For students in different grades, the corresponding worksheets are different, as some children haven’t learned about multiplication and division, some students can’t do arithmetic with numbers outraging 10 or 100, some students do not know how parentheses work, and some haven’t learned about decimals.
That's why we need an algorithm to generate an expression in a reversed manner so that we can accurately customize the expression during the generation.
To learn more about this algorithm, check THIS ESSAY of mine out.
Check the core code HERE.
