总述：本次共解1题。其中
           ☆算术计算1题

〖1/1算式〗
    作业：求算式 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 的值.
    题型：数学计算
    解:
          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
    答案: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

你的问题在这里没有得到解决？请到 热门难题 里面看看吧！