## 1. About: Math Questions

Formula question types are most commonly used in math and science courses.

They allow you to use "curly braces" to ensure that each student receives a unique question. Also, you can deduct points when a student answers with the incorrect number of decimal points, unit of measurement, or scientific notation.

**Note: **To create complex formulas, you can use D2L's built-in *Graphical Equation editor*** **when building your question.

## 2. Create: Arithmetic Questions

These questions include formulas.

You can specify the number of decimal points and units required, and set a level of "tolerance" for what counts as an acceptable answer.

**Note:** If you want students to show their calculations and/or explain their work, we recommend using *Written Response (WR) *question types.

- Select
**Quizzes**from the course navbar*.* - Click on the
**Question Library**tab. - Click on the name of any
*Section*folder to open it. - Click the
**New**button. - Select
**Arithmetic Question (2+2**) from the*menu.* - Enter the number of
**Points**this question will be worth. - Enter the problem into the
**Question Text**field. Enclose all variables with curly braces if you want to generate random numbers.**Note:**The Graphical Equation editor can be especially helpful if the question contains a complicated formula. If you are working on a device with a small screen, you may have to click the**ellipses**for the**Graphical Equation menu**to appear. - If this question has an image, click the
**Insert Image**button to upload it from your computer. Use the*Alternative Text*field to provide information about the image. - Check
**Allow attachments to support answers**if you want students to upload images, documents, spreadsheets and other files showing their work. - Enter the solution's formula, setting variables inside curly braces.
- Use the
**Answer Precision**field to define the number of decimal places the answer may contain; check**Enforce Precision**if you want to require this number of decimal places in the correct answer.**Note:**If you enforce precision, we suggest specifying the number of decimal places a correct answer should contain in your question or in the quiz instructions. - To accept near-accurate, estimated, and/or rounded answers, enter a
*Tolerance*level:**Units**allow you to specify how far numerically an answer can deviate and still be considered correct (Ex. setting a tolerance of .5 units on a correct answer of 100 will instruct D2L to accept any answer between 99.5-100.5).**Percent**allows you to use a percentage to determine how far off an answer can be (Ex. Setting a tolerance of 1 on a correct answer of 50 will instruct D2L to accept any answer between 59.4-50.6).

- Use this option if the correct answer should include a unit of measurement (mm, cm, grams, inches, etc.):
- Enter the unit of measurement in the
**Units**field. - If you want to deduct points for incorrect units, use the
**Worth**field to tell D2L what percentage of the question's points to assign to the unit. - If case matters, select
**Case Sensitive**, under*Evaluation Options.***Note:**The student response must be an*exact*match to the units you enter, unless you select the Regular Expression option and use Regular Expressions in the*Units*field. For an introduction to Regular Expressions, watch this D2L video.

- Enter the unit of measurement in the
- Add or remove
**Variables**, as needed, to match the number of variables in the formula.- Add a variable by clicking the
**Add Variable**link. - Remove a variable by clicking the
**trashcan**icon.

- Add a variable by clicking the
- Assign values to your variables using the following fields:
**Name:**The name should*exactly*match the corresponding variable in your formula.**Min/Max:**Assign a range from which D2L can randomly assign a value to that variable. If you do not want D2L to randomly assign a value, then set the same number in both the*Min*and*Max*fields.**Decimal Places:**Use this field if you want to specify a number of decimal places for the variable.**Step:**This field instructs D2L to use intervals when drawing random numbers (Ex. if you set**Min**at 10 and*Max*at 100 and a*Step*of 5, D2L will randomly pull a number between 10-100 using intervals of 5).

- Click the
**Preview button**to see how the question will look to students. - Click the
**Save**button to save your question, or*Save and Close*to save and return to the*Question**Library*.

## 3. Create: Significant Figures Questions

These questions include formulas that use significant figures.

It is possible to deduct points when a student uses the incorrect number of significant figures in an answer.

- Select
**Quizzes**from the course navbar*.* - Click on the
**Question Library**tab. - Click on the name of any
*Section*folder to open it. - Click the
**New**button. - Select
**Significant Figures (x10)**from the*menu.* - Enter the number of
**Points**this question will be worth. - Enter the problem into the
**Question Text**field. Enclose all variables with curly braces if you want to generate random numbers.**Note:**The Graphical Equation editor can be especially helpful if the question contains a complicated formula. If you are working on a device with a small screen, you may have to click the**ellipses**for the**Graphical Equation menu**to appear. - If this question has an image, click the
**Insert Image**button to upload it from your computer. Use the*Alternative Text*field to provide information about the image. - Check
**Allow attachments to support answers**if you want students to upload images, documents, spreadsheets, and other files showing their work. - Enter the solution's formula, setting variables inside curly braces.
- Use the
**Significant Figures**drop-down menu to define the number of significant figures the correct answer should contain. - If you want to give partial credit to a student who provides the correct answer but uses the incorrect number of significant figures, use the
**Worth**drop-down menu to tell D2L what percentage of the question's points to deduct.**Note:**If you require a specific number of significant figures in the answer, we suggest explaining that in your question or in the quiz instructions. - To accept near-accurate, estimated, and/or rounded answers, enter a
*Tolerance*level:- The default is to allow an answer that is + or - 0.5 from the least significant figure.
**Units**allow you to specify how far numerically an answer can deviate and still be considered correct.**Percent**allows you to use a percentage to determine how far off an answer can be.

- Use this option if the correct answer should include a unit of measurement (mm, cm, grams, inches, etc.):
- Enter the unit of measurement in the
**Units**field. - If you want to deduct points for incorrect units, use the
**Worth**field to tell D2L what percentage of the question's points to assign to the unit. - If case matters, select
**Case Sensitive**, under*Evaluation Options.***Note:**The student response must be an*exact*match to the units you enter, unless you select the Regular Expression option and use Regular Expressions in the*Units*field.

- Enter the unit of measurement in the
- Add or remove
**Variables**, as needed, to match the number of variables in the formula.- Add a variable by clicking the
**Add Variable**link. - Remove a variable by clicking the
**trashcan**icon.

- Add a variable by clicking the
- Assign values to your variables using the following fields:
**Name:**The name should*exactly*match the corresponding variable in your formula.**Min/Max:**Assign a range from which D2L can randomly assign a value to that variable. If you do not want D2L to randomly assign a value, then set the same number in both the*Min*and*Max*fields.**Step:**This field instructs D2L at which intervals it should generate the coefficient and power.

- Click the
**Preview button**to see how the question will look to students. - Click the
**Save**button to save your question, or*Save and Close*to save and return to the*Question**Library*.