122.90.88.191
Sĭng hiĕk: thumb|right|200px|3+2=5 '''Gă-huák'''(加法) sê siŏh cṳ̄ng gĭ-buōng gì sáung-sŭk ông-sáung, ciŏng lâng ciáh hĕ̤k-ciā lâng ciáh ī-s...
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