Lesson 3

Modeling Division

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Task

Use this DPP item to review multiplication and division facts.

    1. 26
    2. 14
    3. 12
    4. 10
    5. 16
    6. 15
    7. 30
    8. 18
  2. Jacob multiplied 2 × 2 before he divided 28. Using the Order of Operations, multiplication and division are the same level, so should be completed in order, from left to right. 28 ÷ 2 = 14; 14 × 2 = 28; 28 + 10 = 38.

H. Order of Operations

Solve the following problems. Remember to use the order of operations.

    1. 6 × 3 + 4 × 2 =
    2. 12 + 24 ÷ 6 − 2 =
    3. 2 + 8 + 16 ÷ 8 =
    4. 6 + 2 × 8 ÷ 4 =
    5. 30 ÷ 10 × 2 + 10 =
    6. 17 − 7 × 2 + 12 =
    7. 25 − 15 + 10 × 2 =
    8. 30 × 3 ÷ 10 + 9 =
  2. Jacob solved 28 ÷ 2 × 2 + 10 and got 17 for his answer. Tell Jacob where he made his mistake. What is the correct answer?