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

[1/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 88+17
    Solution:
    88+17 = 105
    Column vertical calculation:

			8	8
➕		1	11	7
		1	0	5

[2/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 187+5
    Solution:
    187+5 = 192
    Column vertical calculation:

			1	8	7
➕				1	5
			1	9	2

[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 126-14
    Solution:
    126-14 = 112
    Column vertical calculation:

			1	2	6
➖				1	4
			1	1	2

[4/7 Formula]
    Work: Calculate the value of equation 3.5-2.7 .
    Question type: Mathematical calculation
    Solution:
          3.5-2.7
        =0.8
    Answer:3.5-2.7=0.8
[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 107-103
    Solution:
    107-103 = 4
    Column vertical calculation:

			1	0	7
➖			1	0	3
			0	0	4

[6/7 Formula]
    Work: Calculate the value of equation 28.7-12.3 .
    Question type: Mathematical calculation
    Solution:
          28.7-12.3
        =16.4
    Answer:28.7-12.3=16.4
[7/7 Formula]
    Work: Calculate the value of equation 4.78-12.3 .
    Question type: Mathematical calculation
    Solution:
          4.78-12.3
        =-7.52
    Answer:4.78-12.3=-7.52

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>>注：本次最多计算 7 道题。

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