.. _Single Select and Numerical Input:

Add a Single Select and Numerical Input Problem
###############################################

.. tags:: educator, how-to

You can create a problem that combines a single select and numerical input
problems. Students not only select a response from options that you provide,
but also provide more specific information, if necessary.

.. image:: /_images/educator_how_tos/MultipleChoice_NumericalInput.png
  :alt: Image of a single select and numerical input problem

.. note::
 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 Open edX numerical input fields.

 You can make a calculator available to your learners on every unit
 page. For more information, see :ref:`Calculator`.

.. _Create an MCNI Problem:

Create a Single Select and Numerical Input Problem
**************************************************

To create a single select and numerical input problem, follow these steps.

#. In the unit where you want to create the problem, click **Problem** under
   **Add New Component**.
#. Click in **Advanced problem types**. Then click **Blank Advanced Problem**.
#. In the component editor, paste the code from below.
#. Replace the example problem and response options with your own text.
#. Click **Save**.

.. _MCNI Problem Code:

Single Select and Numerical Input Problem Code
**********************************************

.. code-block:: xml

  <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>

.. seealso::
 

 :ref:`About Numerical Input` (reference)

 :ref:`Manage Numerical Input Problem` (how-to)

 :ref:`About Single Select` (concept)

 :ref:`Single Select` (how-to)


**Maintenance chart**

+--------------+-------------------------------+----------------+--------------------------------+
| Review Date  | Working Group Reviewer        |   Release      |Test situation                  |
+--------------+-------------------------------+----------------+--------------------------------+
|              |                               |                |                                |
+--------------+-------------------------------+----------------+--------------------------------+