# Arithmetic operations Note that these functions can be embedded into other functions. That means they will return the result, either directly into the template for rendering as part of the response, or if they are enclosed in another function, then the result will be returned into that function. ### Addition ```handlebars {{ add }} ``` example: ```handlebars {{ add this.cost this.markup '0.00' }} ``` ### ### Subtraction ```handlebars {{ subtract }} ``` example: ```handlebars {{ subtract this.fullprice this.discount '0.00' }} ``` ### ### Multiplication ```handlebars {{ multiply }} ``` example: ```handlebars {{ multiply this.quantity this.price '0.00' }} ``` ### ### Division ```handlebars {{ divide }} ``` example: ```handlebars {{ divide this.discount '10' '0.00'}} ``` ### ### Summing Arrays You can also sum an array of numbers using the following function: ```handlebars {{ sum }} ``` example 1: ```handlebars {{ sum (split (Request.Body 'jsonpath' '$.price[*]') ' ') '0.00' }} ``` example 2: ```handlebars {{ sum myArrayOfNumbers '0.00' }} ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.cloud.hoverfly.io/create-simulations/using-templating-in-simulations/arithmetic-operations.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.