Usually, we think about adding and subtracting decimals in math class as something straightforward and maybe a little dry.
But what if students could practice these skills in a way that’s fun, creative, and real-world?
This is why planning a party makes for an amazing 5th grade math project.
Whether you’re reading this in the fall, right before a break, or any time of year when you need a fresh way to engage students, this project is perfect for bringing math to life.
You can use it as a one-time projecyt, or spread it out over a few days to really dive into the math and budgeting skills involved.
If you’re short on time, you can use the one I made!
I’ve put together everything you need for this hands-on enrichment activity.
➡️ Click here to get more info on the “Plan a Sweet Treat Party” project.
Learn more about my teaching approach here.
The Benefits of Using a 5th Grade Math Project
I love projects – because they encourage students to develop skills across the grade level in an authentic way.
This project in particular is great – because the concept and visuals make it so fun!
Here’s a closer look at the core concepts they’ll be practicing through this activity:
Adding and Subtracting Decimals
Adding and subtracting decimals is at the heart of this project.
Students choose items from a dessert menu, total up their choices, and adjust based on their party budget.
This repetitive, real-world practice strengthens their decimal operation skills in a way that feels more natural than traditional worksheets, as they actively engage with the numbers in a meaningful way.
Budgeting Basics
In planning a party, students are introduced to the idea of budgeting.
They’ll work within a set budget, selecting items they can afford and seeing how each choice affects their remaining balance.
Budgeting helps students grasp the practical side of decimal addition and subtraction, showing them how math applies to everyday situations like shopping and event planning.
Mental Math and Estimation
While working with decimals, students will often estimate costs to see if an item fits within their budget before calculating exact totals.
This mental math component teaches them to round, make quick decisions, and improve their estimation skills, which are crucial for more advanced math.
They’re learning to look at numbers flexibly, understanding when exact calculations are needed and when an estimate will do.
Problem-Solving and Decision-Making
The project also requires students to make choices based on their budget and the number of items they want.
This encourages problem-solving as they weigh options and adjust selections.
For example, if they want a specific number of desserts for a large party, they may need to choose smaller items or stay within the limits of a lower-priced category.
Decision-making like this builds critical thinking skills and helps students learn how to manage resources effectively.
➡️ Click here to get more info on the “Plan a Sweet Treat Party” project.
Fun Ways to Incorporate Project Based Learning With Party Planning
The theme of this project naturally lends itself to fun ideas!
Here are some that you can try:
Create a “Classroom Sweet Treat Store”
Print the dessert menu on large paper or posters and place it around the room, transforming the classroom into a mini “store.”
This setup allows students to move around and “shop” for their treats, adding an interactive element that keeps their energy focused.
You could also set up smaller “stores” at different stations where students calculate costs for different party scenarios.
Set Up Small Group or Partner Shopping Trips
Pair students up or put them in small groups, allowing them to work together to plan their dessert party. In addition to practicing decimal math, students will develop teamwork and communication skills.
They’ll discuss their options, decide which items to purchase, and share responsibility for totaling costs—all while staying on budget.
Individual Choice with Differentiation
If you want students to work individually, provide different leveled worksheets where they can plan a party for a certain number of people or select a specified number of treats.
This is great for differentiation because you can adjust the difficulty based on the student’s comfort level with decimals.
For example, some students might be asked to calculate the cost for three items, while others might budget for a larger group.
➡️ Click here to get more info on the “Plan a Sweet Treat Party” project.
Ideas to Make Project Based Learning (PBL) More Doable
Outside of having the resources and knowing how to facilitate it, time management is always a challenge.
So in this section, I’m sharing practical tips to help you make this 5th grade math project happen!
- Weekly Review with Budget Challenges
In the weeks leading up to testing, dedicate one class period each week to a budget “challenge” using the project materials. For example, give students a set amount of “party money” and specific constraints on items they can buy. This variation keeps adding and subtracting decimals fresh and introduces real-time decision-making, which is valuable for keeping students focused without traditional drills. - Small Group Review Sessions
Divide the class into small groups and give each group a budget scenario to work through together. By discussing and solving each budget scenario collaboratively, students get extra practice adding and subtracting decimals, and you save time by reviewing multiple concepts in one activity. Each group’s solution can then be presented, letting the class discuss different budgeting approaches and verify calculations. - Personal Goal-Setting
Encourage students to set individual goals based on their comfort level with decimals. Some may aim to master adding items up to $10, while others might aim to complete more complex budgets or add larger quantities of items. Having personal goals helps each student focus on their growth areas, making the project feel like a fun way to meet personal milestones rather than just a test prep assignment. - Practice “Quick Check” Skills
Give students quick, timed exercises within the project, like adding up three or four items from the menu within a couple of minutes. This timed practice helps with mental math and confidence, preparing them for the pace of timed tests. By practicing in short bursts, students improve their accuracy with decimals without feeling overwhelmed by longer review sessions. - Reflective Math Journals
After each practice session, ask students to write a short reflection on what they learned about budgeting or adding and subtracting decimals. This reflection can be as simple as jotting down one area they feel confident in and one they’d like to improve. Reflection helps students internalize what they’ve practiced and lets you assess their understanding without extra test prep materials.
➡️ Click here to get more info on the “Plan a Sweet Treat Party” project.
More 5th Grade Resources for You
If you need more resources related to help you teach everything covered by the 5th grade standards, I have a shop full of things you’ll love!
Easy Science Experiments Bundle
These engaging science experiments use simple household items, making them easy to set up and prepare. Perfect for introducing science lab rules, reinforcing lab procedures, modeling the scientific method, or simply adding an element of hands-on fun to any day!
Each experiment includes step-by-step instructions and a recording sheet where students can document their observations.
➡️ Check out the preview to see exactly what’s inside!
This bundle includes 10 themed sets of activities for a total of 63 unique, hands-on science experiments that will keep students engaged all year long. Purchasing this bundle at the listed price gives you 15 extra experiments at no additional cost!
5th Grade Science Test Prep Flip Book
If you don’t have any 5th grade science curriculum, or if you’ve been piecemealing resources from a ton of diferent places – then you need this!
I designed this with you in mind – and everything covers the 5th grade science standards.
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