Lesson 5 Compare Decimals

    • Let’s compare decimals.

Warm-up True or False: Decimals

Decide if each statement is true or false. Be prepared to explain your reasoning.

Activity 1 Farther and Faster

Photograph of child catching frisbee.

  1. Diego and Jada were competing to see who could throw the frisbee further. Diego threw the frisbee 5.10 meters. Jada threw the frisbee 5.01 meters.

    Who threw the frisbee further? Be prepared to explain your thinking.

  2. Tyler and Han were competing to see who could swim the length of the pool faster. Tyler swam the length of the pool in 35.15 seconds. Han swam the length of the pool in 35.30 seconds. Who swam the length of the pool faster? Be prepared to explain your thinking.

Activity 2 Farthest Frisbee Flight

Recall that Diego threw the frisbee 5.1 meters and Jada threw the frisbee 5.01 meters. For each question, find 2 possible answers.

  1. Han threw the frisbee farther than Diego. How far might Han have thrown the frisbee?

  2. Tyler threw the frisbee farther than Diego but less than 6 meters. How far might Tyler have thrown the frisbee?

  3. Mai threw the frisbee a shorter distance than Jada. How far might Mai have thrown the frisbee?

  4. Priya threw the frisbee a shorter distance than Jada, but more than 5 meters. How far might Priya have thrown the frisbee?

Practice Problem

Problem 1

Noah threw the frisbee 4.89 yards.

  1. Noah threw the frisbee farther than Lin. How far could Lin have thrown the frisbee?

  2. Andre threw the frisbee farther than Noah but less than 4.9 yards. How far could Andre have thrown the frisbee? Explain your reasoning.