1 / 10

2.2

2.2. Estimating Products by Rounding. Review. Decompose the factors to find the products 31 x 10 310 x 2 23 x 40 32 x 30. Objective. SWBAT estimate multi-digit products by: Rounding factors to a basic factor U sing place value patterns. Vocabulary. Factor Estimate Product

chidi
Download Presentation

2.2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 2.2 Estimating Products by Rounding

  2. Review • Decompose the factors to find the products • 31 x 10 • 310 x 2 • 23 x 40 • 32 x 30

  3. Objective • SWBAT estimate multi-digit products by: • Rounding factors to a basic factor • Using place value patterns

  4. Vocabulary • Factor • Estimate • Product • Rounding

  5. Problem A • Kevin practices guitar 1 hour a day for 2 years. Edgar practices the guitar2 hours a day more than Kevin. How many more minutes does Edgar practice the guitar than Kevin over the course of 2 years?

  6. Problem 1 • How many students do we have in class? • Do all the classes have exactly 26 students?

  7. Problems 2-4 • 456 x 42 • 4,560 x 42 • 4,560 x 420

  8. Problems 5-7 • 1,320 x 88 • 13,205 x 880 • 3,120 x 880 • 31,200 x 880

  9. Problem Set 2.2 • DO NOT WRITE ON THE PAPER!!! • Complete problem set 2.2 by copying down the problems and solving them. • Once you are done, compare your answers with the person next to you. • You have 15 minutes to complete these problems. • After 15 minutes is up, we share our answers.

  10. Exit Ticket • Round the factors and estimate the products. • A. 656 x 106 • B. 3,108 x 7,942 • C. 425 x 9,311 • D. 8,633 x 57,008

More Related