Description

Celebrate the holiday with this Chinese New Year Math Mystery 2nd grade Activity! ‘The Case of the Red Envelope Riddles’ is a high-engagement Lunar New Year math activity that turns a 2nd-grade review into an exciting, cultural case-solving mission.

It’s the perfect no-prep math activity! This resource is loaded with options, including an optional video hook and a NEW ending video (with voiceovers!) to wrap up the case!

Easy Prep for Print or Digital

This resource is designed to be low-prep for you and high-engagement for your students.

• Printable PDF Version: Just print the worksheets, staple, and go.
• Google Slides Digital Version: 100% paperless! Simply assign in Google Classroom. (Students must be in ‘edit mode’ to type).

Chinese New Year Math Mystery 2nd Grade Activity

To solve the riddles, students must unlock five clues by correctly solving:

• Clue 1: Read & Write Time (5 Minute Intervals)
• Clue 2: Adding Double-Digit and Single-Digit numbers with regrouping
• Clue 3: Comparing Numbers up to 1,000
• Clue 4: Subtracting Single-Digit from Double-Digit numbers with regrouping
• Clue 5: Place Value Models – Hundreds, Tens, and Ones

Flexible for Any 2nd Grade Classroom

Use this versatile Chinese New Year math activity for:

• A fun spiral review
• Math centers or stations
• Homework or enrichment
• Your “early finisher” tub
• A lifesaver for your sub-tub!

Pacing & Timing

This is a comprehensive review that can take anywhere from 30 minutes to 2+ hours, depending on your students’ skill level. We recommend pacing it by one clue at a time.

Common Questions for this 2nd Grade Math Review

Q: Is this just a Lunar New Year math activity for 2nd grade?
A: This mystery has a fun “Red Envelope Riddles” theme, making it the perfect holiday activity. However, it’s a powerful 2nd grade math review printable that you can use any time of year!

Q: What skills does this mystery cover?
A: This is a comprehensive review. Students will practice telling time to 5 minutes, addition and subtraction with regrouping, comparing numbers to 1,000, and place value.

Q: What exactly is a Math Mystery?
A: It’s our high-engagement, multimedia math activity! Students solve 5 clues to crack a case, all while watching fun video hooks. You can learn more about math mysteries here.

Q: How does differentiation work with these?
A: That’s our secret weapon! Many of our stories are available for other grades, so you can “clue swap.” We even have a blog post explaining how: learn how to differentiate here.

Other Grade Editions Available!

Love this ‘Red Envelope Riddles’ theme? This mystery is also available for other grade levels (great for differentiation)!

 

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A complete answer key and printable awards are included!

 Frequently Asked Questions & Extras 

• How long does a Math Mystery usually take to complete? Most of my mysteries are designed to take approximately 40–60 minutes. This can vary depending on whether students work individually or in pairs. Many teachers also love using them as a “Friday Fun” activity or breaking them up over two shorter sessions.
• Is there any prep involved? I know how busy you are, so I keep it “Print & Go.” There is no cutting, laminating, or complex setup required. Just print the clue pages and the opening story, and you are ready to start the investigation!

• Add extra motivation: Download the Mystery Record & Rank Chart FREEBIE HERE
• Looking for more 2nd-grade resources? Math Mystery Worksheets & Activity Sheets for Teachers

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