Lesson 3

Add, Subtract, and Multiply with Fraction Strips

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Task

Refer students to the Multiplication Strategies Menu for Larger Numbers in the Student Guide Reference section.

    1. 1673
    2. 11,187
    3. 4780
    4. 2397
  2. Answers will vary. Possible response for Question 1A:
    240 × 7 = 200 × 7 + 40 × 7 = 1400 + 280 = 1680
  3. Possible response for Question 1D:
    800 × 3 = 2400
    2400 – 3 = 2397

H. Multiplication

  1. Solve the following using paper and pencil or mental math.
    1. 239 × 7 =
    2. 3729 × 3 =
    3. 2390 × 2 =
    4. 799 × 3 =
  2. Explain your estimation strategy for Question 1A.
  3. Explain a way to solve one of the problems in Question 1 using mental math.