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.
New Math Drill ( Level 1) : Ratios and Proportions Problem 2(1) TOHO-2014
Length of both side of a square is made 1 cm longer each and a new square is made. The area of new square is 19 cm2 bigger than the original square. Find the original square area.
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