1、七年级数学上册计算题天天练97 5(2m5)8m 4(2m2)(6m4) 7(ab7a)(9a9b) 13(abc2a)2(7a3abc) 9(xy8z)(xy2z) 4(pqpr)(5pqpr) 5 x 1 x 0.3x0.442.8x 3 4 9 8 1 5x5x 8(x5)4(x5)15 5 5 1 3 (9x5)x3 8x5(11x)2 4 5 y2 y2 4 4.5x10(x7)45 2 6 1 2 (24x)(3x5) 5(4x3)13 2 3 2 2 ()()(8) 21(1)3(2) 7 7 8 1 8 ( )( ) 15(11)8(10) 7 4 7 1 (0.5)(10)
2、(2)313 (1)1471 8 1 1 1 ()()0 12(4)2(2 8 2 6 1 4 1 ( )( ) 5(23)10(11) 3 3 2 2 4 ( )(40) (4)342 (1)2560 3 5 (15)(17) 13(16) 9.5(9) 1 1 ()() 174(19) (1)343 9 6 1713(4)(13) 1.6(9.8)(3.9)1 2 1 1 2 4 4 ()() 1.6()(7.1) 9 7 5 5 5 5 (6a2) y5(15c) 8a9(8n6z) (9an)3(5a9c) 6 (610y)z 2(5b4bc9) 5 1 1 (bc)(st) 2(6b
3、x)9(m4p) 9 5 7m(4m7) 3m(2m3p)(4p6m) 5(5b7)3b 10(4x8)(8x6) 2(ab2a)(2a6b) 16(abc6a)8(8a9abc) 2(xy8z)(xy7z) 4(pqpr)(6pqpr) 7 x 1 x 0.8x0.84.13.9x 3 4 3 2 1 6x4x 6(x5)4(x1)4 5 6 1 4 (8x8)x9 8x9(4x)3 4 5 y2 y2 9 4x3.5(x9)35 4 6 1 2 (14x)(2x2) 8(5x8)20 4 3 4 2 ()()(10) 1(3)3(5) 7 7 1 1 10 ( )( ) 10(24)3(1
4、3) 6 2 9 1 (0.2)(100) (3)443 (1)2460 8 1 1 1 ()()0 27(3)2(3 5 8 5 1 8 1 ( )( ) 27(18)7(19) 8 7 7 7 1 ( )(50) (5)212 (1)1286 6 4 (17)(18) 2(15) 9(16.5) 1 1 ()() 35(112) (5)413 8 4 514(12)(19) 5.4(7.9)(4.7)8.6 2 1 1 3 2 2 ()() 8.5()(8.1) 3 6 5 7 5 5 (8a1) z7(64c) 14m4(5b3c) (9mb)5(7a5c) 7 (104z)c 2(9c
5、7bc9) 8 1 1 (yz)(st) 2(8by)4(n6p) 4 4 4x(4x4) x(9x4s)(5sx) 9(5m9)4m 1(8x1)(9x8) 5(ab5a)(2a5b) 13(abc4a)2(5a6abc) 8(xy2z)(xy7z) 8(pqpr)(9pqpr) 7 x 1 x 0.8x0.83.21.1x 9 2 9 8 1 7x7x 5(x4)4(x9)13 7 9 1 1 (4x4)x5 7x3(9x)7 3 5 y1 y3 4 5x3.5(x2)50 2 6 1 2 (14x)(5x5) 3(5x3)9 8 9 2 4 ()()(5) 14(4)3(1) 7 7 1
6、 1 4 ( )( ) 27(10)9(19) 3 8 5 1 (0.6)(900) (4)253 (1)1660 6 1 1 1 ()()0 9(4)3(2 6 5 2 1 1 1 ( )( ) 21(17)1(12) 6 3 2 1 4 ( )(40) (1)332 (1)1050 5 3 (5)(18) 19(5) 4(11.5) 1 1 ()() 130(210) (4)214 5 8 263(4)(20) 0.6(6.5)(0.9)4.8 2 1 1 3 2 6 ()() 6.6()(7.8) 5 8 7 7 5 5 (2x4) x6(69a) 18x2(6b4z) (7xb)3(6
