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Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
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Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
Christmas Math Mystery - 3rd Grade Christmas Activity -  Selfish Elf Math Game
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What others say

"I use these puzzles all year long as review! This one particularly during a busy/tough time of year. I love to edit the suspect list to add my students' names in! "
star
Kate M.
"My students absolutely love these math mysteries and are alway asking to do more. I love the low prep and the fun way to engage my student in critical math skills."
star
Kari G.

Description

Engage your students with a Christmas Math Mystery, the 'Case of the Selfish Elf' (3rd Grade Edition). This activity will add an exciting twist to your math sessions. Easy prep! Just Print & Solve! Or go paperless with the new Google Slides option provided within your download.

Distance Learning Update: I've added a Word Document within the folder that contains a Google Slides link to share this resource with your students via Google Classroom or Drive. Parts of the pages are editable so that your students can complete without having to print the pages. Please note, you will need to make a copy of the Google Slides to your drive before you can edit.

----------------------------------------------------------------------------------------------

There is an optional Video Hook available to introduce this activity to your students in a fun way

>> CLICK HERE TO VIEW BONUS VIDEO HOOK <<

Includes a Bonus ending video clip to wrap up the case after solving the mystery!

Students must use their math skills to eliminate suspects so they can find out who is the Selfish Elf?

--------------------------------------------------------------------------------------------

Preparation

- No Prep required! Print the student pages, staple or place

in a folder, and your students are set to go.

- Have the video hook ready for viewing at the start of the

lesson on an IWB, iPad or computer monitor screen.

-----------------------------------------------------------------------------------------------

Math Skills Required to Unlock Clues

There are five clues to crack to solve the mystery:

Clue 1: Multiplying by 6s and 9s

Clue 2: Addition with 2-digit and 3-digit numbers (with regrouping)

Clue 3: Multiplying by 11s and 12s

Clue 4: Division relative to Multiplication

Clue 5: Subtraction with 2-digit numbers (with regrouping)

Students must use critical thinking skills to figure out what the clue is telling them to eliminate from the list of elf suspects.

----------------------------------------------------------------------------------------------

Multiple Uses

- Suitable for independent, pairs, or group work.

- Use as part of your math centers, add to your sub tubs, make it part of your early finisher tasks, give for homework, or make it part of your classroom practice/review sessions.

I recommend pacing this activity by giving students one clue at a time. Once the whole class has completed a clue, then move on to the next clue either within the same lesson or the next math session. New math content presented? Make a lesson out of it by modeling the math before diving into the clue. I like to say, "we must learn something new before attempting the next clue."

-----------------------------------------------------------------------------------------------

How long will this activity take?

Time to complete will vary anywhere between 30mins - 2 hours or more! It mainly depends on how familiar your students are with the math mystery format, as well as how difficult they find math skills covered in the particular mystery. Please check the math skills outlined in the clues above to help determine suitability for your class.

-----------------------------------------------------------------------------------------------

Want different math skills?

The Case of the Selfish Elf is available in the other Grade editions listed below. Click to check out the math skills covered in each packet.

Christmas Math Mystery: Case of The Selfish Elf (GRADE 1)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 2)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 3)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 4)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 5)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 6)

Differentiation and Important Note about the other Grade Editions when the Mystery is the SAME Story Title:

The clues are the same in the other grades if the mystery story is the same. The math is what is different between the grade packs. I designed the mysteries this way to enable differentiating the task within your classroom (without your kids knowing that they might have an easier or harder version than their peers.) You can also 'clue swap' across grades (except for the Kindergarten & 1st grade version) as long as the clue number is the same if you find that you'd prefer the math skill for a particular clue from a different grade edition. For example, swap clue 3 from the 4th grade edition with clue 3 in the 5th grade edition and it will still work the same (just the math will be different). I've added an alternative suspect list to the pack to change the mystery outcome, including two pre-made lists for you to swap out if you want a different mystery solution.

There are many different mystery titles in my store available if you'd like more Math Mysteries with different clues and solutions.

----------------------------------------------------------------------------------------------

Add extra motivation with this Detective Rank Chart Download the Mystery Record & Rank Chart FREEBIE HERE

----------------------------------------------------------------------------------------------

You may also be interested in:

----------------------------------------------------------------------------------------------

Bundle and Save!

COMPLETE Math Mystery Bundle for GRADE 3

HOLIDAY Math Mysteries Bundle Pack GRADE 3

SKILLS Math Mystery Bundle (3rd Grade)

SEASONS Math Mystery Bundle Pack (GRADE 3)

----------------------------------------------------------------------------------------------------------------

Not sure what a math mystery is? CLICK HERE to watch a video about Math Mysteries

TRY A FULL FREE MATH MYSTERY HERE (GRADES 1 - 6 DIFFERENTIATED BUNDLE)


Browse the 3rd Grade Range:

>>Download the FREE 3rd Grade Checklist here:<<

>> CLICK HERE to follow my store <<

-------------------------------------------------------------------------------------------------

For more ideas, activities, and resources, follow my store (by clicking the little green star) to stay updated on new releases. We can also stay connected via:

Blog

Pinterest

Facebook

__________________________________________________________________

>> CLICK HERE to follow my store <<

__________________________________________________________________

Thank you!

