# Using Interactive Calculators in E-Learning #430

Financial Calculators in E-Learning #430: Challenge | Recap

Using variables to capture and display a learner’s name is one of the most common ways to practice working with text variables. When you’re learning number variables, there’s no better way to work with basic operations than to build a simple calculator.

With Storyline variables, you can easily build simple or complex equations right into your project. And that’s what this week’s challenge is all about!

## Calculator Example

Check out David Charney’s calculator, which lets learners perform math and calculations right in your project.

## Square Root Calculator

Check out three ways to calculate square roots in Storyline in this dynamic example by Alphonso Hendricks.

## Simple Calculator

Go old school with a classic example by Dave Mozealous. It’s the first fully-functional calculator created in Storyline, and shows you that the sky’s the limit with variables!

## Resources

- Storyline 360: Working with Variables
- Storyline 360: Adding Variable References
- Storyline: What "Object Loses Focus" Means

### E-Learning Challenges

- Use Learner's Name in E-Learning Course #222: Challenge | Recap
- Using True/False Variables in E-Learning #271: Challenge | Recap
- Using Variables to Compare Learner's Answers #292: Challenge | Recap
- Random Number Variables in E-Learning #278: Challenge | Recap

### On-Demand Training

## Challenge of the Week

This week, your challenge is to build a simple calculator that can be used in e-learning.

**New to variables**? Try starting with one of the free calculator templates below. Depending on your comfort level, you can redesign one of the calculator templates or use it as a guide for creating your example.

**Comfortable working with variables**? Try adding multiple variables, sliders, and interactive elements to create a more advanced calculator.

## Share Your E-Learning Work

**Comments**: Use the comments section below to link your published example and blog post.**Forums**: Start a new thread and share a link to your published example.**Personal blog**: If you have a blog, please consider writing about your challenges. We'll link to your posts so your great work gets even more exposure.**Social media**: If you share your demos on Twitter or LinkedIn, try using #ELHChallenge so your tweeps can follow your e-learning coolness.

## Last Week’s Challenge:

Before you budget time for this week’s challenge, check out the alt text examples your fellow community members shared over the past week:

Using Alt Text in E-Learning **RECAP** #429: Challenge | Recap

## New to the E-Learning Challenges?

The weekly e-learning challenges are ongoing opportunities to learn, share, and build your e-learning portfolios. You can jump into any or all of the previous challengesanytime you want. I’ll update the recap posts to include your demos.

Learn more about the challenges in this Q&A post and why and how to participate in this helpful article.

## Next Week’s Challenge

**Next week's challenge**(9/8/23): Bullet Point Makeovers or Making Bullet Points More Engaging.

Got an idea for a challenge? Are you interested in doing a webinar showcasing how you made one or more challenge demos? Or do you have some comments for your humble challenge host? Use this anonymous form to share your feedback: https://bit.ly/ElearningChallengeForm.

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