甘肃省永登县20242024学年北师大七年级下期末数学试卷二答案不全
七年级数学(下)期末复习试卷2一.填空题(每题3分,共30分)1. (-b)2·(-b)3· (-b)5=_____; 若2x+y=3,则4x·2y=___2.(3x+5y)·_____=9x2-
甘肃省永登县20242024学年北师大七年级下期末数学试卷二答案不全