anggithub2.html

<div class="container">
    <br />
    <div class="row">
        <h1>
            Welcome to {{ title }}!
        </h1>
    </div>
    <br />
    <div class="row">
        <div class="col-md-6">
            <input type="number" [(ngModel)]="num1" placeholder="Enter Number 1" class="form-control" />
        </div>
        <div class="col-md-6">
            <input type="number" [(ngModel)]="num2" placeholder="Enter Number 2" class="form-control" />
        </div>
    </div>
    <br />
    <div class="row text-center">
        <div class="col-md-3">
            <button class="btn btn-info" (click)='add()'>Add</button>
        </div>
        <div class="col-md-3">
            <button class="btn btn-info" (click)='substract()'>Substract</button>
        </div>
        <div class="col-md-3">
            <button class="btn btn-info" (click)='multiply()'>Multiply</button>
        </div>
        <div class="col-md-3">
            <button class="btn btn-info" (click)='divide()'>Divide</button>
        </div>
    </div>
    <br />
    <div class="row">
        <div class="col-md-5 col-md-offset-4">
            <h2>Result = {{result}} </h2>
        </div>
    </div>
</div>