Adding my solution, hope this helps.

// 1. Attach this file -- math.js -- to the index.html file using a <script> tag

// 2. Add an alert to announce the program with a message like "Let's do some math!"

alert("Let's do some math");

// 3. Create a variable and use the prompt() method to collect a number from a visitor

let firstInput = prompt("Please type a number.");

// 4. Convert that value from a string to a floating point number

firstInput = parseFloat(firstInput);

// 5. Repeat steps 3 and 4 to create a second variable and collect a second number

let secondInput = prompt("Please type another number."); secondInput = parseFloat(secondInput);

// 6. Create a new variable -- message -- which you'll use to build // a complete message to print to the document // Start by creating a string that includes <h1> tags as well // and the two input numbers. The string should look something like this: // "<h1>Math with the numbers 3 and 4</h1>" where the two numbers are // the values input from the user. Use string concatenation to create this // and make sure you actually perform the math on the values by // using the + symbol to add their values together

let message = <h1>Math with the numbers ${firstInput} and ${secondInput}.</h1><br>;

// 7. Add another string to the message variable. // The string should look something like this after concatenation: // "3 + 4 = 7"

// 8. Add a line-break tag -- <br> -- to the message variable

// 9. Continue to add to the message variable to include strings // demonstrating multiplication, division and subtraction // For example: // "3 * 4 = 12" // "3 / 4 = 0.75" // "3 - 4 = -1"

message += <p>${firstInput} + ${secondInput} = ${firstInput + secondInput}</p>; message += <p>${firstInput} * ${secondInput} = ${firstInput * secondInput}</p>; message += <p>${firstInput} / ${secondInput} = ${firstInput / secondInput}</p>; message += <p>${firstInput} - ${secondInput} = ${firstInput - secondInput}</p>;

// 10. Use the document.write() method to print the message variable // to the web page. Open the finished.png file in this workspace // to see what the completed output should look like

document.write(message);