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5
5
Author:
katrinaleungkl
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漂亮的摇摆曲线
三位數除以一位數(一)
兩位數除以一位數(一)
多邊形的面積
平行線的斜率
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Is this a prism 4
摩天輪
不規則圖形的周界(凹)
函数情调
倒水验证勾股定理
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Congruence
Interest Calculation
Perimeter
Quadratic Functions
Stochastic Process or Random Process