How to make your child enjoy solving math problems? Children enjoy doing their own shopping at the store. At the same time, they solve very difficult mathematics problems in their minds related to counting money and purchases. But in elementary school mathematics courses, the subjects of problems are often far from the practical, vital interest of the student. By the way, even in the 9th grade mathematics exam tests, along with the algebra and geometry sections, there is a section called “Real Mathematics,” which also includes tasks that require the ability to count money. This manual contains problems for all the main sections of the mathematics course for elementary school. However, solving all types and types of problems is based on the use of practical skills - the child calculates how much something costs, gets acquainted with the currencies of different countries. This approach will contribute to the development of students’ cognitive interests, strengthen the developmental and educational functions of the lesson, and implement interdisciplinary connections in the process of learning mathematics. The manual can be used in mathematics lessons to explain and reinforce the material studied; to control knowledge; as additional tasks for individual students; to fill gaps in students’ knowledge, as well as for studying at home.