Grade 3 Place Value Complete Unit | 12 Lessons | 3.NBT

A complete 14-day Grade 3 unit covering all of CCSS 3.NBT — place value to the thousands, rounding to the nearest 10 and 100, multi-digit addition and subtraction within 1000 (with regrouping and borrowing), and multiplying one-digit numbers by multiples of 10.

This is the foundation that every Grade 3+ math depends on. Built by a classroom teacher who knows that place value confusion is at the root of most computation errors, and that students need to MASTER three-digit operations before moving on. From “What does the 3 in 348 mean?” to multiplying 30 × 40, every concept is built with clear scaffolding, real-world context, and the kind of step-by-step thinking Grade 3 students need.

Twelve fully-scripted lessons walk students through place value, rounding, add/subtract with regrouping, multi-step word problems, and multiplying by multiples of 10 — culminating in a “Lemonade Stand” performance task where Mia runs her lemonade stand and students apply EVERY 3.NBT skill: rounding cups to estimate sales, adding and subtracting daily totals, packing cups into crates with multiplication, and solving multi-step word problems.

What’s included:

• 12 lesson decks (120 slides) — fully scripted with speaker notes
• 12 worksheets (8 practice + 1 word problem + 2 bonus per lesson) + answer keys with misconception notes
• 12 exit tickets (3 questions, ~5 minutes) + answer keys with reteach suggestions
• Pre/Post Assessment — 10 questions mapped to every 3.NBT sub-standard
• Summative Performance Task — “Lemonade Stand” (5 parts, 16 points)
• Problem-Solving Rubric — 4 criteria x 4 levels
• 4 Anchor Charts — wall posters for place value, rounding rules, add & subtract, and multiply by 10s
• 14-Day Pacing Guide
• Parent Letter (editable)

Lesson sequence:

• Lesson 1. Place Value to the Thousands (3.NBT.A.1)
• Lesson 2. Rounding to the Nearest 10 (3.NBT.A.1)
• Lesson 3. Rounding to the Nearest 100 (3.NBT.A.1)
• Lesson 4. Rounding to Estimate (3.NBT.A.1)
• Lesson 5. Multi-Digit Addition Within 1000 (3.NBT.A.2)
• Lesson 6. Multi-Digit Addition With Regrouping (3.NBT.A.2)
• Lesson 7. Multi-Digit Subtraction Within 1000 (3.NBT.A.2)
• Lesson 8. Multi-Digit Subtraction With Regrouping (3.NBT.A.2)
• Lesson 9. Multi-Step Word Problems (3.NBT.A.2)
• Lesson 10. Multiplying by Multiples of 10 (3.NBT.A.3)
• Lesson 11. Multiplying Two Multiples of 10 (3.NBT.A.3)
• Lesson 12. Place Value Synthesis (3.NBT all)

Standards: 3.NBT.A.1 — Use place value understanding to round whole numbers to the nearest 10 or 100 3.NBT.A.2 — Fluently add and subtract within 1000 using strategies and algorithms based on place value 3.NBT.A.3 — Multiply one-digit whole numbers by multiples of 10 in the range 10–90 (e.g., 9 × 80, 5 × 60) using strategies based on place value and properties of operations