# Operations Every operation is of form: `OP argument1` , or `argument1 OP argument2` and returns a value. In the following list, each operation is listed, including the [data structure](https://doc.moost.io/platform-manual/rules/rule-language/data-structures) and [data type](https://doc.moost.io/platform-manual/rules/rule-language/data-types) of each argument, and the return value. This is done by using form *`DataStructure`*. ## Overview Following operations are provided: [plus](https://doc.moost.io/platform-manual/rules/rule-language/operations/plus "mention") [minus](https://doc.moost.io/platform-manual/rules/rule-language/operations/minus "mention") [multiply](https://doc.moost.io/platform-manual/rules/rule-language/operations/multiply "mention") [divide](https://doc.moost.io/platform-manual/rules/rule-language/operations/divide "mention") [negate](https://doc.moost.io/platform-manual/rules/rule-language/operations/negate "mention") [less-than](https://doc.moost.io/platform-manual/rules/rule-language/operations/less-than "mention") [less-or-equal](https://doc.moost.io/platform-manual/rules/rule-language/operations/less-or-equal "mention") [equal](https://doc.moost.io/platform-manual/rules/rule-language/operations/equal "mention") [not-equal](https://doc.moost.io/platform-manual/rules/rule-language/operations/not-equal "mention") [greater-or-equal](https://doc.moost.io/platform-manual/rules/rule-language/operations/greater-or-equal "mention") [greater](https://doc.moost.io/platform-manual/rules/rule-language/operations/greater "mention") [and](https://doc.moost.io/platform-manual/rules/rule-language/operations/and "mention") [or](https://doc.moost.io/platform-manual/rules/rule-language/operations/or "mention") [not](https://doc.moost.io/platform-manual/rules/rule-language/operations/not "mention") [format](https://doc.moost.io/platform-manual/rules/rule-language/operations/format "mention") [attribute-accessor](https://doc.moost.io/platform-manual/rules/rule-language/operations/attribute-accessor "mention")