初一数学上册计算题专项训练104.docx

1、初一数学上册计算题专项训练104 4 6 ()()(1) 29(4)2(1) 7 7 6 1 1 ( )( ） 9(16)1(12) 5 2 5 1 (0.4)(9) (5)233 (1)1832 5 1 1 1 ()()0 24(2)2(3 5 5 6 1 1 1 ( )( ) 3(24)3(17) 5 2 7 6 1 ( )(70) (2)333 (1)1335 5 6 (18)(18) 1(8) 3.5(10) 1 1 ()() 45(202) (1)233 4 8 39(15)(22) 3.1(2.4)(3.6)8.5 2 1 1 4 2 6 ()() 9.2()(1.4) 7 3 6

2、 5 5 5 (2a4) y3(72a) 10x7(7b9z) (9xb)7(9a2a) 10 (108y)z 3(5d9xy9) 9 1 1 (xy)(ef) 4(6ax)8(m2p) 4 2 5y(5y9) 9y(8y8p)(2p8y) 5(6s8)2s 4(2y9)(3y1) 9(ab2a)(9a9b) 17(abc3a)8(2a6abc) 8(xy6z)(xy6z) 5(pqpr)(3pqpr) 5 x 1 x 0.8x0.555x 3 6 9 8 1 9x8x 9(x1)9(x5)20 5 4 1 4 (3x5)x5 2x7(19x)4 7 5 y2 y1 5 3x7(x2)25 2

3、 5 0.4x0.115.9x 5(9x7)16 4 6 ()()(8) 23(1)3(4) 7 7 2 1 6 ( )( ） 10(24)9(10) 3 2 5 1 (0.5)(3) (1)412 (1)1321 3 1 1 1 ()()0 29(1)2(4 6 8 5 1 7 7 ( )( ) 30(19)7(16) 7 8 6 1 1 ( )(50) (3)223 (1)2120 4 8 (14)(15) 14(10) 8.5(7) 1 1 ()() 23(106) (1)213 4 5 306(10)(9) 2.3(5.8)(2.1)6.1 2 1 1 3 6 6 ()() 8.2()

4、(3.4) 3 7 4 7 5 5 (3b1) y6(73b) 18m9(8b8z) (5mb)8(7b4b) 10 (208y)z 4(6c4ab1) 9 1 1 (yz)(ef) 2(9by)5(n3q) 8 9 3m(7m8) m(2m5q)(6qm) 8(3n1)3n 4(6y4)(3y6) 6(ab3a)(4a2b) 4(abc9a)4(7a4abc) 2(xy8z)(xy5z) 8(pqpr)(2pqpr) 7 x 1 x 0.6x0.868.2x 6 6 3 4 1 9x5x 2(x4)6(x4)5 3 2 1 2 (7x3)x4 7x2(11x)6 9 5 y1 y1 4 5x

5、9.5(x2)10 3 5 0.7x0.95.31.1x 8(2x2)5 3 6 ()()(10) 29(3)3(3) 7 7 1 1 1 ( )( ） 15(10)5(18) 3 4 5 1 (0.7)(400) (1)433 (1)1231 2 1 1 1 ()()0 4(3)2(4 6 6 5 1 2 1 ( )( ) 13(14)3(19) 6 3 7 1 3 ( )(20) (5)312 (1)2686 8 4 (8)(14) 10(11) 0(3.5) 1 1 ()() 164(166) (1)232 8 7 239(21)(28) 6.7(7.2)(1.1)7.8 2 1 1 4

6、 8 8 ()() 7.8()(9.8) 5 4 4 5 5 5 (3x9) z3(24b) 15a3(3b8t) (3ab)4(9x6b) 1 (26z)t 6(7c4xy5) 7 1 1 (xy)(pq) 3(6ay)6(n3p) 3 7 3b(6b3) 4b(4b5d)(8d7b) 4(7s1)4s 8(3n10)(4n5) 6(ab3a)(8a5b) 10(abc2a)2(2a8abc) 9(xy8z)(xy8z) 5(pqpr)(5pqpr) 5 x 1 x 0.1x0.71.19.6x 9 2 3 4 1 5x6x 5(x3)4(x3)20 3 3 1 2 (7x5)x5 3x3(

7、8x)9 7 5 y2 y2 9 5x9.5(x6)10 2 6 0.4x0.88.96x 3(7x9)14 3 4 ()()(6) 1(1)3(5) 7 7 3 1 1 ( )( ） 26(19)3(15) 2 2 9 1 (0.9)(200) (3)232 (1)1911 9 1 1 1 ()()0 29(4)2(5 5 7 9 1 1 6 ( )( ) 4(23)3(11) 6 5 5 1 1 ( )(30) (2)352 (1)1019 5 3 (5)(18) 12(10) 8(21.5) 1 1 ()() 102(1510) (3)444 2 4 4016(8)(5) 8.4(3.6

8、)(1.4)7.7 2 1 1 1 7 6 ()() 1.6()(1.4) 5 6 8 7 5 5 (6a2) z2(74b) 3x7(2n9z) (2xn)8(8a7b) 3 (68z)z 5(2c8bc5) 2 1 1 (xy)(pq) 3(9ay)2(n8q) 9 2 3a(2a2) 8a(2a2q)(7qa) 7(2n9)2n 1(4m10)(4m2) 6(ab9a)(3a6b) 6(abc6a)8(7a8abc) 6(xy5z)(xy7z) 3(pqpr)(4pqpr) 7 x 1 x 0.8x0.57.80.8x 3 6 3 2 1 3x1x 5(x3)4(x6)17 9 9 1

9、4 (3x6)x5 2x4(17x)4 9 5 y1 y3 6 0.5x5.5(x1)20 4 5 0.5x0.431.3x 6(7x6)10 3 6 ()()(2) 19(3)3(2) 7 7 1 1 6 ( )( ） 15(19)10(16) 3 6 5 1 (0.2)(5) (3)343 (1)1251 6 1 1 1 ()()0 17(2)3(3 5 5 9 1 8 5 ( )( ) 24(12)10(17) 3 7 6 1 1 ( )(40) (2)322 (1)2350 7 3 (16)(5) 8(5) 14(24.5) 1 1 ()() 122(109) (3)322 4 8 2

10、119(11)(22) 6.1(9.6)(1.7)4.2 2 1 1 3 7 4 ()() 9.6()(7.1) 9 3 5 7 5 5 (8m3) z8(43c) 5m4(9y5t) (2my)4(6m9c) 3 (102z)t 2(3a8xy1) 2 1 1 (yz)(st) 3(7ay)9(m8q) 4 7 2a(7a9) a(5a7c)(7ca) 3(6a10)2a 9(6n5)(7n4) 8(ab3a)(5a7b) 12(abc8a)4(4a2abc) 9(xy7z)(xy5z) 7(pqpr)(8pqpr) 5 x 1 x 0.9x0.45.91x 3 6 3 2 1 8x9x 4(x4)2(x5)3 5 8 1 1 (6x2)x2 6x7(15x)1 7 5 y2 y2 6 1x10(x3)30 4 6 0.7x0.98.68.6x 8(9x5)7