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

[1/7 Formula]
    Work: Calculate the value of equation 358+243-258+257 .
    Question type: Mathematical calculation
    Solution:
          358+243-258+257
        =601-258+257
        =343+257
        =600
    Answer:358+243-258+257=600
[2/7 Formula]
    Work: Calculate the value of equation 299+224+301+276 .
    Question type: Mathematical calculation
    Solution:
          299+224+301+276
        =523+301+276
        =824+276
        =1100
    Answer:299+224+301+276=1100
[3/7 Formula]
    Work: Calculate the value of equation 385+733+215+167 .
    Question type: Mathematical calculation
    Solution:
          385+733+215+167
        =1118+215+167
        =1333+167
        =1500
    Answer:385+733+215+167=1500
[4/7 Formula]
    Work: Calculate the value of equation 842+229+258+271 .
    Question type: Mathematical calculation
    Solution:
          842+229+258+271
        =1071+258+271
        =1329+271
        =1600
    Answer:842+229+258+271=1600
[5/7 Formula]
    Work: Calculate the value of equation 468+239-268+361 .
    Question type: Mathematical calculation
    Solution:
          468+239-268+361
        =707-268+361
        =439+361
        =800
    Answer:468+239-268+361=800
[6/7 Formula]
    Work: Calculate the value of equation 318+139+161 .
    Question type: Mathematical calculation
    Solution:
          318+139+161
        =457+161
        =618
    Answer:318+139+161=618
[7/7 Formula]
    Work: Calculate the value of equation 318+238-138 .
    Question type: Mathematical calculation
    Solution:
          318+238-138
        =556-138
        =418
    Answer:318+238-138=418

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>>注：本次最多计算 7 道题。

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