# Math matic S-666

The Math matic S-666 is an arithmetic calculator with algebraic logic. It has 4 functions, 16 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is PP3 9V.

## Facts at a glance:

Feature | Value |
---|---|

Type | Arithmetic |

Functions | 4 |

Keys | 16 |

Logic | Algebraic |

Display type | LED |

Length | 146mm |

Width | 76mm |

Power Source | PP3 9V |

Year introduced | 1974 |

## Replacements:

If you have a Math matic S-666 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: