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计算: (a2+3)(a-2)-a(a2-2a).

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=SUM(Sheet2! A2:A7)  =SUM(Sheet2! A2:Sheet2! A7)  =SUM((Sheet2)A2:A7)  =SUM((Sheet2)A2:(Sheet2)A7)  
PS1为水平分片,PS2为垂直分片  PS1为垂直分片,PS2为导出分片  PS1为水平分片,PS2为导出分片  PS1为垂直分片,PS2为水平分片  
=SUM(A2:A5)  =SUMIF(A2:A5,800,B2:B5)  =COUNTIF(A2:A5,800)  =SUM(B2:B5,800,A2:A5)  
=AVERAGE(A2:H2)  =SUM(A2:H2)  =SUM(A2:H2)-MAX(A2:H2)-MIN(A2:H2)  =(SUM(A2:H2)-MAX(A2:H2)-MIN(A2:H2))/(COUNT(A2:H2)-2)  
SUM(A2:A6)  A2+A3+A4+A5+A6  =SUM(A2:A6)  =SUM(A2,A6)  
PS1为水平分片,PS2为垂直分片  PS1为垂直分片,PS2为导出分片  PS1为水平分片,PS2为导出分片  PS1为垂直分片,PS2为水平分片  
如果A1=90、A2=人数、A3=…""、A4=54、A5=36,则公式"=Count(A1:A5)"返回5  如果A1=6.28、A2=3.74,其余单元格为空,则公式"=Counta(A1:A7)"的计算结果等于2  如果A1=90、A2=人数、A3=""、A4=54、A5=36,则公式"=Count(A1:A5)"返回3  如果A1=6.28、A2=3.74,其余单元格为空,则公式"=Counta(A1:A7)"的计算结果等于3  

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