Numerical question developer docs

Database tables]

quiz_numerical]

The quiz_numerical table is an extension of the quiz_answers table, defining a tolerance value for each answer.

id

int(10) unsigned NOT NULL auto_increment,

question

int(10) unsigned NOT NULL default '0',

answer

int(10) unsigned NOT NULL default '0',

tolerance

varchar(255) NOT NULL default '0.0',

quiz_numerical_units]

The quiz_numerical_units table is used by the numerical questiontype and the calculated questionype. It extends the quiz_questions table, defining an arbitrary number of units that can be used in the responses.

id

int(10) unsigned NOT NULL auto_increment,

question

int(10) unsigned NOT NULL default '0',

multiplier

decimal(40,20) NOT NULL default '1.00000000000000000000',

unit

varchar(50) NOT NULL default ,

Response storage]

The numerical questiontype, which inherits the function print_question_formulation_and_controls() from the shortanswer questiontype, has only one response field, so its responses are handled by the default questiontype. The response is stored without any modifications in the answer field of the table quiz_states.

Question->options]

State->options]

See also]

Numerical formats, gives a proposal for implementing various numerical formats for numerical and calculated question type in Question Engine 2.1.

Source: docs.moodle.org/503/en/Numerical question developer docs — MoodleDocs (GPL) · Imported 2026-11-10.