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[1/1 Formula]
    Work: Calculate the value of equation 17.8×3.93+19×2.35+17.8×(8.11-2.35-3.93)+(17.8-9.8)×(17.85-8.11+2.35+3.93)+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25 .
    Question type: Mathematical calculation
    Solution:
          17.8×3.93+19×2.35+17.8×(8.11-2.35-3.93)+(17.8-9.8)×(17.85-8.11+2.35+3.93)+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25
        =17.8×3.93+19×2.35+17.8×1.83+(17.8-9.8)×(17.85-8.11+2.35+3.93)+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25
        =17.8×3.93+19×2.35+17.8×1.83+8×(17.85-8.11+2.35+3.93)+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25
        =17.8×3.93+19×2.35+17.8×1.83+8×16.02+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25
        =17.8×3.93+19×2.35+17.8×1.83+8×16.02+8.1×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25
        =17.8×3.93+19×2.35+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25
        =17.8×3.93+19×2.35+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+9.4×1.09+(17.9-9.8)×5.25
        =17.8×3.93+19×2.35+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+9.4×1.09+8.1×5.25
        =69.954+19×2.35+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+9.4×1.09+8.1×5.25
        =69.954+44.65+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+9.4×1.09+8.1×5.25
        =69.954+44.65+32.574+8×16.02+8.1×7.49+9.3×0.69+9.4×1.09+8.1×5.25
        =69.954+44.65+32.574+128.16+8.1×7.49+9.3×0.69+9.4×1.09+8.1×5.25
        =69.954+44.65+32.574+128.16+60.669+9.3×0.69+9.4×1.09+8.1×5.25
        =69.954+44.65+32.574+128.16+60.669+6.417+9.4×1.09+8.1×5.25
        =69.954+44.65+32.574+128.16+60.669+6.417+10.246+8.1×5.25
        =69.954+44.65+32.574+128.16+60.669+6.417+10.246+42.525
        =114.604+32.574+128.16+60.669+6.417+10.246+42.525
        =147.178+128.16+60.669+6.417+10.246+42.525
        =275.338+60.669+6.417+10.246+42.525
        =336.007+6.417+10.246+42.525
        =342.424+10.246+42.525
        =352.67+42.525
        =395.195

    Answer:17.8×3.93+19×2.35+17.8×(8.11-2.35-3.93)+(17.8-9.8)×(17.85-8.11+2.35+3.93)+(17.9-9.8)×7.49+(19.1-9.8)×0.69+(19.2-9.8)×1.09+(17.9-9.8)×5.25=395.195


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