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Math matic 777

The Math matic 777 is an arithmetic calculator with algebraic logic. It has an LED (light-emitting diode) display typical of calculators of this era. The power source is PP3 9V.

Facts at a glance:

Display typeLED
Power SourcePP3 9V
Year introduced1975


If you have a Math matic 777 that is no longer working, you can first try replacing the PP3 9V battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.

We suggest the following current models as possible replacements:

See other calculators by Math matic