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

[1/7 Formula]
    Work: Calculate the value of equation 84+(42-54) .
    Question type: Mathematical calculation
    Solution:
          84+(42-54)
        =84+(-12)
        =72
    Answer:84+(42-54)=72
[2/7 Formula]
    Work: Calculate the value of equation 59+27-20 .
    Question type: Mathematical calculation
    Solution:
          59+27-20
        =86-20
        =66
    Answer:59+27-20=66
[3/7 Formula]
    Work: Calculate the value of equation 73-27+17 .
    Question type: Mathematical calculation
    Solution:
          73-27+17
        =46+17
        =63
    Answer:73-27+17=63
[4/7 Formula]
    Work: Calculate the value of equation 64-(25+10) .
    Question type: Mathematical calculation
    Solution:
          64-(25+10)
        =64-35
        =29
    Answer:64-(25+10)=29
[5/7 Formula]
    Work: Calculate the value of equation 58-(13+17) .
    Question type: Mathematical calculation
    Solution:
          58-(13+17)
        =58-30
        =28
    Answer:58-(13+17)=28
[6/7 Formula]
    Work: Calculate the value of equation 22+53-25 .
    Question type: Mathematical calculation
    Solution:
          22+53-25
        =75-25
        =50
    Answer:22+53-25=50
[7/7 Formula]
    Work: Calculate the value of equation 85-34+26 .
    Question type: Mathematical calculation
    Solution:
          85-34+26
        =51+26
        =77
    Answer:85-34+26=77

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>>注：本次最多计算 7 道题。

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