七年级数学上册计算题天天练77.docx

1、七年级数学上册计算题天天练77 1 1 (bc)(mn) 4(6ay)4(n2p) 8 4 7a(4a1) a(8a4s)(2s5a) 4(3b4)8b 4(8b8)(8b10) 3(ab6a)(5a6b) 9(abc3a)4(3a9abc) 9(xy9z)(xy6z) 2(pqpr)(6pqpr) 7 x 1 x 0.4x0.79.90.5x 9 2 6 4 1 8x4x 8(x6)7(x7)1 9 5 1 3 (5x3)x5 6x5(17x)1 9 5 y1 y3 9 1.5x5(x8)5 3 6 1 2 (54x)(5x1) 4(6x7)8 4 9 4 3 ()()(7) 25(4)2(

2、5) 7 7 5 1 1 ( )( ） 11(25)5(14) 6 2 7 1 (0.4)(10) (1)343 (1)1559 9 1 1 1 ()()0 25(3)2(2 3 7 8 1 1 1 ( )( ) 20(22)2(14) 8 4 2 1 2 ( )(30) (2)233 (1)2990 5 3 (11)(11) 8(11) 2(10) 1 1 ()() 164(210) (2)214 9 5 2817(8)(5) 3.4(2.9)(3.2)2.2 2 1 1 2 2 9 ()() 4.9()(2.6) 9 8 5 7 5 5 (2n9) x6(56a) 20a8(8y9z) (

3、2ay)2(5n5a) 4 (210x)z 4(2d6ab6) 5 1 1 (bc)(pq) 4(9ax)4(m9q) 6 2 7y(8y6) 8y(8y5c)(7c3y) 3(5s10)5s 8(3a10)(2a5) 9(ab5a)(4a3b) 6(abc6a)4(6a7abc) 8(xy9z)(xy2z) 6(pqpr)(8pqpr) 5 x 1 x 0.3x0.387.1x 6 2 6 4 1 5x4x 4(x7)7(x4)13 7 4 1 2 (6x9)x1 9x7(3x)3 7 5 y2 y2 3 2x6(x2)10 2 6 1 2 (33x)(3x1) 2(9x3)14 7 5 3

4、 1 ()()(10) 29(4)3(1) 7 7 1 1 1 ( )( ） 30(21)4(10) 8 4 7 1 (0.8)(800) (1)453 (1)1865 6 1 1 1 ()()0 10(1)2(5 4 5 7 1 9 9 ( )( ) 27(11)6(16) 2 8 8 1 4 ( )(20) (3)432 (1)2280 5 5 (8)(12) 2(3) 3.5(20) 1 1 ()() 100(19) (0)312 6 5 3811(26)(14) 2.1(9.3)(4)1.2 2 1 1 1 3 4 ()() 9.1()(8.2) 3 7 6 5 5 5 (2x8) y

5、6(14c) 17a7(7b2t) (8ab)2(2x7c) 1 (86y)t 9(8d8bc1) 8 1 1 (xy)(st) 2(6ay)8(n7p) 6 9 9b(2b9) 3b(3b6s)(5s8b) 7(9m10)4m 9(3b7)(5b10) 7(ab3a)(2a9b) 7(abc7a)8(9a8abc) 9(xy3z)(xy8z) 3(pqpr)(4pqpr) 7 x 1 x 0.5x0.61.27.8x 9 4 9 2 1 4x1x 9(x2)4(x3)13 7 7 1 1 (4x8)x2 9x4(16x)2 9 5 y1 y2 5 4x5(x3)5 3 6 1 2 (42x)

6、(3x4) 5(4x5)7 7 5 1 5 ()()(1) 19(1)2(4) 7 7 4 1 2 ( )( ） 24(13)10(15) 5 4 3 1 (0.3)(6) (2)442 (1)1404 9 1 1 1 ()()0 12(3)3(1 3 5 8 1 2 1 ( )( ) 11(30)9(12) 6 3 6 7 1 ( )(30) (4)233 (1)2986 8 2 (4)(10) 20(12) 0.5(8.5) 1 1 ()() 95(52) (5)313 3 4 405(26)(15) 10(0.7)(3)4.9 2 1 1 3 9 7 ()() 6.8()(4.1) 5

