I’m trying to use a for loop to increment through multiple button elements so I can assign different actions to them

I cannot figure this out, Here is the code,
I am very much new to javascript and I’ve read through MDN docs and haven’t come up with anything.

let numberOfbuttons = document.querySelectorAll(".numbers");

for (i = 0; i < numberOfbuttons; i++) {
  document.querySelectorAll(".numbers")[i].addEventListener("click", function() {
    document.querySelector(".result").innerHTML = "1"
  })
};

body {
  background-color: blanchedalmond;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr;
}

.Calc {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr 1fr 1fr;
  grid-area: 2/2;
}

button[value="0"] {
  grid-area: 5/2/5/2;
}

button {
  background-color: aliceblue;
  color: black;
}

button[value="AC"] {
  grid-area: 5/1;
}

button[value="+"] {
  grid-area: 3/4;
}

button[value="-"] {
  grid-area: 2/4;
}

.result {
  grid-area: 1/1/1/5;
  background-color: #CBD2A4;
  text-align: center;
}

<!DOCTYPE html>
<html lang="en" dir="ltr">

<head>
  <meta charset="utf-8" />
  <title>Calculator</title>
  <link rel="stylesheet" href="styles.css" />
  <link href="https://fonts.googleapis.com/css?family=Arvo" rel="stylesheet" />
</head>

<body>
  <div class="Calc">
    <div class="result">
      <p>Type in your "numbers"</p>
    </div>

    <button class="numbers">1</button>
    <button class="numbers">2</button>
    <button class="numbers">3</button>
    <button class="numbers">4</button>
    <button class="numbers">5</button>
    <button class="numbers">6</button>
    <button class="numbers">7</button>
    <button class="numbers">8</button>
    <button class="numbers">9</button>
    <button class="numbers">0</button>
    <button value="AC">AC</button>
    <button value="+">+</button>
    <button value="-">-</button>
    <button value="*">x</button>
    <button value="/">/</button>
    <button value="=">=</button>
  </div>
  <script src="index.js" charset="utf-8"></script>
</body>

</html>