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

[1/7 Formula]
    Work: Calculate the value of equation 587-287+439+61 .
    Question type: Mathematical calculation
    Solution:
          587-287+439+61
        =300+439+61
        =739+61
        =800
    Answer:587-287+439+61=800
[2/7 Formula]
    Work: Calculate the value of equation 500+157+234+143 .
    Question type: Mathematical calculation
    Solution:
          500+157+234+143
        =657+234+143
        =891+143
        =1034
    Answer:500+157+234+143=1034
[3/7 Formula]
    Work: Calculate the value of equation 698+91+9 .
    Question type: Mathematical calculation
    Solution:
          698+91+9
        =789+9
        =798
    Answer:698+91+9=798
[4/7 Formula]
    Work: Calculate the value of equation 155+864+136+545 .
    Question type: Mathematical calculation
    Solution:
          155+864+136+545
        =1019+136+545
        =1155+545
        =1700
    Answer:155+864+136+545=1700
[5/7 Formula]
    Work: Calculate the value of equation 568+178-168 .
    Question type: Mathematical calculation
    Solution:
          568+178-168
        =746-168
        =578
    Answer:568+178-168=578
[6/7 Formula]
    Work: Calculate the value of equation 358+561+239 .
    Question type: Mathematical calculation
    Solution:
          358+561+239
        =919+239
        =1158
    Answer:358+561+239=1158
[7/7 Formula]
    Work: Calculate the value of equation 182+165+135-182 .
    Question type: Mathematical calculation
    Solution:
          182+165+135-182
        =347+135-182
        =482-182
        =300
    Answer:182+165+135-182=300

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>>注：本次最多计算 7 道题。

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