Question setting method and device based on addition, subtraction, multiplication and division and computer-readable storage medium

Abstract

The invention relates to a question setting method and device based on addition, subtraction, multiplication and division and a computer-readable storage medium. The method of the invention includes:accepting a user instruction, and acquiring a corresponding standard formula according to the user instruction; judging whether the standard formula contains a second-level nested-sub-expression; dividing the standard formula to obtain expression factors if the standard formula has no second-level nested-sub-expression; marking value ranges and weights of the expression factors; carrying out random value assignment for each expression factor in the value range, wherein value assignment matches the user instruction; and calculating a result, and returning a question if the result is in a valuerange and the value range matches intermediate numbers of operation. According to the method provided by the invention, configuration rules can be flexibly adjusted according to condition differences,the weights can be set, operation practice questions of addition, subtraction, multiplication and division of different complexity degrees can be presented to meet multiple needs of a user, and userexperience can be improved.

Description

technical field [0001] The invention belongs to the field of information-based digital education, and in particular relates to a method for formulating questions based on addition, subtraction, multiplication and division, a device and a computer-readable storage medium. Background technique [0002] With the development of computer technology, mobile devices and the advancement of the Internet age, people's learning methods and methods have quietly changed. Doing exercises is an indispensable and important part of the learning process. In the sea of ​​questions on the Internet, it will take a lot of time for the question maker to find exercises of appropriate difficulty and calculate the correct answer. For primary school students, there are many oral calculations on the Internet that are mixed with the four mathematics. Questions, but they are basically traversal, and there are fewer mixed calculation questions (basically fixed questions), so that the question maker cannot...

AI Technical Summary

Problems solved by technology

In the sea of ​​questions on the Internet, it will take a lot of time for the question maker to find exercises of appropriate difficulty and calculate the correct answer. For primary school students, there are many oral calculations on the Internet that are mixed with the four mathematics. However, it is basically a traversal method, and there are fewer mixed calculation questions (basically fixed questions), so that the question maker cannot extract mixed calculation questions of different ranges, and oral calculation questions cannot limit the results.

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