1、有理数计算题专项练习 72 1 1 ( )( )(7) -1(2976) 2 3 5 (16) 3(5.8)0(68.7) 6 (5)(16) 6(18) 2(7) 1 1 () () (7)18(4) 7 8 1 () 18 (8)161.25 7 4 9 ( )( )(10) -1(1629) 3 8 1 (20) 15(8.8)0(12.9) 2 (1)(10) 10(16) 8(11) 1 1 () () (5)20(3.75) 3 8 1 () 4 (20)21.25 2 6 1 ( )( )(8) 1(2408) 5 5 1 (8) 17(0.8)0(98.5) 16 (10)(2
2、0) 7(1) 1.5(13) 1 1 () () (5)20(4.75) 8 5 1 () 8 (12)6250 7 1 1 ( )( )(7) 0(2737) 7 8 1 (12) 16(6.8)0(86) 8 (2)(20) 10(3) 9(10) 1 1 () () (3)2(4.5) 7 6 1 () 8 (8)6250 2 3 1 ( )( )(7) 0(2938) 2 6 21 (6) 1.5(8.7)0(67.9) 20 (7)(19) 9(9) 7.5(17) 1 1 () () (6)12(2.75) 7 7 1 () 4 (20)1212.5 7 1 1 ( )( )(8
3、) 0(1749) 5 6 19 (2) 15.5(3.7)0(44.4) 20 (5)(9) 6(19) 9(4) 1 1 () () (9)14(4) 8 6 1 () 4 (4)1412.5 5 1 5 ( )( )(2) -1(1861) 3 4 17 (16) 16.5(3)0(63) 18 (6)(12) 5(6) 0.5(6) 1 1 () () (2)10(1) 7 8 1 () 18 (8)14125 4 9 6 ( )( )(6) -1(1677) 8 5 7 (6) 18.5(2.8)0(79.1) 6 (2)(3) 2(5) 8.5(6) 1 1 () () (5)2(
4、4.5) 7 2 1 () 4 (16)181.25 2 1 1 ( )( )(7) 0(2555) 7 2 1 (10) 15(3.5)0(19.5) 8 (4)(15) 6(8) 1(15) 1 1 () () (3)6(1.75) 3 7 1 () 8 (8)100.125 2 4 1 ( )( )(4) 1(2462) 3 6 17 (18) 6(2)0(20.9) 18 (9)(3) 2(16) 9(16) 1 1 () () (4)2(5) 6 6 1 () 12 (4)20125 7 5 1 ( )( )(10) 1(2537) 4 2 1 (20) 4.5(1.8)0(44.3
5、) 20 (4)(19) 3(19) 5.5(13) 1 1 () () (3)8(0.75) 2 9 1 () 18 (8)225 7 3 1 ( )( )(3) 1(2176) 2 3 1 (14) 5.5(5.5)0(57.6) 10 (3)(14) 1(17) 6.5(19) 1 1 () () (8)6(4.25) 4 6 1 () 4 (16)60.25 6 1 1 ( )( )(5) -1(2505) 3 7 19 (4) 12(4.4)0(22.1) 18 (2)(2) 1(19) 10(18) 1 1 () () (3)4(3.25) 7 5 1 () 12 (20)2012
6、5 3 1 7 ( )( )(10) -1(1066) 2 6 1 (10) 15.5(4.2)0(26.9) 10 (9)(11) 8(2) 10(10) 1 1 () () (7)14(4.75) 2 6 1 () 18 (12)250 6 1 1 ( )( )(6) -1(1420) 3 5 7 (16) 11.5(8.4)0(83.4) 8 (6)(17) 6(17) 1(13) 1 1 () () (10)4(3.25) 7 3 1 () 14 (12)20.05 4 1 1 ( )( )(8) 1(1819) 3 3 1 (4) 14(5.2)0(43.7) 6 (5)(7) 7(
7、2) 5(7) 1 1 () () (2)8(5) 7 8 1 () 12 (8)1450 6 1 9 ( )( )(9) 1(2327) 2 8 11 (2) 5(7.8)0(77) 12 (9)(11) 9(1) 2.5(5) 1 1 () () (10)8(3) 4 9 1 () 18 (8)80.05 4 5 3 ( )( )(2) 0(2569) 4 2 13 (2) 11(6.9)0(60.2) 14 (7)(14) 2(19) 8.5(13) 1 1 () () (1)8(0.75) 5 7 1 () 16 (16)120.5 4 1 6 ( )( )(8) 1(2060) 3
8、5 17 (20) 19(4.5)0(32.2) 16 (2)(17) 1(9) 3.5(19) 1 1 () () (4)2(1.5) 2 9 1 () 4 (12)20250 6 1 8 ( )( )(7) 0(2529) 4 7 1 (12) 4.5(0.5)0(81.8) 4 (5)(9) 6(18) 4.5(13) 1 1 () () (2)12(3.5) 2 2 1 () 14 (8)200.05 7 1 9 ( )( )(9) 1(1557) 5 8 1 (18) 8(9.5)0(22.7) 10 (9)(11) 4(5) 2.5(10) 1 1 () () (7)8(0.25) 8 8 1 () 12 (20)18250 2 1 4 ( )( )(6) 1(1451) 2 3 9 (16) 17(7.3)0(83.9) 8 (2)(13) 9(15) 2.5(4) 1 1 () () (2)16(1.25) 2 4 1 () 4 (20)20.25 3 1 1 ( )( )(6) 1(2001) 8 8 1 (14) 18.5(3.4)0(64.6) 16 (1)(17) 1(16) 0.5(16) 1 1 () () (6)6(2.75) 2 6