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: 38-27
    Solution:
    38-27 = 11
    Column vertical calculation:

			3	8
➖			2	7
			1	1

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 95-30
    Solution:
    95-30 = 65
    Column vertical calculation:

			9	5
➖			3	0
			6	5

[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 28-15
    Solution:
    28-15 = 13
    Column vertical calculation:

			2	8
➖			1	5
			1	3

[4/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 72-50
    Solution:
    72-50 = 22
    Column vertical calculation:

			7	2
➖			5	0
			2	2

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 100-37
    Solution:
    100-37 = 63
    Column vertical calculation:

			1	1
			1	0	0
➖				3	7
			0	6	3

[6/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 86-45
    Solution:
    86-45 = 41
    Column vertical calculation:

			8	6
➖			4	5
			4	1

[7/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 35-14
    Solution:
    35-14 = 21
    Column vertical calculation:

			3	5
➖			1	4
			2	1

---

>>注：本次最多计算 7 道题。

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