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: 82-25
    Solution:
    82-25 = 57
    Column vertical calculation:

			1
			8	2
➖			2	5
			5	7

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 75-27
    Solution:
    75-27 = 48
    Column vertical calculation:

			1
			7	5
➖			2	7
			4	8

[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 81-18
    Solution:
    81-18 = 63
    Column vertical calculation:

			1
			8	1
➖			1	8
			6	3

[4/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 98-19
    Solution:
    98-19 = 79
    Column vertical calculation:

			1
			9	8
➖			1	9
			7	9

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 50-11
    Solution:
    50-11 = 39
    Column vertical calculation:

			1
			5	0
➖			1	1
			3	9

[6/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 91-17
    Solution:
    91-17 = 74
    Column vertical calculation:

			1
			9	1
➖			1	7
			7	4

[7/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 84-17
    Solution:
    84-17 = 67
    Column vertical calculation:

			1
			8	4
➖			1	7
			6	7

---

>>注：本次最多计算 7 道题。

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