This site introduces problems of Sansue, i.e. mathematics which Japanese schoolchildren learn at elementary school. Problems are selected mainly from entrance examinations of famous junior high schools for 6th grade Japanese schoolchildren (12 years old) to take. We found Sansue is not only one of subjects at school but one of Japanese culture. Please enjoy Japanese Sansue culture.
Five persons, A, B, C, D, and E, are standing in a line. - A is not the foremost. - E is close behind A. - There are two persons between C and A. - D is close behind C. Write five persons in order from the first.
