Mathemania is a place where students can learn math lessons by solving free math worksheets sorted by difficulty. Here you can find from a basic math, algebra to geometry and advanced math lessons with worksheets. Each lesson has an entertaining type of content that can be a life saver in a situation when you need to learn math efficiently. At the end of each lesson there are worksheets to test learned knowledge. Our main intention is to make mathematical content free to all because we think that education should be available to everyone. This site is very pleasant to eyes so we hope that it can help you in achieving your goal. more info >>

If you work with integer numbers then is a good idea to know how to factorize them into prime factors, calculate their greatest common factor and least common multiple, check on numbers divisibility and also find all divisors of a number and much more. One example where you can apply all the above described knowledge is when you have to reduce fractions to lower terms (simplify them). numere-prime.ro website comes in handy and can easily help you with all the operations described above, and also with explanations, where the case. An alternative practical way to compute the greatest common divisor and the least common multiple for large numbers is also presented on the website: the Euclidean algorithm. And if you also need to find without much calculation the prime numbers in a list of ascending sorted numbers, you can use the Sieve of Eratosthenes - by this method you eliminate all the multiples of all prime numbers, from a list, up to a given limit, starting with the smallest, 2, 3, 5, 7, ... and so on. This website can help users a lot with their math lessons. Users can set the preferred language of the content to either English, German, Spanish, French, Italian or Romanian. more info >>

Do you need to make basic operations with ordinary fractions? Do you need to learn the basics? fractii.ro website offers you an online engine that is able to take your input and automatically add ordinary fractions, subtract, multiply, reduce to lower terms, compare two or sort out multiple fractions. All the operations can be run with only two fractions or more. The beauty is that this engine will not only compute the final result, but also describe the necessary steps to be taken in order to get to the result, with step by step explanations. So, all in all, this website could be an excellent tool for people that learn faster by examples. For those who would like to also learn the basics, the website contains a theory index page that contains links to all the important topics to be understood when working with fractions. This website can help users with their math lessons. Only two languages are available for the moment, English and Romanian, but soon some other languages could be added. more info >>

This is a website that helps users with percentages calculations. Percentages are an important part of our day to day life and it’s important to know how to work with them. Simply put, percentages are the end result of calculating some percent of numbers, where one percent is one hundredth of a given value. You can calculate on this website percentages from numbers in three different ways, by using three different forms that can do that. Also, you can convert decimal and ordinary fractions or rations into percentages. In case you need to compare two numbers in order to calculate the relative percentage change (increase or decrease) you also have the right tools on site. You can also increase or decrease a number by some percentage of its value. more info >>