Math, asked by rvskohila36gmailcom, 6 months ago

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

Answered by rbmythili6666
4

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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Answered by amitnrw
0

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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