Digital Halloween Math Activity Distance Learning CSI Digital Math Mystery Game

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The Teacher-Author has indicated that this resource can be used for device-based learning.

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  1. Grab all of my CSI Digital Math Mysteries and Digital Math Quest Games in this bundle! It will be a growing bundle since I have more math games in the making and plan to add those new math games to this set when ready.These Digital math games are a different format to my traditional printable and Go
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Halloween CSI Digital Math Mystery GAME. Your students can play the Case of The Halloween Heist in a digital game format. This resource is designed to be played on any device with an Internet connection (please read the technical tips section and try the free clue below to see if it works for you).

Mystery meets escape room with this style of game. Your students will need to discover passwords at the end of each clue in order to access the next clue. Your Teacher copy will contain all links and passwords.


Implementation Suggestion: Turn it into a competition to see who can solve the mystery first in your classroom OR set a timer with a limit that everyone must aim to beat to solve the case (or single clue if you prefer to break it up into smaller chunks).


TRY CLUE 1 from LEVEL 1 FREE to see if it works on your device.

>>CLICK HERE<<to access CLUE 1 from the LEVEL 1 version

The Password is spooky124

Didn't work? Ensure that cookies are enabled and you have a steady Internet connection. Clearing your browsing history/cache helps too. See further down the page for more troubleshooting tips.



There are THREE LEVELS of the game to choose to play! The Mystery outcome is different at the end of each level, and the clues are mostly different too. So you can choose to play all levels and the culprit will be different in each.


  • Clue 1: Addition with no-regrouping
  • Clue 2: Multiplication Facts (10 Times Tables and 2 Times Tables only)
  • Clue 3: Convert Expanded Form to Standard Form - Triple-digit Numbers
  • Clue 4: Read Clocks and select the matching digital time (O'Clock and Half-Past only)
  • Clue 5: Subtraction with no-regrouping (Double-Digit Numbers
  • Bonus ending round - Mental Math (Mix of addition and subtraction Questions)


  • Clue 1: Addition with regrouping (triple-digit numbers)
  • Clue 2: Multiplication Facts (Mix of any times tables Facts 1-12)
  • Clue 3: Rounding Numbers to the nearest ten or hundred (with whole numbers up to thousands)
  • Clue 4: Read Clocks and select the matching digital time (5-Minute Intervals)
  • Clue 5: Divide by 2s, 3s, 4s, 5s, or 10s Facts
  • Bonus ending round - Mental Math Mix of Times Tables and Division Facts


  • Clue 1: Adding Fractions with LIKE denominators - Reducing/simplifying answers required
  • Clue 2: Multiplying Powers of Ten
  • Clue 3: Rounding Decimals
  • Clue 4: Elapsed Time
  • Clue 5: Division Facts (A Mix of Facts from 1-12)
  • Bonus ending round - Mental Math Mix of Times Tables and Division Facts (Harder problems than Level 2)


What's the same from the paper math mystery?

  • The video hook intro
  • Correct answering of math questions to unlock clues
  • Eliminating suspects in clues 1-4
  • Mystery solution is different

What's different from the paper math mystery?

  • No printing or photocopying required
  • The math questions are different
  • Lots of graphics
  • The answers are presented in multiple choices for students to search and find answers.
  • Clicking/tapping on the correct answer unlocks the letter and places it into the boxes for you instead of manual input.
  • Cannot clue jump, completion of each clue unlocks access to the next clue.
  • After clue 5, your student will be required to select the culprit!
  • A Bonus math round will begin after selecting the culprit.
  • A short video clip at the end of the game.
  • The mystery solution and clues are not the same as the paper copy
  • Cannot clue swap. Unlike my paper 'worksheet style' mysteries, the clues are different and the culprit is different at the end of each level.

