发明名称 NUMERICAL CALCULATION DEVICE AND METHDO THEREOF
摘要 The present invention relates to a system and a method for learning numerical calculation. According to an embodiment of the present invention, the system for learning numerical calculation comprises: a formula generator (40) which generates a mathematical problem having an answer of at least any one number among limited numbers from 0 to 9; a display device to display the mathematical problem generated from the formula generator (40); and an input unit (10) to which the limited numbers are inputted so as to input the answer for the mathematical problem. According to an embodiment of the present invention, the system for learning numerical calculation only allows a user to input limited numbers from numbers 0 to 9 as an answer for a mathematical problem, and thus the time and effort required to input a number to the system is minimized, thereby enabling the user to focus on solving the mathematical problem.
申请公布号 KR20160039436(A) 申请公布日期 2016.04.11
申请号 KR20140132497 申请日期 2014.10.01
申请人 KIM, DEOK GYU 发明人 KIM, DEOK GYU
分类号 G09B19/02;G09B5/02 主分类号 G09B19/02
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