33.33(2012个3)乘以33.34(2011个3)
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33.33(2012个3)乘以33.34(2011个3)

=3乘以11.11(2012个1)乘以33.34(2011个3)【将乘数拆分】

=3乘以33.34(2011个3)乘以11.11(2012个1)【交换第2第3个乘数】

=100...002(2011个0)乘以11.11(2012个1)

= 11...1122...22(其中2012个1,2012个2)