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yukshing 2009-9-8 17:32

功課唔識做

-12+【10-（-8.75）-25】-（2-6.25）

jackethuang 2009-9-16 18:05

按計數機啦甘簡單

舞文弄墨 2009-9-16 20:38

solve the number in bracket 1st, then just solve it easily:clap:

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