Celebrate the 100th day of school with this meaningful math game! Day 100 Math Activity – Practice Adding and Subtracting 100 with 4-Digit Numbers gives students focused, standards-aligned practice with place value and multi-digit computation as they add and subtract 100 within 4-digit numbers. Perfect for grades 3–5, this no-prep printable reinforces number sense and helps build fluency while tying learning to a fun classroom milestone.

What’s Included:

• 18 cards for adding 100 to 4-digit numbers
• 24 cards for subtracting 100 from 4-digit numbers
• 6 brain break cards
• related game board

Why This Resource Works:

• Standards-Aligned Practice: Supports CCSS 4.NBT.B.4 and foundational place value skills through targeted repetition.
• Perfect for Day 100 Celebrations: Tie math skill reinforcement into your 100th day festivities while keeping students learning.
• Low Prep, High Engagement: Print and go - ideal for classwork, homework, math centers, or early finishers.

Skills & Learning Targets:

• Add 100 to 4-digit numbers with an understanding of place value
• Subtract 100 from 4-digit numbers using base-10 reasoning
• Build fluency with multi-digit operations

Classroom Uses:

• Math Warm-Ups: Use as a bell-ringer on the 100th day or during your place value unit
• Centers/Stations: Rotate through independent practice or partner work
• Homework Reinforcement: Assign for extra practice after introducing the concept

Mark your 100th day with math that matters! This Day 100 game blends celebration with targeted skill building, helping kids grow their place value confidence.

Here are some things teachers like you had to say about this resource:

⭐️⭐️⭐️⭐️⭐️ Arielle P. said, "My students loved this. It was engaging and supported the lesson we were working on at the time very well. I would highly recommend!”

⭐️⭐️⭐️⭐️⭐️ Laura H. said, “A great resource - very easy to implement! Practical and useful!” 

⭐️⭐️⭐️⭐️⭐️ Farrah M. said, “My children love using this helps them be more flexible in their thinking. Thank you.”

⭐️⭐️⭐️⭐️⭐️ Eva N. said, “This has helped my students with their mental math skills. Thank you!”

Be sure to download the preview file for a better view of what's in this resource. Thanks!

For other Math resources, please see:

• Math resources

For other Math resources to promote fact fluency, see:

• Math Fact Fluency

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Copyright ©Sally of Elementary Matters. elementarymatters@gmail.com

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