const add=(num1,num2)=>{ return num1+num2; } const subtract = function() { }; const sum = function() { }; const multiply = function() { }; const power = function(num,power) { let rez=1; for(let i=1;i<=power;i++){ rez*=num; }; return rez } const factorial = (num) =>{ let res=1; for(i=1;i<=num;i++){ res*=i; } return res; } // Do not edit below this line module.exports = { add, subtract, sum, multiply, power, factorial };