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

[1/7 Formula]
    Work: Calculate the value of equation 634-66-34 .
    Question type: Mathematical calculation
    Solution:
          634-66-34
        =568-34
        =534
    Answer:634-66-34=534
[2/7 Formula]
    Work: Calculate the value of equation 648-52-48 .
    Question type: Mathematical calculation
    Solution:
          648-52-48
        =596-48
        =548
    Answer:648-52-48=548
[3/7 Formula]
    Work: Calculate the value of equation 635-65-35 .
    Question type: Mathematical calculation
    Solution:
          635-65-35
        =570-35
        =535
    Answer:635-65-35=535
[4/7 Formula]
    Work: Calculate the value of equation 636-64-36 .
    Question type: Mathematical calculation
    Solution:
          636-64-36
        =572-36
        =536
    Answer:636-64-36=536
[5/7 Formula]
    Work: Calculate the value of equation 672-56-44 .
    Question type: Mathematical calculation
    Solution:
          672-56-44
        =616-44
        =572
    Answer:672-56-44=572
[6/7 Formula]
    Work: Calculate the value of equation 686-43-57 .
    Question type: Mathematical calculation
    Solution:
          686-43-57
        =643-57
        =586
    Answer:686-43-57=586
[7/7 Formula]
    Work: Calculate the value of equation 672-23-77 .
    Question type: Mathematical calculation
    Solution:
          672-23-77
        =649-77
        =572
    Answer:672-23-77=572

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>>注：本次最多计算 7 道题。

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