Lesson 5

Stack Up

Est. Class Sessions: 2

Daily Practice and Problems

Teacher Notes
X

TIMS Bit

Answers will vary. Examples are given here.

    1. 1500
    2. 50 × 30
    3. smaller
    1. 6000
    2. 600 × 10
    3. smaller
    1. 12,000
    2. 4000 × 3
    3. larger

U. Estimating Products

For Questions A–C:

  1. Estimate the answers.
  2. Tell what convenient numbers you used to make your estimate.
  3. Tell whether the actual product will be larger or smaller than your estimate.
    1. 49 × 28
    2. 598 × 9
    3. 4074 × 3