var number = 10.2;
var number2 = 5;
alert('Numero: ' + number);
alert('Numero2: ' + number2);
number = parseInt(number);
number2 = parseFloat(number2).toFixed(2);
alert('Inteiro: ' + number);
alert('Float: ' + number2);
number2 = parseFloat(number2).toPrecision(2);
alert('Float(Precision): ' + number2);
var random = Math.random();
alert(random);
random = Math.round(Math.random() * 6);
alert(random);