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Check out Graham's Building Fact Fluency Toolkit for addition and subtraction.

standard: MCC5.MD.3,4,5

Download the Task

Act 1

Watch the video


  1. What do you notice? What do you wonder?
  2. How are the sugar cubes packed in the box?  (dimensions)
  3. What are some dimensions you know are not accurate?

Act 2

How many sugar cubes are in the box?

Act 3

How the sugar is packed

Click the link here to find more 3-Act Lessons