# Subtraction Review Math Mystery Activity - Subtracting within 100

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Common Core Standards
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1. This complete math mystery bundle contains all of my math mysteries for Grade 2 up to date! Make math fun and exciting with these engaging activities that will motivate even some of your most reluctant learners.MULTIPLE USESUse as a classroom review activity, include in your math centers, leave for
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Product Description

In this Subtraction Math Mystery Activity – Case of The Dream Snatcher (GRADE 2) – students will be practicing subtraction skills (numbers within 1,000) to solve this nightmare of a mystery! No Prep required, this fun and engaging math activity will motivate your students during math time.

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The Dream Snatcher is stealing sweet dreams and using them to make horrible nightmares! The people of Mathhattan are counting on a brilliant math detective to discover where the Dream Snatcher is hiding so that Tabitha the Witch can stop her and the nightmares!

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Optional VIDEO HOOK available to use to introduce students to this

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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.

- Editable hideouts list included: This enables you to change the location names and alter the mystery outcome. Two alternative pre-made lists also included for a quick swap out.

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Math Skills Required to Unlock Clues

There are five clues to crack to solve the mystery:

Clue 1: Subtraction within 20

Clue 2: Subtracting 1-digit numbers from 2-digit numbers (no regrouping)

Clue 3: Subtraction Word Problems (within 20 only)

Clue 4: Subtraction Input/Output Tables (within 100),

Clue 5: Subtraction within 100 (Regrouping required in the second and third row of questions. Mix of 1-digit from 2-digit numbers, and 2-digit from 2-digit numbers.

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

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Multiple Uses

- Suitable for independent, pairs, or group work.

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."

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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.

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You may also be interested in:

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The Case of the Dream Snatcher is available in other grade levels. Check out the editions below to see the difficulty of math skills involved in each. Same clue pages are interchangeable with the other grade levels so that you can differentiate this mystery activity.

2nd Grade Edition - Case of the Dream Snatcher

3rd Grade Edition - Case of the Dream Snatcher

4th Grade Edition - Case of the Dream Snatcher

5th Grade Edition - Case of the Dream Snatcher

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

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Bundle and Save!

COMPLETE Math Mystery Bundle for GRADE 2

HOLIDAY Math Mystery Bundle {GRADE 2}

SEASONS Math Mystery Bundle Pack (GRADE 2)

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Not sure what a math mystery is? CLICK HERE to watch a video about Math Mysteries or read this blog post: What is a Math Mystery?

Read Blog Post: FIVE Easy Ways to use Math Mysteries in your Classroom.

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

Check out this blog post to save paper:

How to Create Reusable Math Mystery Files to Save Paper

Browse the range of 2nd Grade Math Mysteries HERE.

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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:

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Thank you!

Mrs. J.

Total Pages
17 pages
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