic
Display typeLCD
Power SourceLR44 1.5V
CountryChina
Year introduced1995

Replacements:

If you have a Casio fx-280 that is no longer working, you can first try replacing the LR44 1.5V battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent. We suggest the following current model as a replacement:

See other calculators by Casio