Overview: 2 questions will be solved this time.Among them
           ☆2 arithmetic calculations

[1/2 Formula]
    Work: Calculate the value of equation (9*9-4*4)/(9-4)+(7*7-5*5)/(7-5) .
    Question type: Mathematical calculation
    Solution:
          (9*9-4*4)/(9-4)+(7*7-5*5)/(7-5)
        =65/(9-4)+(7*7-5*5)/(7-5)
        =65/5+(7*7-5*5)/(7-5)
        =65/5+24/(7-5)
        =65/5+24/2
        =13+24/2
        =13+12
        =25
    Answer:(9*9-4*4)/(9-4)+(7*7-5*5)/(7-5)=25
[2/2 Formula]
    Work: Calculate the value of equation ((1+2+3+4+5+6+7+8+9+10)+(1+2+3+4+5+6+7+8+9+10))/((1+2+3+4+5+6+7+8+9+10)) .
    Question type: Mathematical calculation
    Solution:
          ((1+2+3+4+5+6+7+8+9+10)+(1+2+3+4+5+6+7+8+9+10))/((1+2+3+4+5+6+7+8+9+10))
        =(55+(1+2+3+4+5+6+7+8+9+10))/((1+2+3+4+5+6+7+8+9+10))
        =(55+55)/((1+2+3+4+5+6+7+8+9+10))
        =110/((1+2+3+4+5+6+7+8+9+10))
        =110/(55)
        =110/55
        =2
    Answer:((1+2+3+4+5+6+7+8+9+10)+(1+2+3+4+5+6+7+8+9+10))/((1+2+3+4+5+6+7+8+9+10))=2

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