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

[1/2 Formula]
    Work: Calculate the value of equation (1+3+5+7+9+11)+(1+3+5+7+9)+(1+3+5+7)+(1+3+5)+(1+3)+1 .
    Question type: Mathematical calculation
    Solution:
          (1+3+5+7+9+11)+(1+3+5+7+9)+(1+3+5+7)+(1+3+5)+(1+3)+1
        =36+(1+3+5+7+9)+(1+3+5+7)+(1+3+5)+(1+3)+1
        =36+25+(1+3+5+7)+(1+3+5)+(1+3)+1
        =36+25+16+(1+3+5)+(1+3)+1
        =36+25+16+9+(1+3)+1
        =36+25+16+9+4+1
        =61+16+9+4+1
        =77+9+4+1
        =86+4+1
        =90+1
        =91
    Answer:(1+3+5+7+9+11)+(1+3+5+7+9)+(1+3+5+7)+(1+3+5)+(1+3)+1=91
[2/2 Formula]
    Work: Calculate the value of equation 6*(1+3+5+7+9+11)+5*(1+3+5+7+9)+4*(1+3+5+7)+3*(1+3+5)+2*(1+3)+1*1 .
    Question type: Mathematical calculation
    Solution:
          6*(1+3+5+7+9+11)+5*(1+3+5+7+9)+4*(1+3+5+7)+3*(1+3+5)+2*(1+3)+1*1
        =6*36+5*(1+3+5+7+9)+4*(1+3+5+7)+3*(1+3+5)+2*(1+3)+1*1
        =6*36+5*25+4*(1+3+5+7)+3*(1+3+5)+2*(1+3)+1*1
        =6*36+5*25+4*16+3*(1+3+5)+2*(1+3)+1*1
        =6*36+5*25+4*16+3*9+2*(1+3)+1*1
        =6*36+5*25+4*16+3*9+2*4+1*1
        =216+5*25+4*16+3*9+2*4+1*1
        =216+125+4*16+3*9+2*4+1*1
        =216+125+64+3*9+2*4+1*1
        =216+125+64+27+2*4+1*1
        =216+125+64+27+8+1*1
        =216+125+64+27+8+1
        =341+64+27+8+1
        =405+27+8+1
        =432+8+1
        =440+1
        =441
    Answer:6*(1+3+5+7+9+11)+5*(1+3+5+7+9)+4*(1+3+5+7)+3*(1+3+5)+2*(1+3)+1*1=441

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