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

[1/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 86-31
    Solution:
    86-31 = 55
    Column vertical calculation:

			8	6
➖			3	1
			5	5

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 124-78
    Solution:
    124-78 = 46
    Column vertical calculation:

			1	1
			1	2	4
➖				7	8
			0	4	6

[3/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 42+13
    Solution:
    42+13 = 55
    Column vertical calculation:

			4	2
➕			1	3
			5	5

[4/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 95+23
    Solution:
    95+23 = 118
    Column vertical calculation:

			9	5
➕		1	2	3
		1	1	8

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 62-9
    Solution:
    62-9 = 53
    Column vertical calculation:

			1
			6	2
➖				9
			5	3

[6/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 27+23
    Solution:
    27+23 = 50
    Column vertical calculation:

			2	7
➕			21	3
			5	0

[7/7 Formula]
    Work: Calculate the value of equation 12.6+1.5 .
    Question type: Mathematical calculation
    Solution:
          12.6+1.5
        =14.1
    Answer:12.6+1.5=14.1

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>>注：本次最多计算 7 道题。

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