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Current location：Mathematical operation > History of Mathematical Computation > Answer
Overview: 1 questions will be solved this time.Among them
☆1 arithmetic calculations
[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)×0.14 .
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)×0.14
=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)×0.14
=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)×0.14
=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)×0.14
=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)×0.14
=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)×0.14
=17.8×3.93+19×2.35+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+9.4×0.14
=69.954+19×2.35+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+9.4×0.14
=69.954+44.65+17.8×1.83+8×16.02+8.1×7.49+9.3×0.69+9.4×0.14
=69.954+44.65+32.574+8×16.02+8.1×7.49+9.3×0.69+9.4×0.14
=69.954+44.65+32.574+128.16+8.1×7.49+9.3×0.69+9.4×0.14
=69.954+44.65+32.574+128.16+60.669+9.3×0.69+9.4×0.14
=69.954+44.65+32.574+128.16+60.669+6.417+9.4×0.14
=69.954+44.65+32.574+128.16+60.669+6.417+1.316
=114.604+32.574+128.16+60.669+6.417+1.316
=147.178+128.16+60.669+6.417+1.316
=275.338+60.669+6.417+1.316
=336.007+6.417+1.316
=342.424+1.316
=343.74
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)×0.14=343.74