Mathematics
         
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Mathematical calculation:
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           ☆1 arithmetic calculations

[1/1 Formula]
    Work: Calculate the value of equation -15%×0.1+10%×0.6+20%×0.3 .
    Question type: Mathematical calculation
    Solution:
          -15%×0.1+10%×0.6+20%×0.3
        =-0.15×0.1+10%×0.6+20%×0.3
        =-0.15×0.1+0.1×0.6+20%×0.3
        =-0.15×0.1+0.1×0.6+0.2×0.3
        =-0.015+0.1×0.6+0.2×0.3
        =-0.015+0.06+0.2×0.3
        =-0.015+0.06+0.06
        =0.045+0.06
        =0.105

    Answer:-15%×0.1+10%×0.6+20%×0.3=0.105


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