What you will need:

  • A stable Internet connection
  • The ‘digital keys’ provided in this download. There is a 'Teacher Copy' provided with all passwords in the PDF file. The 'Student Copy' is provided in a separate PDF document for easy sharing. The key links are provided in this student document, however, students must complete the previous clue to discover the password to unlock the next clue.
  • Computer access – this can be used on any device with an internet connection and browser e.g. PCs, Macs, IWB, and tablet devices.
  • Optional: print the tracking and recording page provided in this download. However, this is easily substituted with a workbook or plain piece of paper if you prefer to skip printing or photocopying this page.
  • To share the game is by sharing either the links or the pdf files provided in the download. You may need to do this by uploading to a classroom shared drive or by email. However, I've now also upgraded this resource to include QR codes as another way to share the links.
  • New: QR Codes added for each clue as an optional way to share the links.
  • New: Google Slides added to contain all of the game links to enable you to assign the game via Google Classroom.

Implementation suggestions

There are many ways to use this resource, some include:

  • Complete as a whole class on your Interactive Whiteboard. Students take it in turns to answer the questions.
  • Assign to your students to complete independently or in pairs on a device. This could be something they do as an early finisher task, during your math block, or for homework.

Sharing with Students

I'm still fine-tuning this and keen to take on any constructive feedback when possible. At this stage there are a few ways you may choose to share the game with your students:

  • Upload the Student Copy PDF file to a classroom shared drive, cloud or Dropbox where all students can access the PDF file.
  • Email the PDF file to your students to obtain a copy
  • Use the QR codes provided for students to scan. These can be printed or shown on the IWB for students to scan from.
  • Do as a class on the IWB with your access to the links only.
  • If all of the above fails, you can send an email to me and we can try to resolve the issue.

Clue Access

After completing a clue, your students will need to write down the password and close the browser window. Then, they must go back to the 'student pdf' file (or QR codes) to access the link for the next clue.  If you take a look at the student pdf file, there are buttons saying 'click here for clue 1' 'click here for clue 2' 'click here for clue 3' and so on.  If using the QR codes, there are QR codes for each clue.

Math Level Access

After downloading the product, open the ZIP folder. Inside there are three folders, each labeled with a 'level.' Open the folder of the level you wish your students to work on and use the files with links provided in that folder.


  • To PAUSE the game it will need to be kept open in the browser. Closing the game will require starting again from the top the clue it was closed on.
  • I have tested this game many times, but a glitch or two may have been missed. Please let me know if you come across any problems and I will fix. Also please contact me with any other technical difficulties. My email is
  • To prevent technical issues, I recommend clearing your browsing history and ensuring that cookies are enabled.


TRY CLUE 1 from LEVEL 1 FREE to see if it works on your device.

>>CLICK HERE<<to access CLUE 1 from the LEVEL 1 version

The Password is spooky124


Encountered technical errors? Try the following first:

- Clear your cache and browsing history

- Ensure Cookies are enabled

- Is your Internet connection steady?

- Try a different Internet browser such as Google Chrome

- For Chromebook users, please check your settings/filters to give permission to allow the links. See below for more advice.

Common Chromebook troubleshooting tip: You can allow or block permissions for a specific site. The site will use its settings instead of the default settings. You can also clear data for a site.

  1. On your computer, open Chrome .
  2. Go to a website.
  3. To the left of the web address, click the icon you see: Lock , Info , or Dangerous
  4. Click Site settings.
  5. Change a permission setting. Your changes will automatically save.

If none of the above work, please contact me on

As with all technology, issues may sometimes arise that are beyond my control. However, I will do my best to work with you and aim to resolve any problems should you experience any.


LICENSING TERMS: This purchase includes a license for one teacher only for personal use in their classroom. Licenses are non-transferable, meaning they can not be passed from one teacher to another. No part of this resource is to be shared with colleagues or used by an entire grade level, school, or district without purchasing the proper number of licenses. Please contact me for a quote at if interested in purchasing multiple licenses.

COPYRIGHT TERMS: This resource may not be uploaded to the internet in any form, including classroom/personal websites or network drives, unless the site is password protected and can only be accessed by students.

Print & Solve PAPER Editions Available of this Math Mystery Story in the following grade levels:

Other CSI Digital Math Mysteries available:

The Case of the Super Bad Superhero

The Case of the Thanksgiving Thief

The Case of the Cursed Classrooms

The Case of the Zombie Elves

Raiders of the Lost Egg Math Quest

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