This study tried to explore the degree of representation of math textbooks for grades (4-8) in the Kingdom of Saudi Arabia concerning the key concepts, shape, and levels of questions used in the TIMSS test. The study population of this study includes both students and teachers from fourth grade to eighth grade. The goal of this study was associated with six key concepts including numbers and their operations, algebra, geometry, measurement, statistics and probability, and a pro-rata. The researcher analyzed the questions and exercises used in the math textbooks to identify their effectiveness and efficiency. In addition, the researcher also calculated the percentages, the levels, and the shape for each key concept. The results of the study were organized in frequency tables. In the light of those results, the researcher recommended the need to rewrite the mathematics curriculum and textbooks for grades (4-8) to focus on the level of questions and exercises used to be best fit for the students comprehending level. Furthermore, the researcher also recommended to developed questions in the form of multiple-choice focusing on the content of the main concepts (statistics and probabilities, and a pro-rata) because of its importance in the life of the student. In addition, the resented figured out the need of conducting similar studies on the analysis of the results for Saudi students in an international math test, which was conducted in 2011 and 2015.