请用简便方法求下列各数的平均值,162,161,157,156,163,164,169,153,161,155,166,159.

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请用简便方法求下列各数的平均值,162,161,157,156,163,164,169,153,161,155,166,159.

请用简便方法求下列各数的平均值,162,161,157,156,163,164,169,153,161,155,166,159.
请用简便方法求下列各数的平均值,162,161,157,156,163,164,169,153,161,155,166,159.

请用简便方法求下列各数的平均值,162,161,157,156,163,164,169,153,161,155,166,159.
=160*12+(2+2-3-4+3+4+9-7+1-5+6-1)
=160*12+7
=1927