Answer:
77- 43=34
It needs to be added by 43 to get 77.
So, 43 is the answer.
Answer:
905 - 825 = 80
that means 80 min is between those times,
80 min = 1 hr and 20 min
*WARNING THIS WILL NOT WORK FOR SOME QUESTIONS, I AM DOING A SHORTCUT WAY!!*
Answer: <u><em>1 hr and 20 min has passed from 8:25 to 9:05. </em></u>