index.html

<script>
	xModalidad = "1";
</script>
<script src="<%=ResolveUrl("asset/main.js") %>"></script>
<link rel="Stylesheet" href="<%=ResolveUrl("asset/main.css") %>" />
<div id="clockContainer">
	<i class="fa fa-clock-o"></i>&nbsp;&nbsp;<span id="lblSegundos"></span>
</div>
<div ng-app="app" >


	<div id="tTablero" class="moda-<%=Me.Modalidad %>" ng-controller="mainController">
		<span class="el digit">
			{{ num1 }}
		</span>
		<span class="el  symbol">
			{{ sign1 }}
		</span>

		<span class="el digit">
			{{ num2 }}
		</span>
		<span class="el  symbol">
			{{ sign2 }}
		</span>
	
		<span class="el digit">
			{{ num3 }}
		</span>
		<span class="el  symbol">
			{{ sign3 }}
		</span>

		<span class="el digit">
			{{ num4 }}
		</span>

		<span>
			=
		</span>

		<span class="el digit">
			{{ result }}
		</span>

	</div>
</div>

main.js

angular
	.module('app', [])
	.controller('mainController', ['$scope', '$window', function ($scope, $window) {
		$scope.minNumber = 2;
		$scope.maxNumber = 9;

		$scope.num1 = 1;
		$scope.num2 = 1;
		$scope.num3 = 1;
		$scope.num4 = 1;

		$scope.sign1 = '';
		$scope.sign2 = '';
		$scope.sign3 = '';

		$scope.signs = ['', '+', '-', '*', '/'];

		$scope.wholeQuestion = '';
		$scope.result = '';

		if ($window.xModalidad == 'MtOperadorCorrecto1') {
			$scope.signs = ['', '+', '-'];
		}
		if ($window.xModalidad == 'MtOperadorCorrecto2') {
			$scope.signs = ['', '*', '/'];
		}
		

		$scope.buildQuestion = function () {
			$scope.num1 = ConsolaUtilidad.funciones.numeroAleatorio($scope.minNumber, $scope.maxNumber);
			$scope.num2 = ConsolaUtilidad.funciones.numeroAleatorio($scope.minNumber, $scope.maxNumber);
			$scope.num3 = ConsolaUtilidad.funciones.numeroAleatorio($scope.minNumber, $scope.maxNumber);
			$scope.num4 = ConsolaUtilidad.funciones.numeroAleatorio($scope.minNumber, $scope.maxNumber);
			ConsolaUtilidad.funciones.desordenar2($scope.signs);
			$scope.sign1 = $scope.signs[0];
			ConsolaUtilidad.funciones.desordenar2($scope.signs);
			$scope.sign2 = $scope.signs[1];
			ConsolaUtilidad.funciones.desordenar2($scope.signs);
			$scope.sign3 = $scope.signs[0];

			$scope.wholeQuestion = $scope.num1 + $scope.sign1 + $scope.num2 + $scope.sign2 + $scope.num3 + $scope.sign3 + $scope.num4; 
			$scope.result = eval($scope.wholeQuestion);

		}


		$scope.buildQuestion();

	}]);//endmodule