Overview: 7 questions will be solved this time.Among them
           ☆7 integer calculations

[1/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 45-34
    Solution:
    45-34 = 11
    Column vertical calculation:

			4	5
➖			3	4
			1	1

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 65-55
    Solution:
    65-55 = 10
    Column vertical calculation:

			6	5
➖			5	5
			1	0

[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 97-52
    Solution:
    97-52 = 45
    Column vertical calculation:

			9	7
➖			5	2
			4	5

[4/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 43-20
    Solution:
    43-20 = 23
    Column vertical calculation:

			4	3
➖			2	0
			2	3

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 59-25
    Solution:
    59-25 = 34
    Column vertical calculation:

			5	9
➖			2	5
			3	4

[6/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 68-25
    Solution:
    68-25 = 43
    Column vertical calculation:

			6	8
➖			2	5
			4	3

[7/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 96-73
    Solution:
    96-73 = 23
    Column vertical calculation:

			9	6
➖			7	3
			2	3

---

>>注：本次最多计算 7 道题。

Your problem has not been solved here? Please go to the Hot Problems section！