1、初一数学上册计算题专项训练94 6 1 ()()(4) 30(4)3(4) 7 7 1 1 4 ( )( ) 24(23)1(13) 6 8 3 1 (0.4)(5) (1)432 (1)2284 6 1 1 1 ()()0 21(3)3(5 2 6 4 1 5 1 ( )( ) 2(16)5(16) 6 6 6 1 1 ( )(90) (1)252 (1)2205 3 4 (7)(3) 14(14) 2(23) 1 1 ()() 144(134) (3)242 2 3 249(20)(28) 0.8(8.2)(4.5)4.2 2 1 1 3 2 3 ()() 8.8()(5.5) 3 7 5
2、 5 5 5 (8a9) z4(33c) 6a6(3y7t) (7ay)8(6a8c) 5 (122z)t 5(4b5bc4) 6 1 1 (xy)(mn) 3(6ay)7(n5q) 5 3 3a(7a5) 4a(6a2d)(7da) 8(6s6)8s 8(7x5)(8x7) 8(ab7a)(7a4b) 11(abc3a)3(8a5abc) 7(xy8z)(xy9z) 4(pqpr)(3pqpr) 7 x 1 x 0.6x0.45.82.1x 9 2 9 2 1 3x1x 3(x4)4(x9)20 3 9 1 4 (6x8)x1 5x7(4x)8 7 5 y1 y1 5 0.5x9(x3)35
3、 4 5 0.2x0.74.84.7x 7(4x6)3 3 2 ()()(2) 17(3)3(2) 7 7 3 1 4 ( )( ) 20(10)10(16) 2 2 5 1 (0.8)(700) (4)242 (1)2732 6 1 1 1 ()()0 27(1)2(1 9 6 7 1 4 3 ( )( ) 15(23)5(16) 7 5 4 1 2 ( )(100) (2)443 (1)2877 5 3 (6)(1) 20(17) 8.5(5) 1 1 ()() 92(59) (4)224 2 6 2415(18)(18) 7.9(9.8)(1.2)4.6 2 1 1 1 2 2 ()()
4、 8.4()(1.4) 5 2 7 5 5 5 (8x9) z9(98a) 8a5(8y5t) (8ay)8(6x8a) 8 (206z)t 2(9d2bc2) 7 1 1 (ab)(pq) 3(7ay)8(n4q) 9 6 9a(2a5) 2a(7a2z)(2z3a) 3(5m7)6m 4(2x8)(8x7) 4(ab9a)(7a7b) 17(abc4a)9(8a4abc) 8(xy7z)(xy4z) 9(pqpr)(3pqpr) 5 x 1 x 0.2x0.26.69.2x 3 4 6 8 1 3x1x 5(x7)9(x9)14 7 6 1 3 (7x6)x6 4x2(6x)3 5 5 y
5、3 y2 4 1x6(x1)45 3 6 0.9x0.26.47.6x 4(7x2)19 6 1 ()()(7) 15(1)2(2) 7 7 1 1 1 ( )( ) 5(22)4(12) 2 4 5 1 (0.4)(100) (1)242 (1)2287 3 1 1 1 ()()0 2(1)3(3 8 9 7 1 6 8 ( )( ) 16(25)5(14) 4 7 7 9 3 ( )(60) (1)222 (1)2487 8 4 (7)(13) 12(15) 8(17.5) 1 1 ()() 13(158) (5)214 5 3 172(3)(24) 7.8(5.7)(3.4)3.8 2
6、1 1 2 3 8 ()() 1.9()(3.2) 3 2 8 7 5 5 (8y5) x8(37c) 11m7(5n8t) (5mn)5(8y4c) 1 (86x)t 5(2a6bc4) 5 1 1 (xy)(st) 4(8ay)6(m8p) 2 9 2y(3y1) y(8y7d)(7d6y) 4(9t5)4t 4(5m5)(8m4) 4(ab2a)(3a5b) 11(abc7a)2(3a2abc) 9(xy6z)(xy5z) 7(pqpr)(4pqpr) 5 x 1 x 0.7x0.23.87.9x 3 2 9 4 1 2x5x 6(x8)3(x3)4 7 2 1 4 (9x2)x6 3x
7、6(2x)3 6 5 y2 y1 3 5x2(x8)40 2 6 0.4x0.34.38.7x 5(6x8)8 4 5 ()()(9) 26(4)2(5) 7 7 1 1 8 ( )( ) 7(16)3(11) 5 2 7 1 (0.4)(7) (3)422 (1)1950 3 1 1 1 ()()0 22(2)3(5 9 9 6 1 6 2 ( )( ) 15(20)5(13) 5 5 3 1 1 ( )(40) (3)252 (1)2642 5 5 (7)(14) 13(15) 13(24) 1 1 ()() 135(125) (5)313 5 4 173(14)(21) 4.4(6.2)
8、(2.6)2.2 2 1 1 1 7 3 ()() 2.3()(9.8) 5 8 6 7 5 5 (2m4) x9(12b) 15m3(3y5t) (8my)4(5m8b) 1 (124x)t 3(8a6mn3) 3 1 1 (yz)(mn) 3(8by)7(n4p) 5 2 6y(3y6) y(3y5d)(3dy) 3(5s1)8s 6(8x2)(2x7) 4(ab2a)(9a5b) 19(abc4a)2(5a5abc) 6(xy5z)(xy9z) 9(pqpr)(4pqpr) 7 x 1 x 0.8x0.85.60.7x 3 8 9 4 1 5x1x 9(x1)9(x2)1 7 8 1 3
9、 (5x6)x2 3x2(4x)8 2 5 y1 y3 7 3x10(x2)15 4 6 0.5x0.15.70.1x 4(4x9)9 1 4 ()()(1) 1(4)2(1) 7 7 6 1 1 ( )( ) 21(27)4(15) 5 6 7 1 (0.9)(200) (3)443 (1)2343 6 1 1 1 ()()0 8(2)3(2 9 6 4 1 1 1 ( )( ) 8(19)1(15) 3 4 6 9 1 ( )(80) (3)312 (1)2691 8 7 (1)(12) 13(18) 9.5(20) 1 1 ()() 163(148) (2)443 3 9 82(5)(8
10、) 3(6.8)(3.9)8.3 2 1 1 4 7 6 ()() 7.8()(4.3) 9 4 4 7 5 5 (4x7) x2(66a) 17x7(4b6t) (7xb)2(7x7a) 1 (26x)t 7(7c8ab9) 3 1 1 (bc)(ef) 5(6bx)9(n4q) 8 6 7b(8b8) b(8b7d)(6d2b) 9(8m3)8m 8(4m8)(6m5) 3(ab9a)(4a3b) 6(abc8a)2(7a3abc) 4(xy5z)(xy2z) 4(pqpr)(8pqpr) 5 x 1 x 0.8x0.120.2x 3 4 6 2 1 9x1x 6(x4)8(x9)14 7 3 1 3 (7x1)x3 6x5(7x)7 8 5 y2 y3 4 5x2(x6)45 2 5 0.3x0.37.45.3x 5(7x3)15
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