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 subtraction
    Original question: 47-22
    Solution:
    47-22 = 25
    Column vertical calculation:

			4	7
➖			2	2
			2	5

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 58-7
    Solution:
    58-7 = 51
    Column vertical calculation:

			5	8
➖				7
			5	1

[3/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 24+32
    Solution:
    24+32 = 56
    Column vertical calculation:

			2	4
➕			3	2
			5	6

[4/7 Formula]
    Work: Calculate the value of equation 3.2+6 .
    Question type: Mathematical calculation
    Solution:
          3.2+6
        =9.2
    Answer:3.2+6=9.2
[5/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 63+7
    Solution:
    63+7 = 70
    Column vertical calculation:

			6	3
➕			1	7
			7	0

[6/7 Formula]
    Work: Calculate the value of equation 9.5-3.8 .
    Question type: Mathematical calculation
    Solution:
          9.5-3.8
        =5.7
    Answer:9.5-3.8=5.7
[7/7 Formula]
    Work: Calculate the value of equation 2.3+9.9 .
    Question type: Mathematical calculation
    Solution:
          2.3+9.9
        =12.2
    Answer:2.3+9.9=12.2

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>>注：本次最多计算 7 道题。

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