Education Technology

Number and Operations - 100 or Bust

Activity Overview

Students explore the operations of addition, subtraction, multiplication, and division of whole numbers and integers.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Print student activity sheet on page 4 from the attached PDF file for your class
  • During the Activity

    Distribute the page to the class.

    Follow the activity procedures:
    100 or Bust:

  • Use estimation, place-value materials, and the calculator to place seven randomly generated digits on a chart in either the ones or tens column to make a sum close to 100 as possible without going over 100
  • After the Activity

  • Review student results
  • As a class, discuss questions that appeared to be more challenging
  • Re-teach concepts as necessary