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Home > CC1 > Chapter 9 > Lesson 9.2.3 > Problem 9-66


Wendy and Peter each made up a new “Guess My Decimal” game just for you. Use their clues to determine the number.

  1. Wendy gives you this clue: “My decimal is seven tenths greater than . What is my decimal?” Show your work.

    Seven tenths can also be written as . And can also be written as .

  2. Peter continues the game with the following clue: “My decimal is six hundredths less than five tenths.” Use pictures and/or words to show your thinking.

  • Start with five tenths. A 10 by 10 block of 100 where 5 columns out of 10 columns are shaded.

  • Take six hundredths away. Changes: 6 squares, in column 5, are no longer shaded.