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 addition
    Original question: 44+8
    Solution:
    44+8 = 52
    Column vertical calculation:

			4	4
➕			1	8
			5	2

[2/7 Formula]
    Work: Calculate the value of equation 9.9+15.8 .
    Question type: Mathematical calculation
    Solution:
          9.9+15.8
        =25.7
    Answer:9.9+15.8=25.7
[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 37-11
    Solution:
    37-11 = 26
    Column vertical calculation:

			3	7
➖			1	1
			2	6

[4/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 45+38
    Solution:
    45+38 = 83
    Column vertical calculation:

			4	5
➕			31	8
			8	3

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 104-87
    Solution:
    104-87 = 17
    Column vertical calculation:

			1	1
			1	0	4
➖				8	7
			0	1	7

[6/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 20+67
    Solution:
    20+67 = 87
    Column vertical calculation:

			2	0
➕			6	7
			8	7

[7/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 23-13
    Solution:
    23-13 = 10
    Column vertical calculation:

			2	3
➖			1	3
			1	0

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>>注：本次最多计算 7 道题。

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