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

[1/7 Formula]
    Work: Calculate the value of equation 74-21-22 .
    Question type: Mathematical calculation
    Solution:
          74-21-22
        =53-22
        =31
    Answer:74-21-22=31
[2/7 Formula]
    Work: Calculate the value of equation 99-24-20 .
    Question type: Mathematical calculation
    Solution:
          99-24-20
        =75-20
        =55
    Answer:99-24-20=55
[3/7 Formula]
    Work: Calculate the value of equation 93-24-17 .
    Question type: Mathematical calculation
    Solution:
          93-24-17
        =69-17
        =52
    Answer:93-24-17=52
[4/7 Formula]
    Work: Calculate the value of equation 94-22-10 .
    Question type: Mathematical calculation
    Solution:
          94-22-10
        =72-10
        =62
    Answer:94-22-10=62
[5/7 Formula]
    Work: Calculate the value of equation 98-10-17 .
    Question type: Mathematical calculation
    Solution:
          98-10-17
        =88-17
        =71
    Answer:98-10-17=71
[6/7 Formula]
    Work: Calculate the value of equation 12-50-25 .
    Question type: Mathematical calculation
    Solution:
          12-50-25
        =-38-25
        =-63
    Answer:12-50-25=-63
[7/7 Formula]
    Work: Calculate the value of equation 85-31-26 .
    Question type: Mathematical calculation
    Solution:
          85-31-26
        =54-26
        =28
    Answer:85-31-26=28

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>>注：本次最多计算 7 道题。

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