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

[1/7 Formula]
    Work: Calculate the value of equation 1532-459+842 .
    Question type: Mathematical calculation
    Solution:
          1532-459+842
        =1073+842
        =1915
    Answer:1532-459+842=1915
[2/7 Formula]
    Work: Calculate the value of equation 1584-215+34 .
    Question type: Mathematical calculation
    Solution:
          1584-215+34
        =1369+34
        =1403
    Answer:1584-215+34=1403
[3/7 Formula]
    Work: Calculate the value of equation 1587-145-655 .
    Question type: Mathematical calculation
    Solution:
          1587-145-655
        =1442-655
        =787
    Answer:1587-145-655=787
[4/7 Formula]
    Work: Calculate the value of equation 2465-137-823 .
    Question type: Mathematical calculation
    Solution:
          2465-137-823
        =2328-823
        =1505
    Answer:2465-137-823=1505
[5/7 Formula]
    Work: Calculate the value of equation 1262-364+138 .
    Question type: Mathematical calculation
    Solution:
          1262-364+138
        =898+138
        =1036
    Answer:1262-364+138=1036
[6/7 Formula]
    Work: Calculate the value of equation 2245-245-255 .
    Question type: Mathematical calculation
    Solution:
          2245-245-255
        =2000-255
        =1745
    Answer:2245-245-255=1745
[7/7 Formula]
    Work: Calculate the value of equation 2694-158+106 .
    Question type: Mathematical calculation
    Solution:
          2694-158+106
        =2536+106
        =2642
    Answer:2694-158+106=2642

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>>注：本次最多计算 7 道题。

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