1. Time management: We use mathematical concepts to plan and arrange daily activities, such as timetable and countdown.

2. Financial management: Mathematical concepts play an important role in personal and commercial financial management, including budget, investment calculation and loan interest calculation.

3. Shopping and trading: When shopping, we use mathematical concepts to calculate prices, discounts, taxes, etc. And currency exchange and exchange rate calculation.

4. Measurement and geometry: We use mathematical concepts to measure and calculate length, area and volume, for example, when decorating houses or making furniture.

5. Cooking and recipes: Mathematical concepts are also applied in cooking and recipes, such as scores, proportions and percentages, to adjust the quantity and formula of ingredients.

6. Transportation and navigation: Mathematical concepts are used to calculate distance, speed, time, etc. , and help us plan the route and use navigation tools.

7. Health and exercise: Mathematical concepts are used to calculate body mass index (BMI), heart rate, calorie consumption, etc. Help us monitor our health and make an exercise plan.

8. Statistics and data analysis: use mathematical concepts to collect, sort out and analyze data to help us make decisions and solve problems.

In a word, mathematical concepts are everywhere in our daily life. They help us solve various problems and improve the quality and efficiency of life.