This bachelor´s thesis is focused on exercises and their solutions from financial mathematics. The collection is for the lower secondary school. The starting points for this thesis are the National Financial Education Strategy, Framework Education Programme for primary schools, School Education Programme of selected schools, Maths textbook for the lower secondary school. The first part contains a definition of the concept of financial literacy, as well as an assessment of the current situation of financial literacy. The second part presents exercises that are divided by curriculum. The exercises are aimed at using mathematical operations to work with finances in everyday life. There is a concisely defined theory on each topic