• To help students successfully subtract with regrouping, utilize these graphic organizers to help demonstrate the expanded form strategy. Begin with 2 digit numbers and work up to four digit numbers.

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  • Use these cards and a generic gameboard to practice subtraction patterns for multiples of ten. This will help to reinforce the expanded form strategy for subtraction.

  • Turning point for Subtracting
  • Challenge Activity: Have your students use the digit cards 1-9 to make true addition problems of 3-digits plus 3 digits. You will be amazed at how many combinations there are. My class has found at least 60 so far this year!! Here are some examples:

  • Sum It Up Game

  • Sum 15 Game