Question

7ч 52мин-3ч 29мин= 4ч 21мин+2ч 58мин= 13ч 25мин-8ч 55мин= решить в столбик

Answer 1

Пошаговое объяснение:

7ч-3ч=4ч

52мин-29мин=23мин =4 ч 23 мин

4ч+2ч=6ч

21мин +58 мин= 1 ч 19 мин =7 ч 19 мин

13ч-8ч =5ч

25 мин-55 мин= никак,поэтому у 5 часов отнимаем час и к минутам прибавляем 60 мин=5ч -1ч=4 ч

85мин-55мин=30 мин =4ч 30 мин

Answer 2

Ответ:

1)4ч 22мин 2) 7ч 19 мин 3) 4ч 30 мин

Пошаговое объяснение:

1)  7ч 52(мин)

 - 3ч 29(мин)

_______

   4ч 22(мин)

2)4ч 21 (мин)

+ 2ч 58(мин)

_________

  7ч 19(мин)

3)13ч 25(мин)

 -8ч 55(мин)

____________

4ч 30(мин)

РАСЦЕНИВАТЬ КАК ВРЕМЯ (60 мин=1 час, а не по 100!)

Answer 3

To solve the given addition problems, let's break them down step by step:

1. 7 hours 52 minutes - 3 hours 29 minutes: - Subtract the hours: 7 hours - 3 hours = 4 hours. - Subtract the minutes: 52 minutes - 29 minutes = 23 minutes. - Therefore, 7 hours 52 minutes - 3 hours 29 minutes = 4 hours 23 minutes.

2. 4 hours 21 minutes + 2 hours 58 minutes: - Add the hours: 4 hours + 2 hours = 6 hours. - Add the minutes: 21 minutes + 58 minutes = 79 minutes. - Since there are 60 minutes in an hour, we can convert 79 minutes to 1 hour and 19 minutes. - Therefore, 4 hours 21 minutes + 2 hours 58 minutes = 6 hours 1 minute.

3. 13 hours 25 minutes - 8 hours 55 minutes: - Subtract the hours: 13 hours - 8 hours = 5 hours. - Subtract the minutes: 25 minutes - 55 minutes = -30 minutes. - Since we have a negative result for the minutes, we need to borrow 1 hour from the hours. - Therefore, 5 hours - 1 hour = 4 hours. - Add the borrowed hour to the minutes: -30 minutes + 60 minutes = 30 minutes. - Therefore, 13 hours 25 minutes - 8 hours 55 minutes = 4 hours 30 minutes.

Here is the solution in column format:

   7h 52m
-  3h 29m
---------
   4h 23m

4h 21m
+  2h 58m
---------
   6h  1m

13h 25m
-  8h 55m
---------
   4h 30m

I hope this helps! Let me know if you have any further questions.