1、有理数计算题专项练习 413 (2) 12(8.6)0(76) 4 (6)(9) 4(12) 2(17) 1 1 () () (9)16(3) 6 8 1 () 2 (20)180.05 5 6 5 ( )( )(7) 1(1051) 5 4 11 (16) 1(3)0(87.8) 12 (9)(11) 9(1) 0.5(11) 1 1 () () (4)12(1) 4 5 1 () 20 (20)120.05 2 1 3 ( )( )(4) 1(2537) 6 2 1 (20) 10(3.8)0(29.7) 10 (3)(3) 6(13) 8.5(12) 1 1 () () (7)20(3)
2、 5 7 1 () 16 (8)40.05 4 1 9 ( )( )(2) 0(2980) 7 8 15 (12) 15(4.2)0(56.2) 16 (4)(12) 7(15) 5.5(8) 1 1 () () (3)16(1.5) 8 2 1 () 20 (12)10125 6 1 1 ( )( )(2) -1(1465) 6 6 13 (12) 7(9.6)0(48.6) 14 (8)(20) 10(13) 1.5(7) 1 1 () () (3)14(4.25) 3 9 1 () 20 (8)1450 5 8 1 ( )( )(5) -1(1131) 7 2 1 (12) 2(2.7)
3、0(47.1) 20 (5)(9) 2(7) 9.5(9) 1 1 () () (4)6(1.75) 5 6 1 () 18 (4)20.05 2 1 9 ( )( )(5) 0(1104) 5 8 1 (14) 17(1.9)0(66.9) 8 (10)(13) 9(2) 8.5(13) 1 1 () () (8)4(3.5) 6 4 1 () 20 (20)200.25 7 9 1 ( )( )(2) -1(1191) 8 4 1 (4) 16.5(3.3)0(59.5) 20 (8)(7) 6(8) 8(17) 1 1 () () (3)2(2.75) 2 4 1 () 2 (8)812
4、5 2 1 6 ( )( )(5) 0(2669) 8 5 15 (8) 18.5(8.2)0(54.2) 14 (6)(7) 6(12) 5.5(4) 1 1 () () (9)20(0.5) 6 5 1 () 2 (4)40.125 5 1 3 ( )( )(7) -1(1060) 5 2 21 (12) 20(5.9)0(90.7) 20 (2)(7) 4(15) 3.5(19) 1 1 () () (10)14(3) 4 6 1 () 12 (12)140.25 5 1 6 ( )( )(10) 1(1913) 2 5 1 (8) 9(9.8)0(79) 8 (5)(14) 2(12)
5、 3.5(15) 1 1 () () (6)2(2.75) 6 7 1 () 14 (20)65 4 1 9 ( )( )(6) -1(1010) 2 8 11 (8) 14(0.4)0(34.1) 12 (10)(1) 9(3) 3(1) 1 1 () () (3)4(2.25) 7 7 1 () 20 (16)850 8 1 9 ( )( )(7) 0(2842) 5 8 3 (4) 4.5(1.8)0(27.7) 4 (10)(3) 3(20) 8(20) 1 1 () () (1)10(5) 4 8 1 () 2 (20)6250 6 1 1 ( )( )(2) 0(2659) 4 6
6、 13 (18) 2.5(2.3)0(94.1) 12 (2)(6) 6(3) 3.5(4) 1 1 () () (2)8(1.25) 5 9 1 () 12 (16)4125 4 1 1 ( )( )(8) -1(2152) 4 6 11 (6) 3(6.8)0(65) 10 (6)(13) 4(5) 1.5(20) 1 1 () () (2)12(1.25) 7 5 1 () 12 (16)4125 3 1 9 ( )( )(5) 1(1384) 4 8 1 (6) 19(2.3)0(83.9) 12 (4)(10) 3(12) 10(2) 1 1 () () (10)4(4.25) 6
7、7 1 () 2 (4)122.5 3 1 1 ( )( )(5) 0(1653) 3 3 1 (20) 3.5(9.6)0(38.3) 20 (8)(5) 3(2) 7.5(6) 1 1 () () (8)20(2) 3 9 1 () 20 (20)100.25 3 1 3 ( )( )(4) 1(2921) 2 2 17 (16) 15(7)0(52.8) 18 (2)(3) 9(9) 9(7) 1 1 () () (3)10(3.75) 2 5 1 () 18 (12)105 8 1 1 ( )( )(2) 1(1702) 2 2 15 (6) 19(2.3)0(46.9) 14 (7)
8、(5) 3(8) 4.5(10) 1 1 () () (10)12(2.5) 4 2 1 () 4 (12)62.5 4 1 1 ( )( )(9) 1(1390) 6 5 19 (12) 4(4.9)0(22.1) 20 (1)(9) 6(3) 6.5(20) 1 1 () () (9)10(3.5) 3 6 1 () 10 (12)10250 7 1 1 ( )( )(9) 0(2630) 4 5 7 (10) 19.5(9.2)0(59.8) 6 (1)(2) 3(5) 1(19) 1 1 () () (4)14(2.25) 6 8 1 () 6 (4)62.5 5 5 1 ( )( )(2) -1(1381) 4 3 1 (14) 8.5(6.1)0(72.2) 4 (7)(6) 1(1) 7(12) 1 1 () () (1)6(0.25) 5 7 1 () 10 (4)162.5 8 1 9 ( )( )(7) -1(2519) 8 8 21 (20) 2(1.3)0(89.1) 20 (1)(17) 5(19) 3(1) 1 1 () () (8)18(2.25) 8 9 1 () 20 (8)1425 7