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

[1/7 Formula]
    Work: Calculate the value of equation 53+(27-21) .
    Question type: Mathematical calculation
    Solution:
          53+(27-21)
        =53+6
        =59
    Answer:53+(27-21)=59
[2/7 Formula]
    Work: Calculate the value of equation 51+26-34 .
    Question type: Mathematical calculation
    Solution:
          51+26-34
        =77-34
        =43
    Answer:51+26-34=43
[3/7 Formula]
    Work: Calculate the value of equation 57-24+18 .
    Question type: Mathematical calculation
    Solution:
          57-24+18
        =33+18
        =51
    Answer:57-24+18=51
[4/7 Formula]
    Work: Calculate the value of equation 87-(24+22) .
    Question type: Mathematical calculation
    Solution:
          87-(24+22)
        =87-46
        =41
    Answer:87-(24+22)=41
[5/7 Formula]
    Work: Calculate the value of equation 42-(61-38) .
    Question type: Mathematical calculation
    Solution:
          42-(61-38)
        =42-23
        =19
    Answer:42-(61-38)=19
[6/7 Formula]
    Work: Calculate the value of equation 40+45-25 .
    Question type: Mathematical calculation
    Solution:
          40+45-25
        =85-25
        =60
    Answer:40+45-25=60
[7/7 Formula]
    Work: Calculate the value of equation 46+27-33 .
    Question type: Mathematical calculation
    Solution:
          46+27-33
        =73-33
        =40
    Answer:46+27-33=40

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>>注：本次最多计算 7 道题。

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