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

[1/7 Formula]
    Work: Calculate the value of equation 78.9-34.2 .
    Question type: Mathematical calculation
    Solution:
          78.9-34.2
        =44.7
    Answer:78.9-34.2=44.7
[2/7 Formula]
    Work: Calculate the value of equation 12.1-0.8 .
    Question type: Mathematical calculation
    Solution:
          12.1-0.8
        =11.3
    Answer:12.1-0.8=11.3
[3/7 Formula]
    Work: Calculate the value of equation 2.3-0.1 .
    Question type: Mathematical calculation
    Solution:
          2.3-0.1
        =2.2
    Answer:2.3-0.1=2.2
[4/7 Formula]
    Work: Calculate the value of equation 4.29-0.01 .
    Question type: Mathematical calculation
    Solution:
          4.29-0.01
        =4.28
    Answer:4.29-0.01=4.28
[5/7 Formula]
    Work: Calculate the value of equation 78.2-3.1 .
    Question type: Mathematical calculation
    Solution:
          78.2-3.1
        =75.1
    Answer:78.2-3.1=75.1
[6/7 Formula]
    Work: Calculate the value of equation 78.2-8.1 .
    Question type: Mathematical calculation
    Solution:
          78.2-8.1
        =70.1
    Answer:78.2-8.1=70.1
[7/7 Formula]
    Work: Calculate the value of equation 12.1-1.1 .
    Question type: Mathematical calculation
    Solution:
          12.1-1.1
        =11
    Answer:12.1-1.1=11

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>>注：本次最多计算 7 道题。

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