text: "use strict";
  
  module.exports = {
    add: function (a, b) {
      return a + b;
    },
  
    subtract: function (a, b) {
      return a - b;
    },
  
    multiply: function (a, b) {
      return a * b;
    },
  
    divide: function (a, b) {
      return a / b;
    }
  };