7、x5a) 1 (126x)z 7(2c6xy6) 9 1 1 (xy)(pq) 2(6ax)8(n6p) 5 8 9y(4y5) y(4y2p)(5py) 7(5t8)4t 9(9b6)(6b3) 9(ab4a)(2a9b) 18(abc4a)9(3a8abc) 2(xy2z)(xy2z) 4(pqpr)(6pqpr) 5 x 1 x 0.5x0.10.51.9x 3 8 3 8 1 3x9x 8(x3)9(x2)14 9 5 1 2 (7x6)x7 6x6(14x)7 4 5 y3 y3 1 2x9.5(x5)10 4 6 1 2 (33x)(5x3) 6(9x9)14 4 9 2 6 ()
8、()(6) 29(3)2(4) 7 7 8 1 1 ( )( ) 18(10)7(12) 7 8 9 1 (0.1)(500) (4)433 (1)1390 4 1 1 1 ()()0 6(1)3(4 3 7 4 1 1 9 ( )( ) 7(29)1(19) 7 6 8 1 1 ( )(30) (5)333 (1)1711 7 8 (17)(4) 10(20) 15(22.5) 1 1 ()() 192(127) (1)253 7 9 13(29)(10) 1.4(2)(4.9)2.3 2 1 1 2 8 4 ()() 3.3()(5.8) 9 4 6 7 5 5 (5m9) y4(62b)
9、 7a8(9y7z) (3ay)2(8m4b) 6 (26y)z 7(9c2mn8) 7 1 1 (bc)(ef) 5(7by)7(m3p) 7 8 3y(3y8) y(6y6p)(6p9y) 8(7m6)7m 7(7a6)(5a4) 5(ab7a)(9a9b) 13(abc7a)9(7a4abc) 6(xy9z)(xy7z) 4(pqpr)(5pqpr) 5 x 1 x 0.1x0.35.23.5x 9 2 9 8 1 3x3x 4(x8)8(x7)18 9 3 1 2 (4x3)x9 5x2(12x)3 5 5 y3 y1 8 1.5x9.5(x3)40 4 6 1 2 (13x)(2x4
10、) 4(7x2)16 7 7 2 1 ()()(9) 2(3)3(1) 7 7 1 1 4 ( )( ) 11(27)7(14) 3 2 5 1 (0.1)(40) (5)252 (1)2288 3 1 1 1 ()()0 12(3)3(1 3 2 9 1 5 3 ( )( ) 21(22)4(17) 2 4 4 2 5 ( )(20) (3)432 (1)1702 3 6 (7)(10) 10(2) 8.5(9.5) 1 1 ()() 141(185) (4)254 2 5 1218(9)(1) 0.5(5.5)(4.5)5.6 2 1 1 4 1 8 ()() 4.4()(2.6) 9 2
11、 2 7 5 5 (4a8) x4(49c) 12x7(2b5t) (7xb)4(6a8c) 1 (144x)t 7(6a5mn3) 7 1 1 (ab)(ef) 2(9by)9(m8p) 3 5 9m(7m7) m(3m6d)(3dm) 9(8a8)8a 4(2m2)(8m1) 8(ab2a)(3a8b) 18(abc8a)8(8a2abc) 3(xy5z)(xy7z) 4(pqpr)(8pqpr) 7 x 1 x 0.9x0.11.52.2x 9 8 3 8 1 9x4x 6(x5)2(x4)6 7 2 1 4 (4x3)x3 4x4(14x)3 8 5 y3 y3 2 3x3.5(x1)40 4 5 1 2 (22x)(3x2) 4(5x3)9 6 7 2 5 ()()(5) 23(4)2(1) 7 7 3 1 8 ( )( ) 26(18)5(17) 2 2 9
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