Mathematical+Skills+GS

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6+ _ __=15 8+__ _=15 9+ _ __=15 7+__ _ =15 5+ _ __=15 10+__ _ =15 13+ _ __=15 15+__ _ =15 12+ ___=15 14+__ _=15 11+ ___=15

Double 6 = Double 8 = Double 4 = Double 5 = Double 7 = Double 9 = Double 3 = Double 2 = Double 10=