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

[1/7 Formula]
    Work: Calculate the value of equation 415-174-126 .
    Question type: Mathematical calculation
    Solution:
          415-174-126
        =241-126
        =115
    Answer:415-174-126=115
[2/7 Formula]
    Work: Calculate the value of equation 2000-128-372 .
    Question type: Mathematical calculation
    Solution:
          2000-128-372
        =1872-372
        =1500
    Answer:2000-128-372=1500
[3/7 Formula]
    Work: Calculate the value of equation 478+627+173 .
    Question type: Mathematical calculation
    Solution:
          478+627+173
        =1105+173
        =1278
    Answer:478+627+173=1278
[4/7 Formula]
    Work: Calculate the value of equation 267+389+133 .
    Question type: Mathematical calculation
    Solution:
          267+389+133
        =656+133
        =789
    Answer:267+389+133=789
[5/7 Formula]
    Work: Calculate the value of equation 527+158-127 .
    Question type: Mathematical calculation
    Solution:
          527+158-127
        =685-127
        =558
    Answer:527+158-127=558
[6/7 Formula]
    Work: Calculate the value of equation 158+139+142+161 .
    Question type: Mathematical calculation
    Solution:
          158+139+142+161
        =297+142+161
        =439+161
        =600
    Answer:158+139+142+161=600
[7/7 Formula]
    Work: Calculate the value of equation 527-189+173 .
    Question type: Mathematical calculation
    Solution:
          527-189+173
        =338+173
        =511
    Answer:527-189+173=511

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>>注：本次最多计算 7 道题。

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