Comparing and Ordering Time - Worksheet | Math 1st Grade - Free Printable

Let's go through the "Comparing and Ordering Time Worksheet 1" step by step, solving each part with explanations.

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Question 1: Compare the events. Circle the one you think will take the longest amount of time.

We are to compare two activities in each pair and choose the one that takes longer.

#### a) Travel to the moon vs. Run a marathon
- Travel to the moon: This involves space travel, which takes several days (e.g., Apollo missions took about 76 hours one way).
- Run a marathon: Typically takes around 4–5 hours for most runners.

✔ Answer: Travel to the moon – much longer than running a marathon.

#### b) Fly to America vs. Sail to America
- Fly to America: A flight across the Atlantic takes ~8–10 hours.
- Sail to America: Sailing takes weeks (e.g., 2–4 weeks depending on route and conditions).

✔ Answer: Sail to America – sailing is significantly slower than flying.

#### c) Build a house vs. Build a Lego tower
- Build a house: Takes months (often 6–12 months or more).
- Build a Lego tower: Takes minutes or hours at most.

✔ Answer: Build a house – vastly longer than building a Lego tower.

#### d) Read a party invitation vs. Read a book
- Read a party invitation: Takes seconds or a minute.
- Read a book: Can take hours or days depending on length.

✔ Answer: Read a book – clearly longer than reading an invitation.

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Question 2: Circle the longest amount of time.

We compare numbers in the same units.

#### a) 45 minutes, 80 minutes, 32 minutes
- 80 > 45 > 32
✔ Answer: 80 minutes

#### b) 63 seconds, 36 seconds, 70 seconds
- 70 > 63 > 36
✔ Answer: 70 seconds

#### c) 30 seconds, 1 hour, 43 minutes
Convert all to seconds:
- 30 seconds = 30 sec
- 1 hour = 60 minutes = 3600 seconds
- 43 minutes = 43 × 60 = 2580 seconds

So: 3600 > 2580 > 30
✔ Answer: 1 hour

#### d) 70 seconds, 17 seconds, 1 minute
Convert 1 minute → 60 seconds
Now: 70 > 60 > 17
✔ Answer: 70 seconds

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Question 3: Circle the shortest amount of time.

Again, compare and find the smallest value.

#### a) 18 hours, 36 hours, 48 hours
- 18 < 36 < 48
✔ Answer: 18 hours

#### b) 51 minutes, 15 minutes, 55 minutes
- 15 < 51 < 55
✔ Answer: 15 minutes

#### c) 3 days, 3 hours, 3 seconds
Convert all to seconds:
- 3 days = 3 × 24 × 60 × 60 = 259,200 seconds
- 3 hours = 3 × 60 × 60 = 10,800 seconds
- 3 seconds = 3 seconds

Clearly: 3 < 10,800 < 259,200
✔ Answer: 3 seconds

#### d) 6 days, 2 months, 1 week
Convert to days:
- 6 days = 6 days
- 1 week = 7 days
- 2 months ≈ 60 days (approx. 30 days per month)

So: 6 < 7 < 60
✔ Answer: 6 days

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✔ Final Answers:

#### Question 1:
a) Travel to the moon
b) Sail to America
c) Build a house
d) Read a book

#### Question 2: Longest time
a) 80 minutes
b) 70 seconds
c) 1 hour
d) 70 seconds

#### Question 3: Shortest time
a) 18 hours
b) 15 minutes
c) 3 seconds
d) 6 days

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📝 Summary:

This worksheet helps students practice comparing durations using real-life examples and numerical values. The key is understanding units of time and converting them when necessary (e.g., hours to minutes, days to seconds) to make fair comparisons.

Let me know if you'd like this turned into a printable answer sheet!