Need a READY TO GO, NO-PREP 2nd grade end of the year math review activity to keep your students engaged? This End of Year Math Crack the Code is perfect for just that! Simply print this 2nd grade end of year math review who dunnit activity and go. Students use the worksheets to solve the math mystery called The Case of the Mystery Guest. This who dunnit math crack the code is about a school hiring a special guest to help with the end of the year festivities. The students are hearing so many rumors and must know now! Students complete the 2nd grade end of year math review activities to find out who the mystery guest is.

End of Year Math Crack the Code includes: 

  • 6 pages of 2nd grade end of the year math review
  • Black & white versions of the who dunnit activities
  • Color versions of the who dunnit activities
  • Answer keys to easily check the math crack the code

Students will complete the following 2nd Grade End of Year Math Review activities: 

  • Telling Time to five minutes
  • Fraction of a set
  • Addition and Subtraction with regrouping / basic word problems
  • Counting Dollars and Coins
  • Shapes – Edges, Vertices, Faces

When solving this math mystery students must use their math skills to eliminate possible guests in order to complete this math crack the code and find out who the mystery guest is. This End of Year Math Crack the Code is perfect for independent work, group work, partners, sub tubs, math centers, early finishers or homework. The math mystery activities are intended to be review. Review the skills quickly before passing out the Math Crack the Code handouts. It typically takes anywhere from 45 minutes to an hour for students to complete this who dunnit activity. With minimal prep (you can print and staple the pages in ANY order!) and high engagement, you will love using this End of Year Math Crack the Code to round out the year in your classroom!

Looking for more End of the Year Activities? Be sure to check out these engaging resources!: 

5 reviews for End of Year Math Crack the Code | Who Dunnit 2nd Grade End of Year Math Review

  1. Chrissy Christian

    My students really enjoy these math mysteries for every holiday!
    -Kris P.

  2. Chrissy Christian

    This was so much fun for students to review their math skills!
    -Tina

  3. Chrissy Christian

    My students loved this resource! My class love anything mysteries. This was a great activity to end the school year.
    -Tori D.

  4. Chrissy Christian

    I wish I had these kinds of things when I was younger. They really enjoy it and seeing them work together is great.
    -Kelsey A

  5. Chrissy Christian

    My students loved this resource. It met the standards and kept them engaged!
    -Patricia M

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End of Year Math Crack the Code | Who Dunnit 2nd Grade End of Year Math Review

$3.00

Grades: 1st – 3rd, Mostly used with 2nd

Subjects: Math

Format: PDF

Total Pages: 24

Answer Key: Included

Teaching Duration: 90 minutes

Common Core Standards:

Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.
Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

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