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LESSON 7 Decimal Hoppers
Math hoppers are very special creatures that live on number lines. Professor Peabody studies how they behave. In earlier lessons, he studied base-ten hoppers and big base-ten hoppers. He just found a new kind called the decimal hopper. He makes drawings of the ways the decimal hoppers move.
- Study the decimal hopper's moves on the three number lines below.
- What distances does the decimal hopper move in one hop?
- In what directions does the decimal hopper move?
- Study the way Professor Peabody represents the hopper's moves.
- How does he show where the hopper lands after each hop?
- What does he write above the hops? What does that tell you?
- Which decimal hopper in Question 1 does each of these number sentences show?
- 0.3 + 2 − 0.4 = 1.9
- 3.2 = 0.5 + 0.5 + 2 + 0.2
- 1.5 − 1.3 = 0.2