人教版初二数学上册同底数幂的乘法练习题精选57.docx

1、人教版初二数学上册同底数幂的乘法练习题精选57 x8x4 z3z5 t3t9 (5)(5)5(5)9 x5nx6n+1 x3nx4n+1 1 1 1 ()6()4()4 x9x7 b3b 8 8 8 (3)6(3)9(3)4 xx7 z3z9 1 1 1 ()()5()3 xmx3m+1 xmx2m+1 2 2 2 x3x5 t2t6 t3t7 (3)(3)8(3)3 x5mx9m-1 x4nx7n+1 1 1 1 ()9()7()8 y7y7 x6x5 8 8 8 (3)(3)9(3)6 zz3 bb9 1 1 1 ()()8()9 xnx7n-1 y4ny4n+1 6 6 6 xx3 b5

2、b2 a6a4 (4)(4)4(4)3 xnx9n+1 x3nx4n+1 1 1 1 ()()2()9 x9x7 y3y 3 3 3 (1)2(1)8(1)2 tt5 x4x4 1 1 1 ()()7()6 xnx6n+1 x7mx8m-1 7 7 7 x8x4 yy5 t7t3 (8)2(8)9(8)8 xmx2m-1 xnx4n-1 1 1 1 ()()9()6 y6y t3t 3 3 3 (2)(2)9(2)7 c5c7 x4x6 1 1 1 ()()4()6 y4my2m-1 yny3n-1 7 7 7 x7x7 cc8 bb8 (5)7(5)9(5)5 xmx9m+1 x2nx2n-

3、1 1 1 1 ()()8()5 a6a9 x6x8 8 8 8 (6)7(6)9(6)6 tt4 aa8 1 1 1 ()()3()4 xmx3m-1 x8mx7m-1 6 6 6 x6x6 z9z9 b2b7 (1)9(1)7(1)5 x6mx2m-1 x2mx3m-1 1 1 1 ()2()8()7 y7y4 c7c9 6 6 6 (1)2(1)7(1)8 zz2 aa2 1 1 1 ()()2()3 xnx3n-1 xmx2m-1 2 2 2 xx2 zz7 xx6 (9)(9)7(9)9 x9nx6n-1 x6nx5n-1 1 1 1 ()6()7()2 t2t8 t5t4 7 7

4、7 (10)(10)8(10)5 b4b9 a5a2 1 1 1 ()4()8()8 ymy5m-1 xmx5m-1 5 5 5 xx8 zz5 zz6 (7)7(7)4(7)5 xmx2m-1 x7mx3m+1 1 1 1 ()7()3()6 x9x y5y 9 9 9 (8)(8)7(8)4 ss8 bb7 1 1 1 ()5()6()5 x2mx6m-1 x9nx2n-1 9 9 9 x9x3 zz8 cc3 (8)7(8)6(8)6 xmx2m+1 x3nx3n+1 1 1 1 ()()4()3 s5s y8y2 7 7 7 (6)(6)2(6)5 s7s3 bb4 1 1 1 ()2

5、()2()2 ymy2m-1 ymy8m-1 4 4 4 xx6 s8s2 c8c9 (3)9(3)4(3)2 x5mx3m+1 x8mx7m-1 1 1 1 ()()4()9 c4c5 x6x2 9 9 9 (10)(10)8(10)2 cc2 cc7 1 1 1 ()2()7()7 ymy9m+1 x7mx4m-1 3 3 3 xx3 ss7 ss8 (2)(2)5(2)7 xmx7m+1 x7nx4n+1 1 1 1 ()3()2()6 b4b8 a2a 9 9 9 (4)6(4)6(4)7 a2a7 a4a7 1 1 1 ()6()5()7 yny3n-1 yny4n+1 7 7 7

6、x3x3 t4t3 x3x6 (7)(7)6(7)5 xmx8m-1 x9mx3m-1 1 1 1 ()3()6()8 c9c4 b7b9 4 4 4 (8)(8)3(8)3 tt7 xx4 1 1 1 ()6()5()6 xmx2m+1 y9my6m+1 8 8 8 xx4 aa3 x2x8 (6)2(6)2(6)8 x8nx5n-1 x6nx5n+1 1 1 1 ()7()5()7 y8y x6x 3 3 3 (2)(2)5(2)4 zz3 cc2 1 1 1 ()()3()4 x7mx3m-1 x7mx2m+1 9 9 9 xx7 x9x8 zz8 (2)(2)2(2)9 x4mx7m-

