Lesson 4

Mass vs. Volume: Proportions and Density

Est. Class Sessions: 4–5

Daily Practice and Problems

Teacher Notes
X

TIMS Task

  1. <
  2. =
  3. >
  4. <
  5. =
  6. >
  7. Possible response: First I solved 572 − 102 × 5 = 572 − 100 × 5. I multiplied 100 × 5 = 500 and then subtracted 572 − 100 = 72. Then I solved 82 + 9 = 64 + 9 = 73. 72 < 73

T. True Number Sentence

Use <, >, or = to make each number sentence true.

  1. 6 × 103 100 × 70
  2. 8 × 32 × 4 25 × 9
  3. 52 × 4 5 × 42
  4. 572 − 102 × 5 82 + 9
  5. 93 × 0 + 7 × 3 5 × 22 + 1
  6. 10,000 10 × 102 + 1000
  7. Show or tell how you solved Question D.