Lesson 3

Number Sentences

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

This DPP item provides practice with the fact families for the multiplication facts for the 3s.

Ask students what strategies they use to solve these problems.

  1. 15; 15 ÷ 3 = 5
  2. 21; 21 ÷ 7 = 3
  3. 27; 27 ÷ 9 = 3
  4. 6; 6 ÷ 3 = 2
  5. 18; 18 ÷ 6 = 3
  6. 12; 12 ÷ 4 = 3
  7. 30; 30 ÷ 3 = 10
  8. 24; 24 ÷ 3 = 8
  9. 9; 9 ÷ 3 = 3
  10. 3; 3 ÷ 1 = 3

Answers will vary for the division sentences.

I. Free Threes

Do these problems in your head. Write only the answers. Write a division number sentence in the same fact family for each one.

  1. 3 × 5 =
  2. 3 × 7 =
  3. 3 × 9 =
  4. 3 × 2 =
  5. 6 × 3 =
  6. 3 × 4 =
  7. 10 × 3 =
  8. 3 × 8 =
  9. 3 × 3 =
  10. 1 × 3 =