7、1 xnx6n+1 1 1 1 ()2()7()3 a7a9 c2c3 6 6 6 (1)(1)9(1)9 c7c8 t3t4 1 1 1 ()5()9()5 ymy2m+1 xmx3m+1 8 8 8 x2x5 yy8 a3a5 (2)8(2)4(2)5 x3nx8n+1 xnx6n+1 1 1 1 ()2()6()2 x4x y5y 7 7 7 (1)3(1)6(1)7 z6z2 a6a6 1 1 1 ()5()4()8 ymy3m+1 x5nx2n+1 9 9 9 x3x6 c5c7 t2t3 (1)(1)9(1)7 xnx8n+1 x5mx6m+1 1 1 1 ()()8()9 b4b

8、 z4z 9 9 9 (1)6(1)3(1)4 tt2 bb3 1 1 1 ()()7()9 x9mx2m-1 xmx5m+1 3 3 3 x9x6 tt8 yy5 (1)7(1)5(1)6 xmx5m+1 xmx3m+1 1 1 1 ()5()8()4 c8c7 c4c 4 4 4 (5)7(5)3(5)4 tt5 y4y7 1 1 1 ()2()3()8 ymy2m-1 y7my9m-1 3 3 3 xx9 b3b4 tt2 (3)5(3)7(3)9 xmx9m-1 x6nx7n+1 1 1 1 ()4()7()6 c4c2 s5s 5 5 5 (1)5(1)2(1)5 cc6 y4y7

9、1 1 1 ()7()4()4 y2ny5n+1 yny6n+1 5 5 5 x9x8 bb3 zz2 (7)(7)8(7)4 xnx8n+1 x8mx7m-1 1 1 1 ()()5()6 a2a a8a 7 7 7 (3)(3)6(3)3 zz8 c8c4 1 1 1 ()()9()3 yny9n+1 xnx4n+1 2 2 2 xx7 y6y3 tt2 (7)(7)6(7)2 xnx8n-1 xnx3n-1 1 1 1 ()9()3()4 s8s8 b3b 3 3 3 (10)5(10)4(10)4 yy5 b6b4 1 1 1 ()8()8()7 y4ny7n+1 xmx8m-1 8

10、8 8 x2x4 z2z7 cc7 (6)8(6)8(6)6 x2nx9n-1 xnx3n-1 1 1 1 ()6()9()5 s7s9 y5y 3 3 3 (1)5(1)7(1)5 t3t9 xx9 1 1 1 ()()7()7 y6my7m-1 y8my9m+1 5 5 5 x9x7 y5y9 y2y5 (8)(8)9(8)3 xnx6n+1 xnx2n-1 1 1 1 ()2()2()3 t6t x6x 2 2 2 (8)(8)8(8)6 tt9 yy3 1 1 1 ()6()3()9 x4nx8n-1 ymy7m+1 4 4 4 xx4 bb6 bb9 (4)(4)2(4)3 x6mx

11、5m-1 xnx5n-1 1 1 1 ()()6()4 x9x7 b9b 5 5 5 (8)(8)7(8)5 b8b9 yy6 1 1 1 ()4()8()9 yny5n+1 y2my9m+1 8 8 8 xx7 aa7 z6z3 (2)(2)8(2)8 xnx8n-1 x3mx2m+1 1 1 1 ()9()2()3 s3s6 t9t 8 8 8 (8)3(8)9(8)9 b8b9 z9z7 1 1 1 ()4()6()6 y5ny4n+1 x7nx8n-1 2 2 2 xx6 b2b9 t4t6 (7)9(7)7(7)7 xnx9n-1 x3mx3m-1 1 1 1 ()()4()4 c6

12、c b6b 6 6 6 (3)8(3)5(3)9 bb2 zz9 1 1 1 ()()8()6 xnx3n-1 y7ny5n-1 5 5 5 xx5 yy3 b4b3 (9)7(9)8(9)2 xnx6n+1 x8mx4m-1 1 1 1 ()8()4()6 s6s x7x 3 3 3 (6)(6)4(6)8 x4x3 ss5 1 1 1 ()()3()6 y7my9m+1 x2mx5m-1 4 4 4 x8x2 x8x7 aa8 (1)(1)2(1)9 xnx5n-1 x9nx8n-1 1 1 1 ()2()4()9 b3b3 b2b7 8 8 8 (7)5(7)8(7)5 x9x9 y4y5 1 1 1 ()()2()8 y8my8m-1 ymy8m-1 7 7 7 x9x5 y2y9 s6s4 (1)5(1)9(1)3 x6nx8n-1 x3nx8n-1 1 1 1 ()()5()6 a7a4 b6b 7 7 7 (5)(5)4(5)2 tt3 aa9 1 1 1 ()5()6()5 xnx2n+1 y6ny2n-1 5 5 5