🧮 3rd Grade · Math3.OA.C.7Unit 3: Properties & multiplication facts

Facts of 7, 8 and 9

Google Classroom

🎯 Objective: Students learn the hardest facts with patterns (9s finger trick, 8 = double 4).

Lesson outline

  1. Warm-up: the 9s finger trick for 9 × 4 (bend the 4th finger: 3 tens and 6 ones = 36).
  2. Find the 9s pattern on the chart: tens digit goes up, ones digit goes down, digits add to 9.
  3. Teach 8s as “double, double, double” (8 × 6 = 6 → 12 → 24 → 48) and 7s as 5s + 2s (7 × 6 = 30 + 12).
  4. Exit: 8 × 7, 9 × 6, 7 × 7 with the strategy you used.

Lesson 4 of 7 in this unit. In the Lesson Planner this lesson takes 1–3 class periods depending on your timetable: day 1 introduce & model, then practice, small-group reteach and a quick check.

📐 Standard

3.OA.C.7

Common Core State Standards for Mathematics, Grade 3 — typical US scope & sequence

🏁 Unit goals

  • Use commutative, associative and distributive properties to multiply
  • Fluently multiply and divide within 100

✅ Check for understanding

End with the exit ticket in the outline. Sort answers into got it / almost / not yet and start the next lesson with a 5-minute reteach for the “not yets”.

Practice & resources on Thinkabara

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More lessons in “Properties & multiplication facts”

  1. Commutative property
  2. Facts of 3, 4 and 6
  3. Distributive property
  4. Facts of 7, 8 and 9
  5. Associative property
  6. 0 and 1 rules
  7. Fact fluency check

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