# jQuizMe Example: Simple Math Quiz

Here’s an example of jQuizMe.
Goal: Make a quiz for Addition, Subtraction and Multiplication for two digit numbers.

Steps:

1. Make a random number generator.
2. Make a function to form a question and answers.
3. Form the quiz.
4. Call jQuizMe

Step 1:
I wrote a random number generator in javascript here.

```1 2 3 4 var getRandomNum = function( i, decLen ){ var powOf10s = Math.pow( 10, decLen || 0 ); return i ? Math.floor( powOf10s * Math.random() * i ) / powOf10s : Math.random(); };```

Or.. you could just use Math.floor( Math.random() * number ).

Step 2 & 3: (Due to time constraints I combined step 2 and 3.)

```1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 var link = "http://bateru.com/news/2011/04/learn-sig-figs-in-no-time/"; var ops = operations = [ " + ", " - ", " * ", " / " ]; var precision = 2;   var arrOfRandomNum = function( arrLength, max, decLen ){ if( arrLength < 0 ){ return false; } var arr = [], i = arrLength; while( i-- ){ arr[ i ] = getRandomNum( max, decLen ); } return arr; }; var makeQuiz = function(){ var quiz = { "fill":[] }; var question = '', nums = []; var i = questionLength = 10; while( i-- ){ nums = arrOfRandomNum( 2, 19 ); question = nums.join( ops[ getRandomNum( ops.length ) ] ); quiz.fill.push({ ques: question, ans: eval( question ).toPrecision(precision) }); } return quiz; }```

Step 4:

```1 2 3 \$( "#quiz" ).jQuizMe( makeQuiz(), { intro: ops.join(',') + " quiz.<br>Note: Your answer must have " + precision + " <a href='"+link+"'>sig figs</a>." });```

Here’s the working demo.

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