Decimal Operations PBL | Restaurant Math 6th Grade | 6.NS.B.3

🍽️ RESTAURANT OWNER DECIMAL MATH PBL — 5-DAY GRADE 6 MATH UNIT

Make decimals meaningful with a 5-day Restaurant Owner Math PBL! Students step into the role of a restaurant owner and use all four decimal operations to manage receipts, expenses, recipe costs, bills, profits, and an investor pitch.

Instead of isolated decimal worksheets, this 37-page project connects addition, subtraction, multiplication, and division through one cohesive real-world restaurant storyline. Three levels of differentiated recipe cards provide appropriate challenge while students work toward the same mathematical goals.

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❌ Not another worksheet with disconnected decimal problems

❌ Not a surface-level menu-math activity

✅ A complete 5-day PBL unit with a connected restaurant scenario

✅ All four decimal operations practiced through authentic applications

✅ 3-tier differentiation so learners can work at an appropriate level

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📋 WHAT'S INSIDE — 37 PAGES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🔹 **DAY 1 — ADDITION & SUBTRACTION**

Students calculate daily receipts from four registers, total restaurant expenses such as rent, utilities, and supplies, and determine net profit.

🔹 **DAY 2 — MULTIPLICATION**

Students scale recipe ingredient costs for different serving sizes and calculate the cost of a dish for quantities such as 12, 25, and 40 servings.

🔹 **DAY 3 — DIVISION**

Students split dinner bills, calculate cost per unit for bulk versus retail ingredients, and determine fair tip amounts.

🔹 **DAY 4 — MIXED OPERATIONS**

Students complete a weekly P&L report using revenue, COGS at 32% food cost, operating expenses, and tax, applying all four decimal operations.

🔹 **DAY 5 — RESTAURANT INVESTOR PITCH**

Students use all four operations to calculate annual COGS, gross profit, net profit, ROI, and payback period before presenting their restaurant as an investment opportunity.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🍽️ 3-TIER DIFFERENTIATED RECIPE CARDS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

🌱 **Modified** — Simpler decimal values, structured hints, and additional scaffolding

⭐ **On-Level** — Grade 6-standard complexity with multi-step problems

🚀 **Challenge** — Larger numbers, extended reasoning, and additional decision-making

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📊 4-CRITERION ANALYTIC RUBRIC ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Assess the completed project using four criteria:

• Decimal Accuracy — place value and computation

• Operation Fluency — selecting and executing the appropriate operation

• Real-World Application — contextual reasoning and interpretation

• Presentation — organized, labeled, professional mathematical work

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✅ **Complete Answer Key** — Step-by-step worked solutions using standard algorithms

✅ **Decimal Operation Anchor Charts** — Addition, subtraction, multiplication, and division

✅ **Printable Place-Value Chart** — Student reference for decimal place value

✅ **Teacher Pacing Guide** — Daily learning targets, time estimates, and facilitation tips

✅ **CCSS Alignment Chart** — 6.NS.B.3 breakdown

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**CCSS.MATH.CONTENT.6.NS.B.3** — Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 📅 5-DAY PROJECT FLOW ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

**Day 1:** Add and subtract restaurant receipts and expenses.

**Day 2:** Multiply ingredient costs to scale recipes.

**Day 3:** Divide bills, ingredient quantities, and tip amounts.

**Day 4:** Apply mixed decimal operations to a weekly P&L.

**Day 5:** Calculate restaurant investment figures and deliver the Investor Pitch.

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎓 PERFECT FOR ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

• Grade 6 Math decimal operations

• CCSS 6.NS.B.3 instruction

• Real-world math and PBL

• Financial and business connections

• Differentiated classroom instruction

• Math intervention and enrichment

• Homeschool math

• Summer school or review

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• Grade: 6th • Subject: Math — Decimals • Format: PDF — print-and-go • Length: 37 pages • Standard: CCSS 6.NS.B.3

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