EdX offers provisional support for this problem type.
You can create a problem that combines a multiple choice and numerical input problems. Students not only select a response from options that you provide, but also provide more specific information, if necessary.
Currently, students can only enter numerals in the text field. Students cannot enter words or mathematical expressions, which might be confusing to students who are accustomed to other edX numerical input fields.
You can make a calculator available to your learners on every courseware page. For more information, see Calculator Tool.
To create a multiple choice and numerical input problem:
<problem> The numerical value of pi, rounded to two decimal places, is 3.24. <choicetextresponse> <radiotextgroup> <choice correct="false">True.</choice> <choice correct="true">False. The correct value is <numtolerance_input answer="3.14"/>.</choice> </radiotextgroup> </choicetextresponse> </problem>