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

[1/7 Formula]
    Work: Calculate the value of equation 1069-(253-31) .
    Question type: Mathematical calculation
    Solution:
          1069-(253-31)
        =1069-222
        =847
    Answer:1069-(253-31)=847
[2/7 Formula]
    Work: Calculate the value of equation 1172-(36-28) .
    Question type: Mathematical calculation
    Solution:
          1172-(36-28)
        =1172-8
        =1164
    Answer:1172-(36-28)=1164
[3/7 Formula]
    Work: Calculate the value of equation 1132-(136-68) .
    Question type: Mathematical calculation
    Solution:
          1132-(136-68)
        =1132-68
        =1064
    Answer:1132-(136-68)=1064
[4/7 Formula]
    Work: Calculate the value of equation 1056-(128-44) .
    Question type: Mathematical calculation
    Solution:
          1056-(128-44)
        =1056-84
        =972
    Answer:1056-(128-44)=972
[5/7 Formula]
    Work: Calculate the value of equation 857-(135-43) .
    Question type: Mathematical calculation
    Solution:
          857-(135-43)
        =857-92
        =765
    Answer:857-(135-43)=765
[6/7 Formula]
    Work: Calculate the value of equation 1165-(230-35) .
    Question type: Mathematical calculation
    Solution:
          1165-(230-35)
        =1165-195
        =970
    Answer:1165-(230-35)=970
[7/7 Formula]
    Work: Calculate the value of equation 1162-(36-38) .
    Question type: Mathematical calculation
    Solution:
          1162-(36-38)
        =1162-(-2)
        =1164
    Answer:1162-(36-38)=1164

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>>注：本次最多计算 7 道题。

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