7、9 7 5 5 5 (8a2) z5(42b) 19m2(7y7z) (4my)6(3a4b) 1 (26z)z 8(7a8mn8) 3 1 1 (ab)(pq) 3(8bx)3(n3p) 9 4 3b(8b3) 5b(6b2d)(9db) 6(3m1)3m 4(6m10)(3m2) 5(ab3a)(6a8b) 12(abc4a)8(3a7abc) 4(xy2z)(xy9z) 7(pqpr)(7pqpr) 7 x 1 x 0.4x0.65.44.9x 3 6 9 2 1 9x1x 3(x3)6(x1)17 3 7 1 2 (4x6)x4 6x8(4x)6 5 5 y2 y1 7 0.5x2(x

8、4)40 3 6 1 2 (42x)(3x2) 7(8x6)10 8 5 6 4 ()()(1) 3(4)2(1) 7 7 6 1 1 ( )( ） 6(29)10(11) 7 8 3 1 (0.3)(10) (1)342 (1)1605 3 1 1 1 ()()0 1(4)3(5 6 6 6 1 1 4 ( )( ) 6(23)8(20) 3 5 3 7 7 ( )(80) (4)243 (1)2733 6 8 (20)(4) 5(1) 14.5(3) 1 1 ()() 45(198) (0)432 3 7 287(19)(14) 5(0.4)(4.3)0.1 2 1 1 2 8 4 ()(

9、) 8.7()(2.1) 9 6 9 5 5 5 (7y7) x5(17c) 5m6(4b9c) (9mb)5(6y2c) 7 (164x)c 3(9d8xy8) 6 1 1 (bc)(st) 3(9by)9(m9q) 6 7 9y(3y1) y(9y2s)(6s2y) 4(6a6)2a 9(9n3)(8n5) 9(ab3a)(8a2b) 7(abc2a)7(9a3abc) 4(xy3z)(xy4z) 4(pqpr)(5pqpr) 5 x 1 x 0.1x0.15.12.3x 6 8 6 8 1 2x4x 3(x3)2(x7)18 5 9 1 1 (7x2)x7 7x5(1x)7 6 5 y2

10、 y1 7 4.5x2(x3)20 3 6 1 2 (33x)(3x3) 8(8x9)2 4 5 5 5 ()()(2) 24(4)3(3) 7 7 5 1 1 ( )( ） 1(14)4(16) 4 2 9 1 (0.2)(10) (3)213 (1)2893 7 1 1 1 ()()0 25(4)3(5 9 9 5 1 7 1 ( )( ) 25(13)1(20) 4 6 2 4 3 ( )(90) (2)222 (1)2058 3 4 (20)(19) 11(4) 11.5(16.5) 1 1 ()() 132(129) (1)242 9 6 101(27)(24) 0.8(4.4)(3

11、.4)3.2 2 1 1 2 1 1 ()() 9.1()(3.8) 7 7 7 7 5 5 (3m3) z8(39b) 2m5(3b9z) (6mb)9(6m2b) 3 (1210z)z 7(9d7ab4) 2 1 1 (xy)(ef) 2(9bx)4(n2p) 4 5 8y(3y8) y(6y9q)(6q9y) 2(8n2)5n 6(3m5)(8m8) 9(ab9a)(7a7b) 15(abc9a)6(5a3abc) 8(xy5z)(xy8z) 3(pqpr)(7pqpr) 7 x 1 x 0.2x0.66.52.4x 6 4 3 2 1 9x8x 2(x4)5(x6)11 7 2 1 3 (7x3)x4 4x9(17x)3 8 5 y2 y3 9 5x9(x1)50 2 5 1 2 (42x)(5x2) 5(3x6)13 4 5