27乘33-33乘27+90乘33简便计算

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27乘33-33乘27+90乘33简便计算27乘33-33乘27+90乘33简便计算27乘33-33乘27+90乘33简便计算27乘33-33乘27+90乘33=90x33=(100-10)x33=3

27乘33-33乘27+90乘33简便计算
27乘33-33乘27+90乘33简便计算

27乘33-33乘27+90乘33简便计算
27乘33-33乘27+90乘33
=90x33
=(100-10)x33
=3300-330
=2970

27乘33-33乘27+90乘33=(27-27+90)x33=(100-10)x33
=33x100-33x10
=3300-300-30
=3000-30
=2970

33X<27-27>+<33X90>
=<30X90>+<3X90>
=2700+270
=2970

27乘33-33乘27+90乘33
=90x33
=(100-10)x33
=3300-330
=2970