The image provides an introduction to the concept of adding and subtracting time, which is a fundamental skill in mathematics. Below, I will explain how to add time step by step, using the guidelines provided in the image.
Steps to Add Time:
1.
Add the number of hours.
2.
Add the number of minutes.
3.
If the total minutes are 60 or more, subtract 60 from the minutes and add 1 to the hours.
Example Problem:
Let's solve a sample problem to illustrate the process:
Problem:
Add the following times:
- 2 hours and 45 minutes
- 1 hour and 30 minutes
Step-by-Step Solution:
####
Step 1: Add the number of hours.
- Hours: \( 2 + 1 = 3 \) hours
####
Step 2: Add the number of minutes.
- Minutes: \( 45 + 30 = 75 \) minutes
####
Step 3: Adjust if the minutes are 60 or more.
- Since 75 minutes is more than 60, we need to convert the excess minutes into hours.
- Subtract 60 from the minutes: \( 75 - 60 = 15 \) minutes
- Add 1 to the hours: \( 3 + 1 = 4 \) hours
Final Answer:
The total time is:
\[ \boxed{4 \text{ hours and } 15 \text{ minutes}} \]
Explanation:
- Adding hours and minutes separately helps keep the calculation organized.
- When the total minutes exceed 60, converting them into hours ensures the time is expressed correctly in standard format (hours and minutes).
This method is practical for everyday scenarios, such as calculating travel times, scheduling, or determining durations.
Parent Tip: Review the logic above to help your child master the concept of time worksheet adding and subtracting.
