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

[1/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 94-3
    Solution:
    94-3 = 91
    Column vertical calculation:

			9	4
➖				3
			9	1

[2/7 Formula]
    Work: Calculate the value of equation 23.6-6 .
    Question type: Mathematical calculation
    Solution:
          23.6-6
        =17.6
    Answer:23.6-6=17.6
[3/7 Formula]
    Work: Calculate the value of equation 19.3+2.6 .
    Question type: Mathematical calculation
    Solution:
          19.3+2.6
        =21.9
    Answer:19.3+2.6=21.9
[4/7 Formula]
    Work: Calculate the value of equation 1.7+8.6 .
    Question type: Mathematical calculation
    Solution:
          1.7+8.6
        =10.3
    Answer:1.7+8.6=10.3
[5/7 Formula]
    Work: Calculate the value of equation 1.8+2.3 .
    Question type: Mathematical calculation
    Solution:
          1.8+2.3
        =4.1
    Answer:1.8+2.3=4.1
[6/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 38+12
    Solution:
    38+12 = 50
    Column vertical calculation:

			3	8
➕			11	2
			5	0

[7/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 36-5
    Solution:
    36-5 = 31
    Column vertical calculation:

			3	6
➖				5
			3	1

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>>注：本次最多计算 7 道题。

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