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  1. Study the way Professor Peabody represents the hoppers' moves.
    1. How does he show where the hopper lands after each hop?
    2. What does he write above the hops? What does that tell you?
  2. Professor Peabody saw a base-ten hopper make the moves shown below. He did not finish his drawing.
    1. Where did the hopper start?
    2. Where did the hopper land when it finished hopping?
    3. What should Professor Peabody write under the number line?
  3. Observe the base-ten hopper's moves below.
    1. Where did the hopper land when it finished hopping?
    2. How far is it from where the hopper started to where it landed? How do you know?
  4. Study the number lines below.
    1. How are they alike?
    2. How are they different?