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Quiz on Factorization of Quadratic Polynomials (Cross Method) 因式分解一元二次多項式(十字相乘法):測驗
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
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算柱 (兩位數)
兩組對邊相等和有直角的四邊形
三位數除以一位數(二)
兩位數除以一位數(一)
異分母分數減法
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