In 2006, the total score of Dingxi senior high school entrance examination was 750. In 2006, there were 6 subjects in Dingxi senior high school entrance examination, including Chinese, mathematics, English, physics, chemistry and politics. The total scores of Chinese, Mathematics and English are 150, and the total scores of materialization and politics are 100. 150 times 3+ 100 times 3=750, so the total score of Dingxi senior high school entrance examination adds up to 750 points.