33/37×36
=33/37×（37-1）
=33/37×37-33/37×1
=33-33/37
=32又4/37
33/37×38
=33/37×（37+1）
=33/37×37+33/37×1
=33+33/37
=33又33/37
33/37×36
=33/37x(37-1)
=33/37x37-33/37x1
=33-33/37
=32又4/37
33/37×38
=33/37x（37+1）
=33/37x37+33/37x1
=33+33/37
=33又33/37
0.67×10.1－6.7
=6.7x1.01-6.7x1
=6.7x（1.01-1）
=6.7x0.01
=0.067
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