Quizzes are a powerful tool in any e-learning environment, as they test learners, reinforce retention, and provide valuable feedback. When your course involves quantitative subjects, such as mathematics, physics, engineering, or data science, the ability to include arithmetic or formula-based questions is essential. By default, LearnDash’s quiz builder is great for multiple choice, true/false, essays, etc., but it doesn’t natively support dynamic arithmetic questions (e.g., “What is x + y if x=7, y=12?”) where values can be randomized. That’s where the LearnDash Arithmetic Quiz add-on from Wooninjas comes in.
In this guide, you’ll learn:
- What the LearnDash Arithmetic Quiz add-on is and why you might need it
- How to install and configure it
- How to build arithmetic questions (addition, subtraction, multiplication, division, more advanced formulas)
- Tips, use cases, and best practices
What Is the LearnDash Arithmetic Quiz Add-on
The LearnDash Arithmetic Quiz add-on extends LearnDash by adding a new “Arithmetic” question type. With this type, instead of specifying a fixed correct answer, you define a formula in terms of variables (e.g., [x] + [y], or sin([a]) + log([b])), specify value ranges for those variables, and let the add-on generate randomized arithmetic questions for students.
Some highlights:
- Supports basic operations: addition, subtraction, multiplication, division
- Supports more complex formulas: nested expressions, trigonometric functions, decimal points, and many math functions (e.g., sin, log, sqrt, round, etc.)
- Variables can be randomized via min/max ranges.
- You can disable decimal values or set the number of decimal places.
- Arithmetic questions can co-exist with other question types in the same quiz.
This makes it ideal for quizzes where you want variation between quiz attempts and avoid mindless memorization of fixed numeric answers.
Step 1: Installation & Setup
- Install and activate LearnDash.
- Install and activate the LearnDash Arithmetic Quiz add-on.
- Once active, a new menu item (or menu section), such as “Arithmetic Quiz,” is added under your LearnDash settings.
- In the add-on settings, configure your license key to enable updates.
Step 2: Configuring Arithmetic Questions
Once installed:
- Go to LearnDash LMS > Questions > Add New.
- In the question editor, in the “Answer Type” (or a meta box on the side), select Arithmetic.
- Then scroll to the “Answer (required)” section where you define the formula, variables, etc.
- You’ll typically click “Add new answer” or “Add variable,” and enter something like:
• Question text: e.g. 5 + 2 =
• Formula: [x] + [y]
• Variable definitions: define x and y with their min and max values
Backend
Frontend
- If you set min = max = the same value, the variable is fixed (no randomization). If you give a range, the add-on picks a random value per attempt.
Examples of Basic Arithmetic
- Addition
| Operation | Question Text | Formula | Variable Setup |
| Addition | 5 + 2 = | [x] + [y] | x = 10 (min=10, max=10), y = 2 (min=2, max=2) |
Backend
Frontend
- Subtraction
| Operation | Question Text | Formula | Variable Setup |
| Subtraction | 20 – 10 = | [x] – [y] | x = 20, y = 10 |
Backend
Frontend
- Multiplication
| Operation | Question Text | Formula | Variable Setup |
| Multiplication | 2 × 2 = | [x] * [y] | x = 2, y = 2 |
Backend
Frontend
- Division
| Operation | Question Text | Formula | Variable Setup |
| Division | 14 ÷ 2 = | [x] / [y] | x = 14, y = 2 |
Backend
Frontend
If you want variation, you might define x in the range 1–10 and y in the range 1–5, so the student sees a different random instance each time.
Using More Advanced Math Functions
One of the strengths of this add-on is support for built-in math functions. You can write formulas like:
- sin([a])
| Operation | Question Text | Formula | Variable Setup |
| Sin | Sin 2= | sin([a]) | a =2 |
Backend
Frontend
- log([a])
| Operation | Question Text | Formula | Variable Setup |
| log | log 2= | log([a]) | a =2 |
Backend
Frontend
- sqrt([a])
| Operation | Question Text | Formula | Variable Setup |
| sqrt | sqrt 4= | sqrt([a]) | a =4 |
Backend
Frontend
- round([a])
| Operation | Question Text | Formula | Variable Setup |
| round | round 4.234= | round([a]) | a =4.234 |
Backend
Frontend
- ceil([a])
| Operation | Question Text | Formula | Variable Setup |
| ceil | ceil 4= | ceil([a]) | a =2 |
Backend
Frontend
- max([a],[b])
| Operation | Question Text | Formula | Variable Setup |
| max | max (4, 6)= | max([a],[b]) | a =4, b=6 |
- min([a],[b])
| Operation | Question Text | Formula | Variable Setup |
| min | min (4, 6)= | min([a],[b]) | a =4, b=6 |
- pow([a],[b])
| Operation | Question Text | Formula | Variable Setup |
| pow | pow 4,2= | pow([a],[b]) | a =4, b=2 |
- factors([a])
| Operation | Question Text | Formula | Variable Setup |
| factors | factor 20= | factors([a]) | a =20 |
- modulo([a],[b])
| Operation | Question Text | Formula | Variable Setup |
| modulo | modulo([10], [3]) | modulo([a],[b]) | a =10, b=3 |
- DigitSum([a])
| Operation | Question Text | Formula | Variable Setup |
| digitsum | digitSum([409])= | digitsum([a]) | a =409 |
- DigitalRoot([a])
| Operation | Question Text | Formula | Variable Setup |
| digitalRoot | digitalRoot([9876]) | digitalRoot([a]) | a =9876 |
- trunc([a])
| Operation | Question Text | Formula | Variable Setup |
| trunc | trunc([12.9]) | trunc([a]) | a =12.9 |
- expm1([a])
| Operation | Question Text | Formula | Variable Setup |
| expm1 | expm1([0]) | expm1([a]) | a =0 |
- hypot([a],[b]….)
