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 subtraction
    Original question: 107-5
    Solution:
    107-5 = 102
    Column vertical calculation:

			1	0	7
➖					5
			1	0	2

[2/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 101-3
    Solution:
    101-3 = 1-18
    Column vertical calculation:

				1
			1	0	1
➖					3
			1	-1	8

[3/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 68-24
    Solution:
    68-24 = 44
    Column vertical calculation:

			6	8
➖			2	4
			4	4

[4/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 101-25
    Solution:
    101-25 = 76
    Column vertical calculation:

			1	1
			1	0	1
➖				2	5
			0	7	6

[5/7 Integer column vertical calculation]
    Question type: Integer subtraction
    Original question: 93-8
    Solution:
    93-8 = 85
    Column vertical calculation:

			1
			9	3
➖				8
			8	5

[6/7 Integer column vertical calculation]
    Question type: Integer addition
    Original question: 87+9
    Solution:
    87+9 = 96
    Column vertical calculation:

			8	7
➕			1	9
			9	6

[7/7 Formula]
    Work: Calculate the value of equation 0.8+2.1 .
    Question type: Mathematical calculation
    Solution:
          0.8+2.1
        =2.9
    Answer:0.8+2.1=2.9

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>>注：本次最多计算 7 道题。

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