1. Which numbers are prime numbers and which are composite numbers?

    1) Name 6 first prime numbers.
    2) Name all composite numbers which are between 30 and 70.

2. Give 5 examples of proper fractions, improper fractions and mixed numbers.

3. Transform into improper fraction:

4. Transform the decimal fractions into common fractions:

    0,125    0,06    0,56    0,3125    26,6        105,45