99*11+33*22+33*66+22

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99*11+33*22+33*66+22
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99*11+33*22+33*66+22
99*11+33*22+33*66+22

99*11+33*22+33*66+22
99*11+33*22+33*66+22
=99*11+33*88+22
=9*11*11+24*11*11+22
=33*11*11+22
=(363+2)*11
=365*10+365
=3650+365
=4015

99*11+33*22+33*66+22
简便运算吗? 不怎么好简便啊!!!
99*11+33*22+33*66+22
=99*11+33*88+22
=9*11*11+24*11*11+22
=33*11*11+22
=(363+2)*11
=365*10+365
=3650+365
=4015