| 摘要 |
The present invention relates to a machine for learning four fundamental arithmetic operations, which includes a user input unit inputting a number or an operator; and a control unit connected to the user input unit, outputting an equation of the four fundamental arithmetic operations, which has at least one empty term, calculating a user question regarding the calculation equation of the four fundamental arithmetic operations completed by using a number or an operator filled in at least one empty term entered through the user input unit to thereby calculate a calculated valve, and then comparing the calculated value and a correct value to determine whether the number or operator entered through the user input unit is the correct answer or not. The control unit generates a preliminary question and performs a calculation operation on the preliminary question to determine effectiveness. Then, the control unit chooses the preliminary question as a final question if the preliminary question is determined as an effective question and outputs the calculated value of the final question and the preliminary question calculated through the effectiveness determination as the equation of the four fundamental arithmetic operations. Accordingly, since a user learns the four fundamental arithmetic operations regardless of time and place, learning efficiency may be increased; and as the final question provided to a game player is newly generated every time, the game player always faces a new question, thus stimulating interest and promoting fun of the game player. |
