28×66+33×44简便计算

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28×66+33×44简便计算28×66+33×44简便计算28×66+33×44简便计算28×66+33×44=56×33+33×44=(56+44)x33=100x33=3300=28*2*33+

28×66+33×44简便计算
28×66+33×44简便计算

28×66+33×44简便计算
28×66+33×44=56×33+33×44=(56+44)x33=100x33=3300

=28*2*33+33*44=56*33+33*44=33*(56+44)=33*100=3300