Mrs. J.

© 2015

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

Christmas Math Mystery - 3rd Grade Christmas Activity - Selfish Elf Math Game

Mrs J's Resource Creations
41.6k Followers
$4.95

Highlights

Digital downloads
Grades icon
Grades
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Standards
Pages
16
Answer Key
Included

What others say

"I use these puzzles all year long as review! This one particularly during a busy/tough time of year. I love to edit the suspect list to add my students' names in! "
star
Kate M.
"My students absolutely love these math mysteries and are alway asking to do more. I love the low prep and the fun way to engage my student in critical math skills."
star
Kari G.

Save even more with bundles

CSI Math Mysteries for the holidays! 3rd Grade Edition. These fun math mystery activities will get your students excited about doing math review! Save time and money with this Math Mystery HOLIDAY bundle for Grade 3!Easy prep! Just Print &amp; Solve! Or go paperless with the new Google Slides option
Price $96.70Original Price $138.15Save $41.45
28
Math Mysteries COMPLETE 3rd Grade Collection! This complete Math Mystery bundle contains all of my math mysteries for Grade 3 up to date! Make math fun and exciting with these engaging activities that will motivate even some of your most reluctant learners.Easy prep! Just Print &amp; Solve! Or go pa
Price $235.43Original Price $336.35Save $100.92
72
Mrs. J's Math Mystery collection from 1st to 6th grade.Grab all of the math mysteries to engage and motivate your students and differentiate across grade levels! FAQ: Will I be adding more math mysteries to this bundle?A: Yes, I will add new 1st-6th Grade Math Mysteries to this bundle until it reach
Price $1046.48Original Price $1745.75Save $699.27
368

Description

Engage your students with a Christmas Math Mystery, the 'Case of the Selfish Elf' (3rd Grade Edition). This activity will add an exciting twist to your math sessions. Easy prep! Just Print & Solve! Or go paperless with the new Google Slides option provided within your download.

Distance Learning Update: I've added a Word Document within the folder that contains a Google Slides link to share this resource with your students via Google Classroom or Drive. Parts of the pages are editable so that your students can complete without having to print the pages. Please note, you will need to make a copy of the Google Slides to your drive before you can edit.

----------------------------------------------------------------------------------------------

There is an optional Video Hook available to introduce this activity to your students in a fun way

>> CLICK HERE TO VIEW BONUS VIDEO HOOK <<

Includes a Bonus ending video clip to wrap up the case after solving the mystery!

Students must use their math skills to eliminate suspects so they can find out who is the Selfish Elf?

--------------------------------------------------------------------------------------------

Preparation

- No Prep required! Print the student pages, staple or place

in a folder, and your students are set to go.

- Have the video hook ready for viewing at the start of the

lesson on an IWB, iPad or computer monitor screen.

-----------------------------------------------------------------------------------------------

Math Skills Required to Unlock Clues

There are five clues to crack to solve the mystery:

Clue 1: Multiplying by 6s and 9s

Clue 2: Addition with 2-digit and 3-digit numbers (with regrouping)

Clue 3: Multiplying by 11s and 12s

Clue 4: Division relative to Multiplication

Clue 5: Subtraction with 2-digit numbers (with regrouping)

Students must use critical thinking skills to figure out what the clue is telling them to eliminate from the list of elf suspects.

----------------------------------------------------------------------------------------------

Multiple Uses

- Suitable for independent, pairs, or group work.

- Use as part of your math centers, add to your sub tubs, make it part of your early finisher tasks, give for homework, or make it part of your classroom practice/review sessions.

I recommend pacing this activity by giving students one clue at a time. Once the whole class has completed a clue, then move on to the next clue either within the same lesson or the next math session. New math content presented? Make a lesson out of it by modeling the math before diving into the clue. I like to say, "we must learn something new before attempting the next clue."

-----------------------------------------------------------------------------------------------

How long will this activity take?

Time to complete will vary anywhere between 30mins - 2 hours or more! It mainly depends on how familiar your students are with the math mystery format, as well as how difficult they find math skills covered in the particular mystery. Please check the math skills outlined in the clues above to help determine suitability for your class.

-----------------------------------------------------------------------------------------------

Want different math skills?

The Case of the Selfish Elf is available in the other Grade editions listed below. Click to check out the math skills covered in each packet.

