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McGraw-Hill Math Grade 3 Answer Key Chapter 9 Lesson 2 Measuring Time in Minutes
Solve
Write how much time has passed.
Question 1.
start 9:30
end 1:46
Answer:
4 hours and 16 minutes
Explanation:
1:46 can be written in the 24-hour format as 13:46.
Now subtract 9:30 from 13:46
13 hour 46 min
-9 hour 30 min
4 hour 16 mins
Question 2.
start 11:00
end 6:45
Answer: 7 hours 45 mins
Explanation:
6:45 can be written in the 24-hour format as 18:45
18 hour 45 mins
-11 hour 00 min
7 hour 45 mins
Question 3.
start 7:00
end 9:00
Answer: 2:00
9 – 7 = 2 hours
Question 4.
I am a time between 1:00 and 3:00. The hour digit is an even number. Both minute digits form an even number, too. The sum of the minute digits is 1. What time am I? _________________
Answer:
Given,
I am a time between 1:00 and 3:00.
The hour digit is an even number.
Both minute digits form an even number, too.
The time between 1:00 and 3:00 is 2:00