Lesson 2

Explore Big Numbers with Base-Ten Hoppers

Est. Class Sessions: 2–3

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

DPP item E can be used to provide practice with the multiplication and related division facts for 2s and 3s.

  1. 8; 4; 2 × 4 = 8;
    8 ÷ 4 = 2
  2. 27; 9; 3 × 9 = 27;
    27 ÷ 9 = 3
  3. 15; 5; 5 × 3 = 15;
    15 ÷ 5 = 3
  4. 16; 2; 8 × 2 = 16;
    16 ÷ 2 = 8
  5. 20; 2; 2 × 10 = 20;
    20 ÷ 2 = 10
  6. 12; 4; 3 × 4 = 12;
    12 ÷ 4 = 3
  7. 14; 7; 2 × 7 = 14;
    14 ÷ 7 = 2
  8. 18; 6; 6 × 3 = 18;
    18 ÷ 6 = 3

E. Fact Families for × and ÷

Solve each pair of related facts. Then name two other facts in the same fact family.

  1. 4 × 2 = ? and 8 ÷ 2 = ?
  2. 9 × 3 = ? and 27 ÷ 3 = ?
  3. 3 × 5 = ? and 15 ÷ 3 = ?
  4. 2 × 8 = ? and 16 ÷ 8 = ?
  5. 10 × 2 = ? and 20 ÷ 10 = ?
  6. 4 × 3 = ? and 12 ÷ 3 = ?
  7. 7 × 2 = ? and 14 ÷ 2 = ?
  8. 3 × 6 = ? and 18 ÷ 3 = ?