Math Project-Based Learning: Multiply Decimals, Add Decimals | 5th Grade Math

This 5-day project-based math resource applies math concepts in a real-world scenario to teach students about decimal operations including adding decimals and multiplying decimals by a power of 10. In this 5-day unit, students will apply decimal concepts to create a plan for opening a school coffee shop. This decimal math project is engaging and authentic. Plus, it’s available as both a digital and print resource.

This project-based math resource covers concepts of time measurement and is aligned with the following 5th Grade Math Common Core State Standards:

CCSS.MATH.CONTENT.5.NBT.A.2

• Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.

CCSS.MATH.CONTENT.5.NBT.B.7

• Add, subtract, multiply, and divide decimals to hundredths, 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 and explain the reasoning used.

This resource is available in both Printable & Digital Google Slides versions.

What’s included in this resource:

• Background Knowledge: Using a KWL, students will build background knowledge around coffee shops, how they operate, and how they generate profit.
• Review Place Value: Using the included instructional pages, students will review place value.
• Adding Decimals: Using the included instructional pages, students will learn how to line the decimals up when adding two decimals together.
• Determining Profit & Choose Menu Items: Students will apply concepts of decimal addition to determine the profit of various items and decided on items to add to their menu.
• Multiplying Decimals by Powers of 10: Using the included instructional pages, students will learn how to multiply decimals by a power of ten by moving the decimal within the number.
• Reevaluate Menu: Students will determine whether they should increase or decrease the profit for items on their menu.
• Wrap Up: Students will write up their final coffee shop plan and explain their decisions.

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