**In practice we have learned how to add three digits in a column so as to take care of the carry digits immediately. In the case of adding two decimal numbers the carry is never greater than 1 so this algorithmic extension is simplified considerably. Similarly in binary systems!**

**
Triple addition table:**

A | B | C | CARRY | UNIT |

0 | 0 | 0 | 0 | 0 |

0 | 0 | 1 | 0 | 1 |

0 | 1 | 0 | 0 | 1 |

0 | 1 | 1 | 1 | 0 |

1 | 0 | 0 | 0 | 1 |

1 | 0 | 1 | 1 | 0 |

1 | 1 | 0 | 1 | 0 |

1 | 1 | 1 | 1 | 1 |

Carry
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Addend 1 | ||

Addend 2 | ||

Results | ||

Last updated 2000/02/04

© J.A.N. Lee, 2000.