
Calculated and Calculated Simple
Calculated questions require a student to calculate a numerical answer given specific values for variables in a formula. For example, a question might ask a student to compute the area of a triangle given two numbers for the base and height of the triangle. The numbers for the variables are generated randomly per attempt, so that different students taking the quiz will be given different sets of numbers. The Calculated Simple question type is a simpler version of the Calculated question type. See Calculated Questions and Calculated Simple Questions. 
Calculated Multichoice
These questions require a student to choose the correct numeric answer from a selection of answers. The answers are computed based on a randomly generated set of values for variables in a formula. For example, a question might ask the student to compute the area of a triangle given two randomly generated values for the base and height of a triangle, and then provide a set of possible numerical answers for the student to choose from. See Calculated Multichoice Questions. 
Embedded Answers (Cloze)
These very flexible questions consist of a passage of text (in Moodle format) that has various answers embedded within it, including multiple choice, short answers and numerical answers. See Embedded Answer (Cloze) Questions. 
Essay
In response to a question (the text for which may include an image), the respondent writes an answer in essay format. These must be scored manually by an instructor. See Essay Questions. 
Matching
The respondent must "match" the correct answers with each question. A list of subquestions is provided, along with a list of answers. See Matching Questions. 
Multiple Choice
In response to a question (the text for which may include an image), the respondent chooses from multiple answers. There are two types of multiple choice questions  single answer (where there is only one correct answer) and multiple answer (where the student can pick all answers that apply). See Multiple Choice Questions. 
Numerical
From the student perspective, a numerical question looks just like a shortanswer question in that they enter their answer into a short edit box. The difference is that the answer has to be numerical and answers are allowed to have an accepted error range. This allows a continuous range of answers within a particular tolerance of the correct answer. See Numerical Questions. 
Short Answer
In response to a question (the text for which may include an image), the respondent enters a word or phrase. There may be several possible correct answers, with different grades for various options. Answers may or may not be sensitive to case. See Short Answer Questions. 
True/False
In response to a question (the text for which may include an image), the student selects either True or False. See True/False Questions. 
Description
Is not a question type, but a way to display additional text (including images) within the quiz. For example, this can be used to provide information needed by a group of questions.