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Instructor Overview

Students solve decimal multiplication and division problems related to the basic fact 3 × 7 = 21.

Students match cards that represent word problems, visual models, and numerical solutions to problems that include the numbers 0.8 and 0.2 for all four operations.

Key Concepts

No new mathematics is introduced in this lesson. Students apply their knowledge about decimal operations.

Goals and Learning Objectives

  • Use reasoning and mental math to solve problems.
  • Solve word problems involving simple addition, subtraction, multiplication, and division with decimals.