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

[1/7 Formula]
    Work: Calculate the value of equation (192÷(84-72))×20 .
    Question type: Mathematical calculation
    Solution:
          (192÷(84-72))×20
        =(192÷12)×20
        =16×20
        =320
    Answer:(192÷(84-72))×20=320
[2/7 Formula]
    Work: Calculate the value of equation 78×(102-78)×2 .
    Question type: Mathematical calculation
    Solution:
          78×(102-78)×2
        =78×24×2
        =1872×2
        =3744
    Answer:78×(102-78)×2=3744
[3/7 Formula]
    Work: Calculate the value of equation 18×(527-498) .
    Question type: Mathematical calculation
    Solution:
          18×(527-498)
        =18×29
        =522
    Answer:18×(527-498)=522
[4/7 Formula]
    Work: Calculate the value of equation (87+72)÷3×9 .
    Question type: Mathematical calculation
    Solution:
          (87+72)÷3×9
        =159÷3×9
        =53×9
        =477
    Answer:(87+72)÷3×9=477
[5/7 Formula]
    Work: Calculate the value of equation 23×(4+47) .
    Question type: Mathematical calculation
    Solution:
          23×(4+47)
        =23×51
        =1173
    Answer:23×(4+47)=1173
[6/7 Formula]
    Work: Calculate the value of equation 484-(13×3+68) .
    Question type: Mathematical calculation
    Solution:
          484-(13×3+68)
        =484-107
        =377
    Answer:484-(13×3+68)=377
[7/7 Formula]
    Work: Calculate the value of equation 280÷(86-79)+15 .
    Question type: Mathematical calculation
    Solution:
          280÷(86-79)+15
        =280÷7+15
        =40+15
        =55
    Answer:280÷(86-79)+15=55

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>>注：本次最多计算 7 道题。

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