It is important to learn Spanish because it is the 3rd most spoken language in the world and it is the official language of 21 countries. Numbers are used at all the time in our everyday life: when talking about temperature and distance; while counting; when asking prices or measurements; while telling the time; etc. Spanish speaking countries use the metric system. We use a dot instead of a comma for the thousands and more (1.000). We use a comma instead of a dot for the decimals (2,5). While using the math it can be almost the same but we might use different methods or set up of the equations (an example is division).