Hello
Let us quickly connect on "CHAT" and discuss the requirements of your project "Add an addition and subtraction function ".
I have rich experience in Designing and Developing Custom and theme-based websites and have expertise with APIs/Plugins Development/Customization/Integration.
Below are the skills I have experience with:
HTML, HTML5, Bootstrap, CSS,CSS3,JavaScript,jQuery, WordPress/Woo Commerce, Laravel, PHP, CodeIgniter, Open Cart, APIs/Plugins/Restful APIs Customization/Integrations, Payment Gateway integrations, Optimization/maintenance.
Let us discuss your project in more detail, identify how my skill set will work best for you, and provide immense value to your organization.
Best regards,
Ashish.