Lesson 3

Compose and Decompose Mixed Numbers

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Task

  1. 2
  2. 7
  3. 2
  4. 16
  1. Two possible responses:
    2 × 3 × 7 + 8 = 50;
    8 × 7 − 2 × 3 = 50

J. Operation Target

Romesh and Tanya are playing Operation Target using the digits 2, 3, 7, and 8. They use all four digits once in a number sentence to find target numbers. They can use any of the four operations (+, −, ×, ÷), parentheses, and exponents. Use the order of operations to find their target numbers.

  1. (3 × 2 + 8) ÷ 7 =
  2. 23 × 7 ÷ 8=
  3. (32 + 7) ÷ 8 =
  4. 82 ÷ (7 − 3) =
  1. Use Romesh and Tanya's rules to find the target number 50.