Lesson 5

Mass vs. Number

Est. Class Sessions: 3–4

Daily Practice and Problems

Teacher Notes
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TIMS Bit

Use this DPP to practice using mental math strategies for the last six multiplication facts.

  1. 32
  2. 42
  3. 56
  4. 28
  5. 24
  6. 48
  1. Possible response: I broke apart 4 into 2 + 2, then I multiplied 2 × 7 = 14. I doubled the 14. 28.

Q. Multiplication: Last Six Facts

Do these problems in your head. Write only the answers.

  1. 8 × 4 =
  2. 6 × 7 =
  3. 8 × 7 =
  4. 4 × 7 =
  5. 6 × 4 =
  6. 8 × 6 =
  1. Explain your strategy for 4 × 7.