Calling a button with javascript is simple using document.getbyID but how do u do it with no id

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@model ForPreson.Models.Game_Calculations

<script src="~/js/jquery.min.js" type="text/javascript"></script>
@using (Html.BeginForm())
{
    <div class="editor-field">
    @for(int i=0;i<1;i++)
    {
        String playerFifty = "player1" +"Fifty";
        String playerHundred = "player1" + "Hundred";
        String playerTwoHundred = "player1" + "TwoHundred";
       
        <br />  
       
         <input id="B1"  type="submit" value="50" name="@playerFifty" />
        <input   type="submit" value="100" name="@playerHundred"/>
        <input  type="submit" value="200" name="@playerTwoHundred"/>
     
    }
    </div>
    
    
}

Calling a button with javascript is simple using document.getbyID but how do u do it with no id
The above code subtracts values from the database chip tally as the buttons are pressed but when I use an onclick event the db functionality crashes help please