Christmas Math Mystery: Case of The Selfish Elf (GRADE 1)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 2)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 3)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 4)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 5)

Christmas Math Mystery: Case of The Selfish Elf (GRADE 6)

Differentiation and Important Note about the other Grade Editions when the Mystery is the SAME Story Title:

The clues are the same in the other grades if the mystery story is the same. The math is what is different between the grade packs. I designed the mysteries this way to enable differentiating the task within your classroom (without your kids knowing that they might have an easier or harder version than their peers.) You can also 'clue swap' across grades (except for the Kindergarten & 1st grade version) as long as the clue number is the same if you find that you'd prefer the math skill for a particular clue from a different grade edition. For example, swap clue 3 from the 4th grade edition with clue 3 in the 5th grade edition and it will still work the same (just the math will be different). I've added an alternative suspect list to the pack to change the mystery outcome, including two pre-made lists for you to swap out if you want a different mystery solution.

There are many different mystery titles in my store available if you'd like more Math Mysteries with different clues and solutions.

----------------------------------------------------------------------------------------------

Add extra motivation with this Detective Rank Chart Download the Mystery Record & Rank Chart FREEBIE HERE

----------------------------------------------------------------------------------------------

You may also be interested in:

----------------------------------------------------------------------------------------------

Bundle and Save!

COMPLETE Math Mystery Bundle for GRADE 3

HOLIDAY Math Mysteries Bundle Pack GRADE 3

SKILLS Math Mystery Bundle (3rd Grade)

SEASONS Math Mystery Bundle Pack (GRADE 3)

----------------------------------------------------------------------------------------------------------------

Not sure what a math mystery is? CLICK HERE to watch a video about Math Mysteries

TRY A FULL FREE MATH MYSTERY HERE (GRADES 1 - 6 DIFFERENTIATED BUNDLE)


Browse the 3rd Grade Range:

>>Download the FREE 3rd Grade Checklist here:<<

>> CLICK HERE to follow my store <<

-------------------------------------------------------------------------------------------------

For more ideas, activities, and resources, follow my store (by clicking the little green star) to stay updated on new releases. We can also stay connected via:

Blog

Pinterest

Facebook

__________________________________________________________________

>> CLICK HERE to follow my store <<

__________________________________________________________________

Thank you!

Mrs. J.

© 2015

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

Reviews

4.9
Rated 4.89 out of 5, based on 2338 reviews
2338
ratings
5
2,186
4
143
3
8
2
1
1
0
Mostly used with 3rd grade
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16
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799
243
55
15
9
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What customers are saying
Met expectations
100%
Is a great value
100%
Is standards-aligned
100%
All verified TPT purchases
Thank you!
Rated 5 out of 5
June 3, 2026
Met expectations
Great value
Standards-aligned
Thank you for a great resource...my kids loved it!
Kristina H.
1,413 reviews • California
Grades taught: 4th
Great Resource
Rated 5 out of 5
June 1, 2026
Loved doing this activity with my students! Great Resource!
Melissa G.
366 reviews • Nevada
Grades taught: 1st, 4th
So fun and engaging!
Rated 5 out of 5
May 31, 2026
Met expectations
Great value
Standards-aligned
My students loved doing this activity and found it challenging and engaging!
Paulina M.
100 reviews
Grades taught: PreK, K, 1st, 2nd, 3rd
Student populations: Mild to severe disabilities
Love These Puzzles
Rated 5 out of 5
May 31, 2026
Met expectations
Great value
Standards-aligned
I use these puzzles all year long as review! This one particularly during a busy/tough time of year. I love to edit the suspect list to add my students' names in!
Kate Marble
(TPT Seller)
201 reviews • Missouri
Grades taught: 4th
Student populations: Emerging bilinguals, Learning difficulties, Mild to severe disabilities
Fun Activity
Rated 5 out of 5
May 29, 2026
My students absolutely love these math mysteries and are alway asking to do more. I love the low prep and the fun way to engage my student in critical math skills.
RoxStar Learning
(TPT Seller)
218 reviews • Indiana
Grades taught: 9th, 10th, 11th, 12th
Student populations: Autism, Learning difficulties, Mild to severe disabilities
Awesome Resource
Rated 5 out of 5
May 27, 2026
Met expectations
Great value
Standards-aligned
Worked perfectly! This was a great resource for my 3rd graders.
Tracey G.
1,025 reviews • Connecticut
Grades taught: 3rd
thank you
Rated 5 out of 5
May 10, 2026
Thank you so much for this resource. Students had a blast solving it.
Jennifer S.
659 reviews • Florida
Grades taught: PreK, K, 1st, 2nd
Holiday Spiral Review
Rated 5 out of 5
May 8, 2026
Met expectations
Great value
Standards-aligned
I loved being able to use this with my class on the week before break. It was a great way to review the skills we have taught in a fun and engaging way!
Ashley P.
231 reviews
Grades taught: 2nd, 3rd
Student populations: Autism, Learning difficulties

Questions & Answers

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Standards

to see state-specific standards (only available in the US).
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Understand division as an unknown-factor problem. For example, find 32 ÷ 8 by finding the number that makes 32 when multiplied by 8.
Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.
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