Problem Analysis and Solution
####
Section 1: Copy and Complete the Following
We need to fill in the blanks with the correct values for each statement.
1.
a. There are ____ days in September.
- September has
30 days.
-
Answer: 30
2.
b. There are ____ minutes in 1 hour.
- There are
60 minutes in 1 hour.
-
Answer: 60
3.
c. There are ____ months in a year.
- There are
12 months in a year.
-
Answer: 12
4.
d. There are ____ seconds in 1 minute.
- There are
60 seconds in 1 minute.
-
Answer: 60
---
####
Section 2: Write the Missing Numbers
We need to convert the given time units into the required units.
1.
a. 3 minutes = ____ seconds
- 1 minute = 60 seconds
- 3 minutes = \( 3 \times 60 = 180 \) seconds
-
Answer: 180
2.
b. 5 hours 30 minutes = ____ minutes
- 1 hour = 60 minutes
- 5 hours = \( 5 \times 60 = 300 \) minutes
- Total minutes = \( 300 + 30 = 330 \) minutes
-
Answer: 330
3.
c. 7 weeks = ____ days
- 1 week = 7 days
- 7 weeks = \( 7 \times 7 = 49 \) days
-
Answer: 49
4.
d. ____ months = 3 years
- 1 year = 12 months
- 3 years = \( 3 \times 12 = 36 \) months
-
Answer: 36
5.
e. ____ hours = 2 days 6 hours
- 1 day = 24 hours
- 2 days = \( 2 \times 24 = 48 \) hours
- Total hours = \( 48 + 6 = 54 \) hours
-
Answer: 54
6.
f. ____ minutes = 7½ hours
- 1 hour = 60 minutes
- 7½ hours = \( 7.5 \times 60 = 450 \) minutes
-
Answer: 450
7.
g. 300 seconds = ____ minutes
- 1 minute = 60 seconds
- 300 seconds = \( \frac{300}{60} = 5 \) minutes
-
Answer: 5
---
####
Exercise 2.2
#####
Problem 1: Heidi's Visit
Heidi went to her friend's house. She arrived at
2:00 p.m. and left at
2:45 p.m. How long was Heidi at her friend's house?
-
Arrival Time: 2:00 p.m.
-
Departure Time: 2:45 p.m.
-
Duration:
- From 2:00 p.m. to 2:45 p.m. is
45 minutes.
-
Answer: 45 minutes
#####
Problem 2: Swimming Pool Open Hours
The swimming pool opens at
8:00 a.m. and closes at
6:00 p.m. How long is the pool open?
-
Opening Time: 8:00 a.m.
-
Closing Time: 6:00 p.m.
-
Duration:
- From 8:00 a.m. to 6:00 p.m. is
10 hours.
-
Answer: 10 hours
---
Final Answers:
1.
Section 1:
- a.
30
- b.
60
- c.
12
- d.
60
2.
Section 2:
- a.
180
- b.
330
- c.
49
- d.
36
- e.
54
- f.
450
- g.
5
3.
Exercise 2.2:
- Problem 1:
45 minutes
- Problem 2:
10 hours
---
Boxed Final Answers:
\[
\boxed{
\begin{aligned}
&\text{Section 1:} \\
&\text{a. 30, b. 60, c. 12, d. 60} \\
&\text{Section 2:} \\
&\text{a. 180, b. 330, c. 49, d. 36, e. 54, f. 450, g. 5} \\
&\text{Exercise 2.2:} \\
&\text{Problem 1: 45 minutes, Problem 2: 10 hours}
\end{aligned}
}
\]
Parent Tip: Review the logic above to help your child master the concept of time worksheet calendar.
