1、 1 (0.6)(200) (3)213 (1)1337 2 1 1 1 ()()0 5(3)2(2 9 5 7 1 5 1 ( )( ) 8(25)10(16) 8 6 8 1 1 ( )(60) (1)433 (1)1711 6 3 (-4)(-3) 10(-3) 2.5(-9.5) 1 1 ()() 174(-43) (-3)242 6 8 -232(-21)(-21) -7.8(-1.4)(-0.1)4.5 2 1 1 2 4 9 ()() 1.4()(8.7) 9 4 8 7 5 5 (8y2) x2(27c) 11m4(8b9t) (6mb)2(8y9c) 1 (102x)t 9(
2、6b5bc8) 8 (xy)(mn) 4(8ax)7(n4q) 3 8 2y(8y8) 7y(9y4z)(4z9y) 9(9b3)6b 7(2n10)(7n2) 9(ab9a)(5a3b) 17(abc7a)6(3a3abc) 2(xy4z)(xy6z) 4(pqpr)(8pqpr) 7 x 1 x 0.3x0.95.75.4x 9 2 3 8 1 6x3x 9(x5)9(x7)1 9 7 1 4 (3x6)x1 5x8(6x)5 3 5 y3 y2 3 1x9(x2)50 3 6 1 2 (53x)(4x3) 9(2x5)11 4 3 2 2 ()()(6) 15(2)2(1) 1 1 1
3、( )( ) 3(16)1(13) 9 8 5 (100) (1)243 (1)1731 8 ()0 14(1)2(4 5 4 6 1 2 8 ( )( ) 6(20)4(14) 4 3 7 8 6 ( )(100) (1)253 (1)2639 7 7 (-18)(-8) 10(-3) -3(-9.5)() -64(-128) (-4)442 8 2 -397(-1)(-29) -0.6(-6.5)(-5)9.3 2 1 1 4 7 7 ()() 7.9()(2.8) 3 6 2 7 5 5 (3m2) x8(66b) 3x5(6n7t) (2xn)7(3m9b) 6 (66x)t 4(4c7xy6) 7 (yz)(pq) 5(6ay)2(m7q) 6 9 4a(4a7) a(4a4s)(4s5a) 9(4a7)2a 6(6b5)(4b5) 2(ab8a)(5a7b) 4(abc2a)3(7a8abc) 6(xy7z)(xy5z) 3(pqpr)(9pqpr) x 0.1x0.78.93.8x 3 2 3 2x2x 6(x1)8(x5)14 7 5 1 3 (6x9)x9 8x4(5x)8 4 5 y2 y2 3 3x5.5(x6)20 2 5 (12x)(2x4) 3(8x4)11 7 9