Grades 1 and 2 | Math | Elementary School | Units of Time - Comparing and Sequencing Intervals of Time

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Math: Elementary School: 1st and 2nd Grade Quiz - Units of Time - Comparing and Sequencing Intervals of Time (Questions)

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Understanding units of time well includes an ability to compare them and to understand how some intervals of time are longer than others. Comparing intervals also requires a firm understanding of the number of minutes in an hour (or half an hour) and the number of hours in a day.

Try this quiz to see how well you do with units of time.

How many minutes are there in one hour?

[ ]	1
[ ]	30
[ ]	50
[ ]	60

How many hours are there in a day?

[ ]	24
[ ]	12
[ ]	10
[ ]	30

How many minutes are there in half an hour?

[ ]	60
[ ]	30
[ ]	15
[ ]	10

Which is the longest unit of time:

[ ]	3 hours
[ ]	3 minutes
[ ]	3 seconds
[ ]	30 minutes

Which is the shortest unit of time?

[ ]	5 hours
[ ]	5 minutes
[ ]	5 seconds
[ ]	5 days

One and a half hours is the same as...

[ ]	30 minutes
[ ]	90 minutes
[ ]	60 minutes
[ ]	120 minutes

Put these times in order, from shortest to longest:
15 minutes, 5 minutes, 15 hours, 15 seconds

[ ]	15 seconds, 5 minutes, 15 minutes, 15 hours
[ ]	15 minutes, 15 hours, 5 minutes, 15 seconds
[ ]	15 hours, 15 minutes, 5 minutes, 15 seconds
[ ]	5 minutes, 15 minutes, 15 hours, 15 seconds

Put these times in order, from longest to shortest:
30 minutes, 3 days, 30 hours, 30 seconds

[ ]	30 seconds, 30 minutes, 30 hours, 3 days
[ ]	30 hours, 3 days, 30 minutes, 30 seconds
[ ]	3 days, 30 hours, 30 minutes, 30 seconds
[ ]	30 minutes, 30 hours, 3 days, 30 seconds

How long should it take to brush your teeth?

[ ]	3 seconds
[ ]	3 hours
[ ]	30 minutes
[ ]	3 minutes

10.

How long should it take to write a letter to a friend?

[ ]	30 hours
[ ]	30 minutes
[ ]	30 seconds
[ ]	3 days

Math: Elementary School: 1st and 2nd Grade Quiz - Units of Time - Comparing and Sequencing Intervals of Time (Answers)

How many minutes are there in one hour?

[ ]	1
[ ]	30
[ ]	50
[x]	60

It takes the minute hand 60 minutes to get all the way around the clock

How many hours are there in a day?

[x]	24
[ ]	12
[ ]	10
[ ]	30

From 12 midnight one day, to 12 midnight the next, it takes 24 hours in total

How many minutes are there in half an hour?

[ ]	60
[x]	30
[ ]	15
[ ]	10

Half of 60 is 30

Which is the longest unit of time:

[x]	3 hours
[ ]	3 minutes
[ ]	3 seconds
[ ]	30 minutes

3 hours is the same as 180 minutes

Which is the shortest unit of time?

[ ]	5 hours
[ ]	5 minutes
[x]	5 seconds
[ ]	5 days

5 seconds lasts about as long as it takes to count up to 5

One and a half hours is the same as...

[ ]	30 minutes
[x]	90 minutes
[ ]	60 minutes
[ ]	120 minutes

1 hour is 60 minutes and half an hour is 30 minutes. Added together, this makes 90 minutes

Put these times in order, from shortest to longest:
15 minutes, 5 minutes, 15 hours, 15 seconds

[x]	15 seconds, 5 minutes, 15 minutes, 15 hours
[ ]	15 minutes, 15 hours, 5 minutes, 15 seconds
[ ]	15 hours, 15 minutes, 5 minutes, 15 seconds
[ ]	5 minutes, 15 minutes, 15 hours, 15 seconds

15 seconds is a very short amount of time, 15 hours is more than half a full day!

Put these times in order, from longest to shortest:
30 minutes, 3 days, 30 hours, 30 seconds

[ ]	30 seconds, 30 minutes, 30 hours, 3 days
[ ]	30 hours, 3 days, 30 minutes, 30 seconds
[x]	3 days, 30 hours, 30 minutes, 30 seconds
[ ]	30 minutes, 30 hours, 3 days, 30 seconds

3 days is the same as 72 hours!

How long should it take to brush your teeth?

[ ]	3 seconds
[ ]	3 hours
[ ]	30 minutes
[x]	3 minutes

3 minutes is the amount of time the dentist usually recommends

10.

How long should it take to write a letter to a friend?

[ ]	30 hours
[x]	30 minutes
[ ]	30 seconds
[ ]	3 days

You could write a good letter in about half an hour