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 155×(2.188+1.988+1.788+1.588)+1/2×52.7×1.488×1.7+1/2×52.7×11.9×1.488 的值.
    题型：数学计算
    解:
          155×(2.188+1.988+1.788+1.588)+1/2×52.7×1.488×1.7+1/2×52.7×11.9×1.488
        =155×7.552+1/2×52.7×1.488×1.7+1/2×52.7×11.9×1.488
        =1170.56+1/2×52.7×1.488×1.7+1/2×52.7×11.9×1.488
        =1170.56+0.5×52.7×1.488×1.7+1/2×52.7×11.9×1.488
        =1170.56+26.35×1.488×1.7+1/2×52.7×11.9×1.488
        =1170.56+39.2088×1.7+1/2×52.7×11.9×1.488
        =1170.56+66.65496+1/2×52.7×11.9×1.488
        =1170.56+66.65496+0.5×52.7×11.9×1.488
        =1170.56+66.65496+26.35×11.9×1.488
        =1170.56+66.65496+313.565×1.488
        =1170.56+66.65496+466.58472
        =1237.21496+466.58472
        =1703.79968
    答案:155×(2.188+1.988+1.788+1.588)+1/2×52.7×1.488×1.7+1/2×52.7×11.9×1.488=1703.79968

你的问题在这里没有得到解决？请到 热门难题 里面看看吧！