第三章整式计算专练 2023-2024学年北师大版七年级数学上册

计算需要一个 细心 七上第三章整式计算专练01 七上第三章整式计算专练01 (1)-xy2+3xy2 (2)7a+3a2+2a-a2+3 (3)3a+2b-5a-b (4)-4ab+ b2-9ab- b2 (5)3f+2f-7f (6)3pq+7pq+4pq+pq (7)8p2-7q+6q-7q2-7 (8)m- n- n- m (9)x-f+5x-4f (10)2a+3b+6a+9b-8a+12b (11)5a-3b-a+2b (12)7xy-8wx+5xy-12xy (13)6x+2x2 -3x+x2 +1 (14)4x2 +3xy-x2 -9 (15)3pq- - 4pq (16)4a-(a-3b) (17)a+(5a-3b)-(a-2b) (18)3(2xy-y)-2xy (19)5x-y-2(x-y) (20)8x-(-3x-5) (21)(3x-1)-(2-5x) (22)(-4y+3)-(-5y-2) (23)3x+1-2(4-x) (24)3(xy-2z)+(-xy+3z) (25)-4(pq+pr)+(4pq+pr) (26)(2x-3y)-(5x-y) (27)-5(x-2y+1)-(1-3x+4y) (28)-3x2+7x-6+2x2-5x-1 (29)1-3(x- 2)+(-x+ ) (30) a2b-b2c+3a2b+2b2c 学科网（北京）股份有限公司 $$ 计算需要一个 细心 七上第三章整式计算专练02 七上第三章整式计算专练02 (31)(2x2-3x+1)+(-3x2+5x-7) (32)(-x2+3xy- 2)-(- x2+4xy- 2) (33)(4k2+7k)+(-k2+3k-1) (34)(5y+3x-15z2)-(12y+7x+z2) (35)7(+p2-p-1)-2(+p) (36)-(+m2n+m2)-( –m2n-m2) (37)(3x2+2xy- x)-(2x2-xy+x) (38)( xy+y2+1)+(x2- xy-2y2-1) (39)-(x2y+3xy-4)+3(x2y-xy+2) (40)-(2+4k2-28)+(-2k2+4k) (41)3x2-(2x2+5x-1)-(3x+1) (42)(xy- y- )-(xy- x+1) (43)4y2-(x2+y)+(x2-4y2) (44)-a2b- ab2+ a2b+ab2 (45) 2a2b-4b+5-5a2b+4b-3 (46) a2-8a- +6a- a2+ (47) 6a2﹣4ab﹣4（2a2+ab） (48) (3x2＋x－5)-(4－x＋7x2) (49) 9x2+[4x2-3x-2(x2-3x)] (50) 4(y-1)+2(1-x)-2(x+2y) (51) 4x3－(－6x3)＋(－9x3) (52) ﹣3(2x2-xy)+4(x2+xy﹣6） 学科网（北京）股份有限公司 $$ 计算需要一个 细心 七上第三章整式计算专练03 七上第三章整式计算专练03 (53)5x⁴+3x2y-10-3x2y+x⁴-1 (54)p2+3pq+6-8p2+pq (55)2(3m2+2n2)-3(4m2-n2) (56)-(a⁵-6b)-(-7+3b) (57)3xy- (xy-y) (58)-3(2x2-xy)+4(x2+xy-6) (59)-3x2+5x-0.5x2+x-1 (60)(-4x2+2x-8)-(x-1) (61)(5a2-3b2)+(a2+b2)-(5a2+3b2) (62)2(a2b+ab2)-2(a2b-1)-2a2b-2 (63)(2x2y+3xy2)-(6x2y-3xy2)