Lesson 4

Building with Triangles

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

Use this DPP item to provide practice with the multiplication facts for the 9s using multiples of 10 and 100.

  1. 18
  2. 180
  3. 1800
  4. 63
  5. 630
  6. 6300
  7. 36
  8. 360
  9. 3600
  1. Possible response. I know that 4 × 9 = 36, so 4 × 90 will be 10 times more, or 360.

K. Multiples of 10 and 100

  1. 2 × 9 =
  2. 2 × 90 =
  3. 2 × 900 =
  4. 9 × 7 =
  5. 9 × 70 =
  6. 9 × 700 =
  7. 4 × 9 =
  8. 4 × 90 =
  9. 4 × 900 =
  1. Show or tell how you solved Question H.