Education Technology

Names for 100

Published on 06/09/2008

Activity Overview

Students will use the calculator to carry out operations of addition, subtraction, division, and multiplication on integers, fractions, and decimals to find mathematical expressions that equal 100.

Before the Activity

  • See the attached PDF file for detailed instructions for this activity
  • Print student activity sheet page 31 from the attached PDF file for your class
  • During the Activity

    Distribute the page to the class.

    Follow the activity procedures:

  • Express 6 in several different ways - using different situations, whole numbers, addition, multiplication, and division
  • Find different expressions that total to 100
  • Use a calculator to record as many expressions as possible that total to 100
  • Compare the expressions and separate them into categories
  • Find operations used
  • Select one category and write more expressions that fit that category
  • Describe a real-life situation for one category
  • After the Activity

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