1、有理数计算题专项练习 47 1 1 ( )( )(6) 0(1942) 2 3 7 (4) 12(3.1)0(70.9) 8 (2)(15) 6(4) 7(19) 1 1 () () (7)10(1.75) 3 4 1 () 12 (4)1050 8 4 3 ( )( )(10) 0(2611) 3 2 1 (4) 12.5(2)0(91.3) 8 (9)(20) 3(12) 0.5(4) 1 1 () () (1)18(2.5) 6 5 1 () 4 (16)1812.5 6 6 6 ( )( )(2) 1(1183) 5 5 3 (16) 15.5(3.9)0(38.1) 4 (10)(1
2、3) 7(1) 1.5(5) 1 1 () () (5)16(2.25) 6 6 1 () 2 (16)612.5 8 1 3 ( )( )(4) 1(2548) 8 2 1 (6) 3(6.2)0(45.9) 12 (6)(6) 10(13) 5(12) 1 1 () () (5)10(2.75) 5 6 1 () 18 (8)105 4 1 7 ( )( )(4) 0(2949) 8 6 1 (10) 9(0.6)0(13.7) 4 (6)(12) 4(2) 4.5(17) 1 1 () () (9)2(0.75) 7 3 1 () 6 (4)101.25 3 7 1 ( )( )(9)
3、-1(1054) 6 5 3 (10) 16(6.4)0(44.9) 2 (5)(7) 5(5) 5.5(8) 1 1 () () (4)20(4.5) 4 4 1 () 4 (20)140.125 6 4 1 ( )( )(3) 0(2683) 3 2 3 (8) 10.5(5.5)0(55.2) 2 (9)(17) 10(9) 3.5(16) 1 1 () () (3)10(4) 6 7 1 () 20 (4)85 3 1 1 ( )( )(7) 0(2588) 2 3 17 (14) 8(3.7)0(44.6) 18 (2)(14) 3(14) 4(12) 1 1 () () (7)18
4、(3.5) 8 6 1 () 14 (8)16250 3 7 4 ( )( )(7) -1(1830) 6 3 5 (18) 12(9.1)0(11.1) 4 (2)(7) 7(14) 3.5(17) 1 1 () () (10)2(4) 7 2 1 () 6 (8)10250 6 9 3 ( )( )(10) -1(1889) 8 2 11 (10) 11.5(6.9)0(90.4) 12 (2)(5) 4(2) 8(17) 1 1 () () (10)2(4.5) 2 4 1 () 10 (12)80.5 7 9 8 ( )( )(3) -1(1286) 8 7 17 (4) 9.5(3.
5、3)0(38.5) 16 (2)(16) 7(8) 8(18) 1 1 () () (1)14(5) 5 7 1 () 18 (12)20250 2 4 1 ( )( )(6) -1(1632) 3 2 11 (18) 12.5(9.7)0(38.9) 12 (1)(14) 1(2) 1(10) 1 1 () () (4)18(5) 3 5 1 () 6 (4)450 7 5 4 ( )( )(10) 1(2110) 4 3 7 (12) 12(7)0(71.7) 6 (8)(1) 9(2) 8(3) 1 1 () () (8)20(1) 8 6 1 () 16 (20)182.5 7 1 1
6、 ( )( )(8) 0(2470) 8 8 7 (6) 16(7.3)0(51.5) 8 (1)(12) 7(4) 1.5(1) 1 1 () () (2)12(2.5) 7 2 1 () 20 (20)80.05 4 1 1 ( )( )(8) 1(2426) 6 2 17 (10) 7(2.9)0(81.9) 18 (8)(15) 3(12) 9.5(3) 1 1 () () (10)12(2.5) 3 9 1 () 2 (20)165 2 3 1 ( )( )(5) 0(1269) 2 6 11 (14) 1.5(3.6)0(97.3) 10 (9)(9) 3(7) 8(8) 1 1
7、() () (7)16(2.75) 6 5 1 () 8 (16)18125 8 1 8 ( )( )(10) 1(1226) 7 7 21 (14) 16.5(5.3)0(17.1) 20 (6)(9) 2(20) 3.5(12) 1 1 () () (6)16(3.75) 2 3 1 () 6 (20)1250 2 1 1 ( )( )(6) 1(1507) 2 2 3 (10) 17(2.6)0(80.6) 4 (2)(7) 4(17) 7.5(20) 1 1 () () (1)8(4.25) 7 4 1 () 4 (16)22.5 4 6 1 ( )( )(10) -1(2536) 5
8、 3 19 (6) 7(2.6)0(64) 18 (1)(19) 8(15) 1.5(20) 1 1 () () (6)4(1.75) 5 2 1 () 8 (16)1612.5 5 4 4 ( )( )(8) 0(2509) 3 3 1 (2) 14.5(8)0(71.9) 6 (2)(19) 9(12) 9(2) 1 1 () () (10)14(5) 6 9 1 () 2 (12)82.5 6 4 3 ( )( )(8) -1(1631) 3 2 21 (14) 5.5(4.5)0(77.3) 20 (10)(9) 8(8) 9(14) 1 1 () () (5)4(1.75) 8 6 1 () 8 (8)8250 3 3 3 ( )( )(4) 0(1573) 2 2 11 (8) 20(8.3)0(59.8) 12 (8)(16) 8(1) 0.5(2) 1 1 () () (8)16(0.25) 5 6 1 () 6 (4)60.25 5 3 6 ( )( )(9) 1(2148) 2 5 1 (16) 5.5(7.6)0(45.9) 18 (5)(1) 3(6) 8(6) 1 1 () () (10)4(4.75) 3 7