Engage NY Eureka Math 3rd Grade Module 2 Lesson 1 Answer Key

### Eureka Math Grade 3 Module 2 Lesson 1 Problem Set Answer Key

Question 1.

Use a stopwatch. How long does it take you to snap your fingers 10 times?

It takes ___________ to snap 10 times.

Answer:

It takes 4 seconds to snap 10 times

Question 2.

Use a stopwatch. How long does it take to write every whole number from 0 to 25?

It takes ___________________ to write every whole number from 0 to 25.

Answer:

It takes 30 seconds to write every whole number from 0 to 25

Question 3.

Use a stopwatch. How long does it take you to name 10 animals? Record them below.

It takes ___________________________ to name 10 animals.

Answer:

It takes 35 seconds to name 10 animals.

Question 4.

Use a stopwatch. How long does it take you to write 7 × 8 = 56 fifteen times? Record the time below.

It takes _______________________ to write 7 × 8 = 56 fifteen times.

Answer:

It takes 50 seconds to write 7 × 8 = 56 fifteen times

Question 5.

Work with your group. Use a stopwatch to measure the time for each of the following activities.

Answer:

Question 6.

100 meter relay: Use a stopwatch to measure and record your team’s times.

Name |
Time |

Seema | 18 seconds |

Joy | 15 seconds |

Tom | 20 seconds |

Total time: 53 seconds |

The table to the right shows how much time it takes each of the 5 students to do 15 jumping jacks.

a. Who finished 15 jumping jacks the fastest?

Maya | 16 seconds |

Riley | 15 seconds |

Jake | 14 seconds |

Nicholas | 15 seconds |

Adeline | 17 seconds |

Answer:

Jake finished 15 jumping jacks the fastest in 14 seconds.

b. Who finished their jumping jacks in the exact same amount of time?

Answer:

Riley and Nicholas finished their jumping jacks in the same amount of time that is 15 seconds.

c. How many seconds faster did Jake finish than Adeline?

Answer:

Andeline finished in 17 seconds and Jake in 15 seconds.So, Jake finished 2 seconds faster than Adeline.

### Eureka Math Grade 3 Module 2 Lesson 1 Homework Answer Key

Question 1.

The table to the right shows how much time it takes each of the 5 students to run 100 meters.

a. Who is the fastest runner?

Samantha | 19 seconds |

Melanie | 22 seconds |

Chester | 26 seconds |

Dominique | 18 seconds |

Louie | 24 seconds |

Answer:

Dominique is the fastest runner(18 seconds of time).

b. Who is the slowest runner?

Answer:

Chester is the slowest runner(26 seconds of time).

c. How many seconds faster did Samantha run than Louie?

Answer:

Samantha ran in 19 seconds and Louie ran in 24 seconds.So, 24-19=5

Therefore, Samantha ran 5 seconds faster than Louie.

Question 2.

List activities at home that take about the following amounts of time to complete. If you do not have a stopwatch, you can use the strategy of counting by 1 Mississippi, 2 Mississippi, 3 Mississippi, ….

Time Activities at home

Time |
Activities at home |

30 seconds | Example: Tying shoelaces |

45 seconds | Wearing socks |

60 seconds | Packing tiffin |

Question 3.

Match the analog clock with the correct digital clock.

Answer: