初一数学上册计算训练营4.docx

1、初一数学上册计算训练营4 6 2 ()()(8) 8(2)3(2) 7 7 7 1 4 ( )( ） 8(13)10(11) 8 6 5 1 (0.6)(5) (3)442 (1)1234 9 1 1 1 ()()0 1(1)3(5 8 6 7 1 4 3 ( )( ) 12(10)1(19) 6 5 4 3 8 ( )(90) (4)252 (1)2971 4 7 (17)(5) 3(15) 8.5(19) 1 1 ()() 150(62) (4)314 7 8 339(17)(15) 0.4(5.2)(0.6)1.8 2 1 1 4 2 3 ()() 8.3()(1.1) 9 2 2 5

2、5 5 (4m5) x3(75a) 15x2(9b8t) (9xb)6(3m2a) 1 (64x)t 8(4d5ab5) 3 1 1 (bc)(ef) 5(7bx)6(n7p) 6 6 6a(7a4) a(8a3d)(6d6a) 4(2m7)3m 6(2x8)(4x9) 8(ab2a)(5a7b) 14(abc9a)6(8a3abc) 8(xy5z)(xy8z) 2(pqpr)(8pqpr) 5 x 1 x 0.4x0.41.63.2x 6 6 9 2 1 3x4x 7(x7)5(x7)2 3 7 1 4 (3x5)x6 6x9(11x)6 8 5 y1 y1 2 5x3(x7)40 3 5

3、0.7x0.66.99.3x 3(3x5)2 4 4 ()()(5) 20(4)3(4) 7 7 6 1 2 ( )( ） 30(17)4(11) 5 8 3 1 (0.4)(200) (1)322 (1)1832 6 1 1 1 ()()0 7(4)3(3 9 2 5 1 6 1 ( )( ) 18(22)7(13) 7 7 8 7 1 ( )(60) (1)232 (1)1727 8 4 (14)(1) 15(3) 2(17) 1 1 ()() 55(87) (0)252 4 7 820(3)(23) 9.1(7.2)(1.3)3 2 1 1 3 6 7 ()() 2.8()(8.4) 3

4、 2 6 5 5 5 (5m2) z4(94b) 20a8(2b3t) (7ab)8(4m9b) 1 (126z)t 6(2c7bc7) 5 1 1 (ab)(mn) 2(9ax)2(m2p) 8 9 7a(2a8) 3a(4a7c)(8c2a) 9(9s3)3s 5(5y9)(8y2) 2(ab5a)(7a2b) 18(abc6a)6(6a8abc) 4(xy3z)(xy2z) 8(pqpr)(6pqpr) 7 x 1 x 0.6x0.96.96x 3 2 6 4 1 9x9x 4(x2)3(x2)18 9 2 1 1 (8x5)x6 4x3(8x)3 3 5 y1 y2 5 2x8(x8)

5、40 3 6 0.2x0.75.77.4x 2(2x7)2 5 1 ()()(4) 29(2)2(2) 7 7 1 1 1 ( )( ） 26(10)6(19) 9 6 9 1 (0.7)(200) (1)243 (1)1494 5 1 1 1 ()()0 21(1)2(1 6 2 5 1 4 1 ( )( ) 29(26)10(19) 8 5 2 1 1 ( )(70) (1)332 (1)1288 2 3 (2)(17) 6(9) 10(4) 1 1 ()() 122(710) (0)414 5 2 512(28)(9) 2.9(6.4)(2.5)5 2 1 1 3 9 6 ()() 1.

6、9()(6.2) 9 8 8 7 5 5 (4a7) y3(39a) 13a5(2n3t) (2an)6(4a2a) 5 (126y)t 6(9d6xy2) 4 1 1 (bc)(mn) 2(6ax)2(m9q) 2 8 6m(4m5) 8m(9m9d)(4d8m) 4(4n2)7n 5(4a1)(6a8) 2(ab2a)(3a6b) 4(abc9a)5(6a3abc) 3(xy3z)(xy7z) 9(pqpr)(7pqpr) 7 x 1 x 0.7x0.26.44.3x 3 4 9 4 1 3x6x 8(x3)7(x2)18 3 6 1 3 (6x7)x9 8x6(11x)2 5 5 y3

7、y3 3 0.5x1.5(x5)15 4 6 0.6x0.85.51.9x 3(7x1)1 4 5 ()()(10) 4(2)3(1) 7 7 4 1 1 ( )( ） 11(18)5(20) 3 2 5 1 (0.6)(50) (4)442 (1)1803 3 1 1 1 ()()0 20(4)3(4 7 2 6 1 1 1 ( )( ) 16(29)9(14) 3 3 3 2 1 ( )(90) (3)333 (1)2119 3 2 (7)(20) 19(7) 2.5(6.5) 1 1 ()() 44(76) (5)323 7 9 520(8)(26) 9.5(2)(0.9)3.6 2 1

8、 1 2 7 1 ()() 2.4()(1.6) 5 2 4 5 5 5 (6y1) z7(36c) 17x7(7n6c) (6xn)4(8y7c) 6 (42z)c 5(4c8xy7) 7 1 1 (xy)(pq) 4(6ay)7(n5p) 9 3 7x(2x2) 4x(4x2z)(6zx) 8(6n2)9n 10(2m1)(6m4) 3(ab6a)(2a5b) 16(abc7a)4(5a2abc) 3(xy5z)(xy4z) 6(pqpr)(3pqpr) 7 x 1 x 0.3x0.43.90.4x 3 6 3 4 1 5x7x 9(x3)9(x3)8 5 9 1 4 (4x4)x1 7x

9、9(9x)5 3 5 y2 y1 8 0.5x8(x5)25 4 6 0.5x0.60.64.8x 7(9x9)9 4 5 ()()(5) 14(1)3(5) 7 7 1 1 6 ( )( ） 6(15)9(12) 2 2 7 1 (0.3)(90) (2)222 (1)2604 9 1 1 1 ()()0 14(2)3(5 4 5 4 1 1 1 ( )( ) 23(22)5(16) 6 4 5 1 1 ( )(10) (4)233 (1)1576 7 3 (11)(3) 4(18) 3.5(9) 1 1 ()() 124(77) (3)433 2 8 1315(18)(6) 4.4(4.8

10、)(1)4.1 2 1 1 4 3 6 ()() 8.7()(3.3) 5 4 2 5 5 5 (9m4) y9(27c) 14x2(7n3z) (8xn)6(7m4c) 1 (162y)z 2(5b8ab5) 7 1 1 (yz)(pq) 2(8by)8(n9p) 5 4 5b(6b5) 6b(4b7z)(7z4b) 8(8s9)3s 5(3a1)(8a2) 2(ab6a)(2a5b) 9(abc7a)6(8a7abc) 8(xy2z)(xy3z) 3(pqpr)(5pqpr) 7 x 1 x 0.5x0.88.29.4x 6 2 3 8 1 2x8x 5(x5)5(x8)7 9 9 1 2 (3x2)x5 7x7(4x)5 2 5 y3 y1 9 0.5x9(x2)10 2 5 0.8x0.41.63x 3(2x1)9