3.6×2.7+18×0.56-1.8×10% 1998又8/9+1999又8/9+2000又8/9+2001又8/9+2002又8/9+5/9若2!=2×3 ;3!=3×4×5 ;5!=5×6×7×8×9 .按规则计算:6分之4(4/6)以上三道题都要简算,我着急,希望能帮我解答,第一道最后还要÷1
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![3.6×2.7+18×0.56-1.8×10% 1998又8/9+1999又8/9+2000又8/9+2001又8/9+2002又8/9+5/9若2!=2×3 ;3!=3×4×5 ;5!=5×6×7×8×9 .按规则计算:6分之4(4/6)以上三道题都要简算,我着急,希望能帮我解答,第一道最后还要÷1](/uploads/image/z/4850-26-0.jpg?t=3.6%C3%972.7%2B18%C3%970.56-1.8%C3%9710%25+1998%E5%8F%888%2F9%2B1999%E5%8F%888%2F9%2B2000%E5%8F%888%2F9%2B2001%E5%8F%888%2F9%2B2002%E5%8F%888%2F9%2B5%2F9%E8%8B%A52%21%3D2%C3%973+%EF%BC%9B3%21%3D3%C3%974%C3%975+%EF%BC%9B5%21%3D5%C3%976%C3%977%C3%978%C3%979+.%E6%8C%89%E8%A7%84%E5%88%99%E8%AE%A1%E7%AE%97%EF%BC%9A6%E5%88%86%E4%B9%8B4%EF%BC%884%2F6%EF%BC%89%E4%BB%A5%E4%B8%8A%E4%B8%89%E9%81%93%E9%A2%98%E9%83%BD%E8%A6%81%E7%AE%80%E7%AE%97%2C%E6%88%91%E7%9D%80%E6%80%A5%2C%E5%B8%8C%E6%9C%9B%E8%83%BD%E5%B8%AE%E6%88%91%E8%A7%A3%E7%AD%94%2C%E7%AC%AC%E4%B8%80%E9%81%93%E6%9C%80%E5%90%8E%E8%BF%98%E8%A6%81%C3%B71)
3.6×2.7+18×0.56-1.8×10% 1998又8/9+1999又8/9+2000又8/9+2001又8/9+2002又8/9+5/9若2!=2×3 ;3!=3×4×5 ;5!=5×6×7×8×9 .按规则计算:6分之4(4/6)以上三道题都要简算,我着急,希望能帮我解答,第一道最后还要÷1
3.6×2.7+18×0.56-1.8×10% 1998又8/9+1999又8/9+2000又8/9+2001又8/9+2002又8/9+5/9
若2!=2×3 ;3!=3×4×5 ;5!=5×6×7×8×9 .按规则计算:6分之4(4/6)
以上三道题都要简算,我着急,希望能帮我解答,
第一道最后还要÷10% 我忘写了
3.6×2.7+18×0.56-1.8×10% 1998又8/9+1999又8/9+2000又8/9+2001又8/9+2002又8/9+5/9若2!=2×3 ;3!=3×4×5 ;5!=5×6×7×8×9 .按规则计算:6分之4(4/6)以上三道题都要简算,我着急,希望能帮我解答,第一道最后还要÷1
(1)[3.6×2.7+18×0.56-1.8×10%]÷10%
=[1.8x2x2.7+1.8×5.6-1.8×0.1]x10
=[1.8(5.4+5.6-0.1)]x10
=[1.8(10-0.1)]x10
=[18-0.18]x10
=178.2
(2)1998又8/9+1999又8/9+2000又8/9+2001又8/9+2002又8/9+5/9
=(1998+1999+2000+2001+2002)+(8x5+5)/9
=[(1998+2+1999+1+3x2000)+5
=5x2000+5
=10005
(3)若2!=2×3 ;3!=3×4×5 ;5!=5×6×7×8×9 .
按照题目所给规则,
则 4!=4×5×6×7=840
6!=6×7×8×9×10×11=332640
4!/6!=840/332640