Question

Add the following:

(1) 3 hours 40 minutes + 2 hours 55 minutes 

(2) 5 hours 25 minutes + 4 hours 35 minutes

(3) 6 hours 45 minutes + 1 hour 30 minutes 

(4) 7 hours 50 minutes + 2 hours 30 minutes 

(5) 9 hours 10 minutes + 3 hours 20 minutes 

(6) 15 hours 45 minutes + 20 hours 15 minutes

Answer 1

(1) 6 hrs 35 min 

(2) 10 hrs 

(3) 8 hrs 15 min 

(4) 10 hrs 20 min 

(5) 12 hrs 30 min 

(6) 36 hours