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

[1/6 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 41-13
    Solution:
    41-13 = 28
    Column vertical calculation:

			1
			4	1
➖			1	3
			2	8

[2/6 Formula]
    Work: Calculate the value of equation 35+45-10 .
    Question type: Mathematical calculation
    Solution:
          35+45-10
        =80-10
        =70
    Answer:35+45-10=70
[3/6 Formula]
    Work: Calculate the value of equation 67-27+17 .
    Question type: Mathematical calculation
    Solution:
          67-27+17
        =40+17
        =57
    Answer:67-27+17=57
[4/6 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 88-19
    Solution:
    88-19 = 69
    Column vertical calculation:

			1
			8	8
➖			1	9
			6	9

[5/6 Formula]
    Work: Calculate the value of equation 97-27+17 .
    Question type: Mathematical calculation
    Solution:
          97-27+17
        =70+17
        =87
    Answer:97-27+17=87
[6/6 Formula]
    Work: Calculate the value of equation 87-17+7 .
    Question type: Mathematical calculation
    Solution:
          87-17+7
        =70+7
        =77
    Answer:87-17+7=77

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