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

[1/7 Formula]
    Work: Calculate the value of equation 21÷(9÷3) .
    Question type: Mathematical calculation
    Solution:
          21÷(9÷3)
        =21÷3
        =7
    Answer:21÷(9÷3)=7
[2/7 Formula]
    Work: Calculate the value of equation 73-(12-4) .
    Question type: Mathematical calculation
    Solution:
          73-(12-4)
        =73-8
        =65
    Answer:73-(12-4)=65
[3/7 Formula]
    Work: Calculate the value of equation 72÷(12-4) .
    Question type: Mathematical calculation
    Solution:
          72÷(12-4)
        =72÷8
        =9
    Answer:72÷(12-4)=9
[4/7 Formula]
    Work: Calculate the value of equation 45-(28+36) .
    Question type: Mathematical calculation
    Solution:
          45-(28+36)
        =45-64
        =-19
    Answer:45-(28+36)=-19
[5/7 Formula]
    Work: Calculate the value of equation 42÷(45-38) .
    Question type: Mathematical calculation
    Solution:
          42÷(45-38)
        =42÷7
        =6
    Answer:42÷(45-38)=6
[6/7 Formula]
    Work: Calculate the value of equation 36×(96-58) .
    Question type: Mathematical calculation
    Solution:
          36×(96-58)
        =36×38
        =1368
    Answer:36×(96-58)=1368
[7/7 Formula]
    Work: Calculate the value of equation (6+13)×10 .
    Question type: Mathematical calculation
    Solution:
          (6+13)×10
        =19×10
        =190
    Answer:(6+13)×10=190

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>>注：本次最多计算 7 道题。

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