Addition
4 hours 30 minutes +2 hours 50 minutes =
4 hours 50 minutes +2 hours 30 minutes =
3 hours 45 minutes +1 hours 35 minutes =
1 hours 50 minutes +3 hours 45 minutes =
2 hours 25 minutes +4 hours 50 minutes =
Subtract
5 hours 10 minutes - 2 hours 35 minutes =
4 hours 20 minutes - 2 hours 40 minutes =
Answers
Step-by-step explanation:
addition
7 hours + 20 minutes
7 hours + 20 minutes
5 hours + 20 minutes
5 hours + 35 minutes
7 hours + 15 minutes
subtraction
3 hours 25 minutes
2 hours 20 minutes
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Given : Times
4 hours 30 minutes +2 hours 50 minutes =
4 hours 50 minutes +2 hours 30 minutes =
3 hours 45 minutes +1 hours 35 minutes =
1 hours 50 minutes +3 hours 45 minutes =
2 hours 25 minutes +4 hours 50 minutes =
5 hours 10 minutes - 2 hours 35 minutes =
4 hours 20 minutes - 2 hours 40 minutes =
To Find : Addition and subtraction
Solution:
1 hour = 60 mins
4 hours 30 minutes +2 hours 50 minutes =
= ( 4 + 2) hours + ( 30 + 50) minutes
= 6 hours + 80 minutes
= 6 hours + (60 + 20) minutes
= 6 hours + 60 minutes + 20 minutes
60 minutes = 1 hour
= 6 hours + 1 hour + 20 minutes
= (6 + 1) hours + 20 minutes
= 7 hours + 20 minutes
Similarly
4 hours 50 minutes +2 hours 30 minutes = 7 hours + 20 minutes
3 hours 45 minutes +1 hours 35 minutes = 5 hours + 20 minutes
1 hours 50 minutes +3 hours 45 minutes = 5 hours + 35 minutes
2 hours 25 minutes +4 hours 50 minutes = 7 hours + 15 minutes
5 hours 10 minutes - 2 hours 35 minutes =
4 hours + 1 hour + 10 minutes - 2 hours - 35 minutes
= ( 4 - 2) hours + 60 minutes + 10 minutes - 35 minutes
= 2 hours + ( 60 + 10 - 35) minutes
= 2 hours 35 minutes
Similarly :
4 hours 20 minutes - 2 hours 40 minutes = 1 hour 40 minutes
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