**CONTENT:**

- Addition, Subtraction, Multiplication and Division operations in module arithmetic
- Application to daily life

**ADDITION AND SUBTRACTION:**

In modular arithmetic, addition and subtraction are symbolized by ⊕ and ⊖ respectively. In the table we enter only the remainders when a pair of elements in the ⊕ on the set {0,1,2,3,4} modulo 5

⊕ | 0 | 1 | 2 | 3 | 4 |
---|---|---|---|---|---|

0 | 0 | 1 | 2 | 3 | 4 |

1 | 1 | 2 | 3 | 4 | 0 |

2 | 2 | 3 | 4 | 0 | 1 |

3 | 3 | 4 | 0 | 1 | 2 |

4 | 4 | 0 | 1 | 2 | 3 |

Addition ⊕ in mod 5

1.

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