Math problem, Introduction: To prepare for the start of the school year, Malek and his brother Alessio order various articles on a website. As they have very different tastes, they never choose the same articles. Malek states that the total cost of his purchases will be greater than that of his brother Alessio. Concepts: Numbers, digits, decomposing numbers, addition and subtraction. This product includes: The math problem with pages for calculations and results compilation;Comments for the teac