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

[1/7 Formula]
    Work: Calculate the value of equation 666-466-179 .
    Question type: Mathematical calculation
    Solution:
          666-466-179
        =200-179
        =21
    Answer:666-466-179=21
[2/7 Formula]
    Work: Calculate the value of equation 760-60+50 .
    Question type: Mathematical calculation
    Solution:
          760-60+50
        =700+50
        =750
    Answer:760-60+50=750
[3/7 Formula]
    Work: Calculate the value of equation 245-145+32 .
    Question type: Mathematical calculation
    Solution:
          245-145+32
        =100+32
        =132
    Answer:245-145+32=132
[4/7 Formula]
    Work: Calculate the value of equation 556-56+85 .
    Question type: Mathematical calculation
    Solution:
          556-56+85
        =500+85
        =585
    Answer:556-56+85=585
[5/7 Formula]
    Work: Calculate the value of equation 364-64+81 .
    Question type: Mathematical calculation
    Solution:
          364-64+81
        =300+81
        =381
    Answer:364-64+81=381
[6/7 Formula]
    Work: Calculate the value of equation 257-57+110 .
    Question type: Mathematical calculation
    Solution:
          257-57+110
        =200+110
        =310
    Answer:257-57+110=310
[7/7 Formula]
    Work: Calculate the value of equation 771-89-71 .
    Question type: Mathematical calculation
    Solution:
          771-89-71
        =682-71
        =611
    Answer:771-89-71=611

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>>注：本次最多计算 7 道题。

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