1、 七年级数学下册整式的加减法练习题精选强烈推荐七年级数学下册整式的加减法练习题精选强烈推荐 204 8(x25)6(x26)(x2y8xy4)3(x2y7xy6)1 1(x213x18y)(x217x19y)7 7 1 1(3k33k24)(k37k26k)2 2 (k26k)(k29k2)(5a26a4b)(7a22a8b)x2(8x29x9)(3x7)8y2(2x2y)(x24y2)5(6x24xyx)(6x25xy x)4 1 6(xy4y27)(x2xy6y24)7 5 6 6(xyy)(xyx2)5 5 (9y7x6z2)(3y x5z2)(5m24m7)(6m7n6)(2x2 x1
2、)9(2x22x)4(x22)4(x27)(x2y3xy7)3(x2y2xy9)7 9(x218x19y)(x213x21y)8 8 1 1(9k32k22)(2k33k27k)4 6 (7k22k)(8k24k1)(3a22a2b)(3a24a8b)7x2(5x2 x8)(9x9)5y2(9x2y)(5x24y2)6(3x26xyx)(2x2 xy2x)5 9 7(xy4y26)(x2xy5y29)8 8 4 6(xyy)(xyx2)5 5 (9y8x8z2)(3y6x8z2)(8m27m7)(9m3n4)(3x27x2)4(2x27x)3(x27)9(x28)(x2y4xy4)5(x2y5xy5)1 4(x214x10y)(x211x29y)3 3 1 1(7k38k21)(8k35k25k)2 6 (6k26k)(9k28k3)(5a24a3b)(a29a8b)9x2(3x27x5)(4x6)3y2(4x2y)(2x29y2)1(8x24xyx)(5x26xy5x)3 8 1(xy8y26)(x2xy9y29)7 4 7 2(xyy)(xyx1)6 3 (7y6x9z2)(9y9x4z2)(6m29m3)(4m6n5)(3x29x7)4(8x2 x)3(x26)4(x22)(x2y9xy9)3(x2y5xy8)7 1 (x217x18y)(x219x23y)8 8