| Operation | Question Text | Formula | Variable Setup |
| hypot | hypot([3], [4] | hypot([a],[b]) | a =3,b=4 |
- octdec( [a] )
| Operation | Question Text | Formula | Variable Setup |
| octdec | octdec([17]) | octdec( [a] ) | a =17 |
You can also combine operations,
- ([a] * [b]) + ([c] / [d])
| Operation | Question Text | Formula | Variable Setup |
| Numerical Expression | (17×10)+(5/2) | ([a] * [b]) + ([c] / [d]) | a =17,b=10,c=5,d=2 |
- pi( [a] )
| Operation | Question Text | Formula | Variable Setup |
| pi | pi([2]) | pi( [a] ) | a =2 |
Decimal / Floating Point Control
- You can disable decimals entirely by checking the “Disable Decimal Values for Answers” box.
- Or you can allow decimals and specify the number of decimal places in the meta box.
Step 3: Integrate Into Quizzes & Courses
Once you have created arithmetic questions on the LearnDash Arithmetic Quiz:
- You can include them alongside regular quiz question types (multiple choice, essays, etc.).
- Students attempting the quiz on the front end will see the question with the randomized values (if you used ranges).
- Their numeric input is evaluated against the formula logic you defined.
Note: The Arithmetic question type is not compatible with the LearnDash Course Builder quiz interface. That means you need to manage arithmetic-type questions outside the drag-and-drop interface.
Master the Math: Smart Tips for Building Dynamic LearnDash Arithmetic Quiz
Here are tips to get the most from Math LearnDash Arithmetic Quiz:
- Start simple
Begin with basic arithmetic questions before introducing complexity. Ensure your formulas and variable definitions are correct.
- Test thoroughly
Use multiple quiz attempts to verify that randomization works, formulas compute correctly, decimals are handled as intended, etc.
- Limit ranges sensibly
If the range of possible values is too broad, students may face extreme values or ambiguous expressions. Use ranges that keep answers in a reasonable, expected domain.
- Use variable constraints
If needed, constrain variables so division by zero or invalid math operations are avoided (e.g., setting the minimum of the divisor variable to ≥1).
- Provide instructions/hints.
When the question involves functions (e.g., sin or logarithms), include a hint or small description so students understand the context.
- Combine with other question types.
Don’t rely solely on arithmetic. Use multiple choice, fill-in, essays, etc., to test comprehension beyond mere computation.
- Watch decimal rounding/tolerance.
Students may input slightly off due to rounding errors. The add-on’s formula engine should account for exactness based on decimals, but be mindful when dealing with floating-point results.
- Use math functions thoughtfully.
While the add-on supports many functions, avoid making too complex expressions for novices. Keep a balance between challenge and clarity.
- Plan for grading/feedback
Consider giving feedback or showing correct formula steps after quiz completion, especially for complex arithmetic problems.
Where It Shines: Real-World Use Cases for LearnDash Arithmetic Quiz
- Math courses (algebra, calculus): dynamically generate problem sets so each student gets a unique version.
- Science/engineering courses: physics problems, unit conversions, formula manipulation.
- Data/statistics courses: random datasets, statistical formulas (mean, standard deviation, etc.).
- Drill/practice quizzes: arithmetic drills (addition/subtraction) with randomized numbers each time to build fluency.
- Adaptive assessment: vary difficulty by changing variable ranges based on student performance.
The Key Takeaway
Adding dynamic arithmetic quizzes to your LearnDash courses elevates your ability to teach quantitative subjects, enforce mastery, and prevent mindless memorization. With the LearnDash Arithmetic Quiz add-on, you can:
- Define formulas with variables
- Randomize values
- Use built-in math functions.
- Combine arithmetic questions with other types.
Start with simple problems, test thoroughly, and gradually increase complexity. Used wisely, this tool transforms your quizzes from static questions into interactive, adaptive math assessments.
