Lesson 2

Using Maps

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Challenge

Assign this DPP item as a Problem of the Week.

  1. 31
  2. 45
  3. 13
  4. Possible response: I multiplied 3 × 9 = 27 and 4 × 9 = 36. I knew my answer was an odd number between 27 and 36. The possible answers are 29, 31, 33, and 35. Since the sum of the two digits must equal 4, the answer is 31 because 3 + 1 = 4.

D. What Number Am I?

  1. I am more than 3 × 9 and less than 4 × 9. I am an odd number. The sum of my digits is 4. What number am I?
  2. The sum of my digits is nine. If you skip count by 5s, you hit me. I am less than 50. What number am I?
  3. I am an odd number. I am more than half of 22 and less than half of 30. What number am I?
  4. Explain your strategy for solving Question 1.