Let’s introduce what the arithmetic operators mentioned above can be described as instructions.

Command | Meaning |
---|---|

ADD | Addition |

SUBTRACT | Subtraction |

MULTIPLY | Multiplication |

DIVIDE | Division |

## ADD：Addition

1 2 3 |
DATA: result TYPE I. result = 3. ADD 2 TO result. |

First, the variable: result is set to 3, and then 2 is added. Since ADD 2 TO 3 has the same meaning as 3 + 2, 5 is set to the variable: result as a result. The part described as 2 can be described as a variable.

## SUBTRACT：Subtraction

1 2 3 |
DATA: result TYPE I. result = 3. SUBTRACT 2 FROM result. |

First, the variable: result is set to 3, and then 2 is subtracted. SUBTRACT 2 FROM 3 has the same meaning as 3-2, so 1 is set as the result: variable: result.

## MULTIPLY：Multiplication

1 2 3 |
DATA: result TYPE I. result = 3. MULTIPLY result BY 2. |

First, the variable: result is set to 3, and then it is multiplied by 2. Since MULTIPLY 3 BY 2 has the same meaning as 3 * 2, 6 is set to the variable: result as a result.

## DIVIDE：Division

1 2 3 |
DATA: result TYPE I. result = 6. DIVIDE result BY 2. |

First, set the variable: result to 6, and then divide it by 2. Since MULTIPLY 6 BY 2 has the same meaning as 6/2, 3 is set as the result: variable: result.

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