总述：本次共解3题。其中
           ☆算术计算3题

〖1/3算式〗
    作业：求算式 1995+199.5+19.95+1.995 的值.
    题型：数学计算
    解:
          1995+199.5+19.95+1.995
        =2194.5+19.95+1.995
        =2214.45+1.995
        =2216.445
    答案:1995+199.5+19.95+1.995=2216.445
〖2/3算式〗
    作业：求算式 134.56×134.56+2×134.56×865.44+865.44×865.44 的值.
    题型：数学计算
    解:
          134.56×134.56+2×134.56×865.44+865.44×865.44
        =18106.3936+2×134.56×865.44+865.44×865.44
        =18106.3936+269.12×865.44+865.44×865.44
        =18106.3936+232907.2128+865.44×865.44
        =18106.3936+232907.2128+748986.3936
        =251013.6064+748986.3936
        =1000000
    答案:134.56×134.56+2×134.56×865.44+865.44×865.44=1000000
〖3/3算式〗
    作业：求算式 33×33×33+3×33×33×67+3×33×67×67+67×67×67 的值.
    题型：数学计算
    解:
          33×33×33+3×33×33×67+3×33×67×67+67×67×67
        =1089×33+3×33×33×67+3×33×67×67+67×67×67
        =35937+3×33×33×67+3×33×67×67+67×67×67
        =35937+99×33×67+3×33×67×67+67×67×67
        =35937+3267×67+3×33×67×67+67×67×67
        =35937+218889+3×33×67×67+67×67×67
        =35937+218889+99×67×67+67×67×67
        =35937+218889+6633×67+67×67×67
        =35937+218889+444411+67×67×67
        =35937+218889+444411+4489×67
        =35937+218889+444411+300763
        =254826+444411+300763
        =699237+300763
        =1000000
    答案:33×33×33+3×33×33×67+3×33×67×67+67×67×67=1000000

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