This task involves creating questions from a given passage that involve some kind of complex reasoning (including numerical reasoning).
The generated questions must require looking at more than one part of the passage to answer. Try to use a variety of reasoning types in your questions (some of the sample reasoning types are illustrated in the 'positive examples' field) and also have a variety of answer types (spans, numbers, dates). A span is a continuous phrase taken directly from the passage or question. In such questions, the answer spans are recommended to be five words. Questions with answer type "number", are expected to start with "How many". For instance, "How long did an event last?" can be phrased as "How many years did an event last?". To increase diversity, try to create more questions for which the answer will be multiple spans. Please create questions that require AT LEAST 2 arithmetic operations as illustrated in the 'positive examples' field. You are encouraged to try DIFFERENT COMBINATIONS of operations and not just limit to the combinations shown in those examples. The more challenging questions you create, the better it is.

Passage: During the 2008/09 school year there were 1,502,257 students in the entire Swiss educational system. In kindergarten or pre-school, there were 152,919 students (48.6% female). These students were taught by 13,592 teachers (96.0% female) in 4,949 schools, of which 301 were private schools. There were 777,394 students (48.6% female) in the obligatory schools, which include primary and lower secondary schools. These students were taught by 74,501 teachers (66.3% female) in 6,083 schools, of which 614 were private. The upper secondary school system had 337,145 students (46.9% female). They were taught by 13,900 teachers (42.3% female) in 730 schools, of which 240 were private. The tertiary education system had 234,799 students (49.7% female). They were taught by 37,546 teachers (32.8% female) in 367 schools.
How many fewer students were in kindergarten or pre-school than in obligatory school and tertiary education combined?