Update your preferences in order to use "Plain text area" as your preferred editor. In a question bank, import the file " MDL-67335 _example.xml" in "Moodle XML format" file format. It contains a calculated multichoice question created before this change. Go to the question bank. Find the question "Example question calculatedmulti". Next to the question, click "Edit" and then, from the menu, choose "Edit question". In the "Answers" section, verify that the format for "Choice 1" and "Choice 2" is "Plain text format". Click "Save changes". Click "Next page" on the following "Choose wildcards dataset properties" page. Click "Add" on "Add item 1 new set(s) of wild card(s) values" on the following "Edit the wildcards datasets" page. In the section "Set 1", set "Wild card {x}" to "5". Click "Save Changes". Being back in the question bank, find the question "Example question calculatedmulti". Next to the question, click "Edit" and then, from the menu, choose "Preview". Verify that the first answer is "5²". (That's verbatim, i. e. with the HTML tags spelled out.) Click "Close preview". Being back in the question bank, find the question "Example question calculatedmulti". Next to the question, click "Edit" and then, from the menu, choose "Edit question". In the "Answers" section, for "Choice 1", set the format to "HTML format" without changing the text. For "Choice 2", set the text to "{x}³" without changing the format. Click "Save changes". Click "Next page" on the following "Choose wildcards dataset properties" page. Click "Save changes" on the following "Edit the wildcards datasets" page. Being back in the question bank, find the question "Example question calculatedmulti". Next to the question, click "Edit" and then, from the menu, choose "Preview". Verify that the first answer is "5²", i.e. the number "5" with a superscript "2". Verify that the second answer is "5³". (That's verbatim, i. e. with the HTML tags spelled out.)