1、(100) (1)433 (1)2535 3 1 1 1 ()()0 8(2)2(5 8 6 2 1 9 6 ( )( ) 21(22)10(18) 7 8 5 5 1 ( )(70) (3)453 (1)1902 6 4 (-15)(-6) 16(-19) -3.5(-8.5) 1 1 ()() -20-2(-910) (-4)334 9 8 -910(-5)(-17) 4.5(-4.1)(-3.7)0.6 2 1 1 3 2 9 ()() 6.3()(4.7) 3 8 3 7 5 5 (9n1) y5(92a) 4x9(9b9c) (2xb)2(6n5a) 1 (610y)c 8(5c9a
2、b3) 7 (yz)(st) 2(6by)4(m9q) 9 6 4n(5n4) 5n(7n3q)(8q9n) 8(2s9)9s 1(3b7)(9b2) 7(ab5a)(7a7b) 16(abc6a)3(7a3abc) 3(xy6z)(xy4z) 2(pqpr)(7pqpr) 5 x 1 x 0.7x0.45.34x 3 4 9 4 1 7x5x 2(x9)7(x5)20 9 4 1 3 (8x2)x8 7x8(5x)2 7 5 y1 y3 3 0.5x2(x2)45 4 6 1 2 (12x)(3x4) 7(4x2)20 4 3 2 1 ()()(6) 25(4)21 1 1 ( )( ) 1
3、2(10)4(19) 7 6 9 (0.3)(2) (4)242 (1)2028 2 ()()0 6(2)2(2 8 7 2 1 9 5 ( )( ) 20(13)5(11) 7 8 4 1 1 (70) (1)222 (1)2103 2 8 (-3)(-3) 7(-12) -12.5(-3.5)()() -51(-23) (0)252 3 5 -123(-8)(-5) -6(-5.3)(-3)0.3 2 1 1 1 6 8 ()() 5.7()(3.3) 3 3 2 7 5 5 (4b7) x9(14b) 16x4(4n4z) (4xn)9(5b9b) 8 (184x)z 7(2b3xy9) (ab)(ef) 3(6ax)5(n9p) 3 6 3a(6a3) 3a(9a4p)(3pa) 4(7m7)4m 5(7m7)(6m1) 5(ab6a)(2a2b) 14(abc9a)8(9a7abc) 4(xy2z)(xy8z) 7(pqpr)(2pqpr) 7 x 1 x 0.4x0.30.45.8x 9 4 3 2 1 8x2x 5(x5)3(x2)15 7 9 1 4 (3x5)x4 9x3(8x)6 4 5 y1 y1 7 5x1.5(x3)30 (53x)(5x2) 9(8x1)4 2 9