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80ʮ81ʮ82ʮ83ʮ84ʮ85ʮ86μ㣿

⣺ԭʽ=807+1+2+3+4+5+6 =560+[(1+6)62] =560+[7

80-81=-182-83=-1ɴơ ԭʽ=-1+-1+-1+-1+-1+100

721 75ʮ86ʮ83ʮ72ʮ78ʮ80ʮ81ʮ79ʮ87 80Ϊ׼: -5+6+3-

1.13̨ûз1.14Ȩ rootĬֻбʵȨ,Ҫͨ,

һ:(ע:һҪֱ,ٰѻӻ) (8+40)25 1

ɰԪĩβȷϡ Ԫǰ0Ϊ1Ϊ2Ϊ3Ϊ죬4Ϊ5Ϊ6Ϊң7Ϊ

1one 2 two 3 three 4 four 5 five 6 six 7 seven 8 e

1.Ұ:šʧ񵽴ǡ,Ĵ,ŵ 2.

ѧرʫ100 ʫ ع,ں֮ޡŮ,Ӻϡ β,

һְ졢һáһ֮һ׷߲ʫé®±ʳ¡ ɷ˵֪ơ

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