1、初一数学上册计算题专项训练52 1 2 ()()(1) 9(4)2(5) 7 7 1 1 8 ( )( ) 30(22)10(20) 9 6 7 1 (0.1)(8) (4)452 (1)1393 2 1 1 1 ()()0 5(3)2(5 6 6 6 1 1 3 ( )( ) 12(10)6(15) 8 4 2 4 1 ( )(60) (3)333 (1)2316 3 6 (10)(20) 20(15) 6.5(20) 1 1 ()() 102(18) (0)243 6 8 620(27)(12) 6(5.9)(0.9)3.1 2 1 1 4 6 9 ()() 8.1()(1.7) 3 6
2、9 7 5 5 (7b5) y6(38a) 3a4(6b2c) (4ab)8(3b6a) 1 (126y)c 6(2b4bc7) 4 1 1 (yz)(mn) 4(9ax)3(m5p) 9 8 6x(9x9) 7x(9x4c)(4cx) 6(2a8)6a 5(8n8)(9n6) 3(ab9a)(5a9b) 9(abc9a)7(8a7abc) 4(xy6z)(xy6z) 6(pqpr)(3pqpr) 5 x 1 x 0.1x0.50.11.9x 3 4 3 4 1 7x1x 9(x8)7(x8)15 9 9 1 1 (7x6)x5 7x7(16x)9 7 5 y1 y2 4 4.5x5.5(x9
3、)15 3 6 0.6x0.22.51x 8(8x6)17 6 5 ()()(3) 22(2)2(5) 7 7 1 1 10 ( )( ) 26(18)8(15) 2 4 9 1 (0.2)(9) (4)413 (1)1032 3 1 1 1 ()()0 14(3)3(3 2 2 2 1 3 7 ( )( ) 11(15)5(19) 8 2 8 1 5 ( )(80) (5)333 (1)2814 6 4 (8)(17) 18(2) 10.5(8) 1 1 ()() 84(210) (3)253 2 2 3712(23)(24) 2.4(9.8)(4.7)10 2 1 1 2 3 6 ()()
4、 7.8()(5.5) 3 6 8 5 5 5 (7m7) x2(82c) 20a6(2y2z) (3ay)3(7m9c) 1 (182x)z 4(8d2xy1) 5 1 1 (bc)(st) 4(8ay)9(n8p) 2 7 8y(4y4) 5y(7y5c)(9cy) 8(9n9)8n 4(5x3)(9x8) 4(ab2a)(6a4b) 10(abc2a)7(5a9abc) 5(xy4z)(xy9z) 4(pqpr)(9pqpr) 5 x 1 x 0.1x0.27.32.3x 6 6 6 4 1 3x7x 8(x1)3(x6)1 9 4 1 2 (4x8)x9 6x4(13x)1 6 5 y
5、2 y3 5 3x9.5(x9)40 3 5 0.1x0.92.42.2x 7(7x6)5 4 2 ()()(4) 26(2)3(3) 7 7 8 1 1 ( )( ) 19(13)7(19) 9 4 3 1 (0.2)(100) (3)342 (1)1026 6 1 1 1 ()()0 24(3)2(4 5 4 3 1 8 5 ( )( ) 12(27)4(15) 8 7 6 4 1 ( )(10) (2)242 (1)2667 3 6 (15)(6) 1(17) 7.5(3.5) 1 1 ()() 191(56) (1)344 6 5 248(7)(1) 10(5.1)(2.6)1.5 2
6、 1 1 4 4 4 ()() 6.5()(7.3) 3 5 5 5 5 5 (5b9) x5(36c) 11m9(9b8z) (8mb)4(3b9c) 4 (82x)z 7(5b5mn6) 3 1 1 (xy)(ef) 2(8by)5(m9q) 9 5 4y(8y7) y(9y4c)(6c4y) 3(3t5)7t 4(4y8)(6y2) 7(ab4a)(2a4b) 11(abc2a)9(6a8abc) 9(xy7z)(xy9z) 7(pqpr)(3pqpr) 7 x 1 x 0.9x0.29.11.3x 3 6 6 8 1 7x7x 7(x7)3(x4)14 7 3 1 2 (5x5)x2
7、4x5(18x)8 7 5 y1 y1 5 1x6.5(x4)40 3 6 0.8x0.80.70.8x 7(2x1)3 3 6 ()()(10) 8(3)3(1) 7 7 8 1 1 ( )( ) 12(16)2(19) 7 6 5 1 (0.2)(200) (4)423 (1)1019 4 1 1 1 ()()0 5(4)3(4 4 7 3 1 6 1 ( )( ) 25(16)1(12) 3 7 4 1 1 ( )(60) (1)343 (1)1144 5 2 (17)(4) 19(9) 8(5) 1 1 ()() 165(206) (5)342 2 4 2218(14)(25) 7.3
8、(4.2)(3.8)5.5 2 1 1 2 3 7 ()() 4.4()(8.7) 7 9 2 7 5 5 (7n5) x7(54c) 18x6(8b6c) (8xb)3(6n5c) 7 (106x)c 9(4d8xy4) 8 1 1 (bc)(pq) 3(8bx)6(m2q) 5 6 7y(5y6) 4y(6y8s)(2sy) 2(4b2)3b 3(3a6)(3a10) 5(ab7a)(9a4b) 14(abc2a)9(7a3abc) 2(xy8z)(xy2z) 6(pqpr)(8pqpr) 5 x 1 x 0.6x0.48.19.9x 6 6 6 8 1 6x7x 2(x3)4(x8)12
9、 7 6 1 1 (2x9)x7 3x6(12x)5 9 5 y3 y2 3 0.5x5.5(x5)50 3 6 0.3x0.20.79.9x 2(8x5)6 3 1 ()()(2) 24(1)2(5) 7 7 1 1 8 ( )( ) 12(27)1(12) 2 2 7 1 (0.1)(10) (1)423 (1)2063 5 1 1 1 ()()0 12(3)3(5 6 9 5 1 4 1 ( )( ) 23(25)3(19) 7 5 3 4 4 ( )(100) (2)252 (1)1913 3 5 (5)(13) 5(17) 1(11) 1 1 ()() 131(101) (4)443
10、 8 4 3915(20)(9) 7.3(4.6)(2.9)6.2 2 1 1 4 8 4 ()() 9.2()(2.1) 9 8 6 5 5 5 (8a5) z3(96c) 20x9(9b6t) (5xb)3(2a4c) 1 (146z)t 2(4c3mn9) 3 1 1 (yz)(st) 4(6ay)6(n8q) 5 3 7a(6a1) a(4a4p)(8p2a) 7(7n1)3n 1(7a9)(9a4) 7(ab7a)(6a4b) 12(abc5a)7(2a2abc) 7(xy9z)(xy8z) 4(pqpr)(6pqpr) 5 x 1 x 0.6x0.93.47.1x 3 6 3 8 1 8x5x 6(x1)6(x9)16 7 4 1 2 (7x4)x9 2x4(6x)3 6 5 y2 y2 9 0.5x7.5(x7)5 4 5 0.7x0.10.25.4x 8(2x2)17
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