1、有理数计算题专项练习 124 1 1 () () (8)6(3.25) 8 5 1 () 18 (20)142.5 5 1 4 ( )( )(6) 1(2553) 8 3 3 (4) 2(3.6)0(34.5) 4 (10)(13) 8(14) 9(14) 1 1 () () (7)14(1.25) 8 5 1 () 6 (20)1412.5 4 9 1 ( )( )(9) 0(2832) 8 2 15 (6) 12(5.1)0(50.6) 14 (1)(6) 6(18) 7.5(1) 1 1 () () (10)12(1.5) 4 4 1 () 16 (12)1212.5 4 1 1 ( )
2、( )(6) 1(2192) 3 8 5 (2) 19(0.7)0(10.6) 4 (5)(10) 8(4) 9.5(17) 1 1 () () (5)8(2.75) 8 4 1 () 12 (4)140.5 2 1 5 ( )( )(4) 1(1295) 5 4 1 (16) 1(9.8)0(64.2) 14 (9)(20) 9(1) 6.5(12) 1 1 () () (4)4(0.75) 6 8 1 () 2 (20)120.5 5 5 1 ( )( )(8) 0(2833) 4 5 3 (18) 6.5(4.6)0(17.8) 4 (4)(16) 5(18) 8.5(14) 1 1 (
3、) () (9)6(3) 7 6 1 () 6 (12)1412.5 6 1 1 ( )( )(10) 0(1831) 2 2 1 (10) 16.5(9.1)0(94.3) 16 (9)(15) 10(3) 1.5(1) 1 1 () () (3)4(4) 2 5 1 () 20 (8)8125 3 6 7 ( )( )(10) 0(1734) 5 6 1 (12) 9(2.3)0(13.2) 2 (5)(11) 7(14) 3.5(3) 1 1 () () (5)8(2.25) 2 3 1 () 14 (12)101.25 8 1 1 ( )( )(7) -1(1099) 5 8 19 (
4、4) 2(4.6)0(84.7) 18 (10)(15) 7(19) 6.5(18) 1 1 () () (3)4(0.5) 4 9 1 () 8 (12)180.5 6 1 1 ( )( )(10) 0(1973) 8 3 13 (6) 11(4.6)0(29.1) 14 (4)(14) 7(12) 10(20) 1 1 () () (10)20(4.75) 8 4 1 () 10 (4)40.125 6 8 3 ( )( )(8) 0(1838) 7 2 13 (10) 3(3)0(62.4) 14 (7)(19) 5(5) 1(11) 1 1 () () (10)8(0.25) 7 7
5、1 () 18 (16)140.5 3 1 1 ( )( )(3) 1(1648) 4 7 19 (20) 15.5(9.1)0(40) 18 (8)(14) 7(3) 1.5(13) 1 1 () () (8)12(0.75) 6 6 1 () 18 (12)1612.5 5 6 6 ( )( )(6) 0(2890) 5 5 5 (8) 12.5(3.2)0(60.1) 4 (1)(17) 1(5) 7.5(14) 1 1 () () (5)18(3.25) 8 2 1 () 10 (20)8125 3 1 8 ( )( )(5) 0(1885) 2 7 11 (16) 3(9.5)0(7
6、2) 12 (3)(20) 10(7) 6(17) 1 1 () () (2)2(0.75) 5 9 1 () 12 (4)81.25 2 1 8 ( )( )(5) -1(2811) 2 7 13 (8) 3.5(5.1)0(24.1) 12 (7)(3) 1(9) 5.5(7) 1 1 () () (6)8(3.25) 7 6 1 () 16 (20)1650 3 1 1 ( )( )(3) -1(1521) 8 3 1 (6) 0.5(6)0(81.5) 18 (8)(7) 6(7) 7.5(12) 1 1 () () (3)8(4.75) 5 7 1 () 20 (12)18125 8
7、 1 8 ( )( )(4) 0(1412) 3 7 17 (16) 4(1.9)0(65.2) 18 (2)(2) 3(7) 8(19) 1 1 () () (9)20(1) 5 5 1 () 4 (16)80.5 6 1 1 ( )( )(5) -1(2713) 3 5 5 (4) 17.5(4.7)0(28.8) 4 (7)(12) 5(18) 4(11) 1 1 () () (1)14(2.25) 7 6 1 () 14 (4)165 8 9 1 ( )( )(9) -1(2877) 8 3 13 (14) 9.5(3)0(82.1) 14 (2)(7) 10(10) 4.5(4) 1
8、 1 () () (1)8(5) 2 5 1 () 6 (16)40.5 2 1 8 ( )( )(6) -1(2202) 5 7 5 (4) 0.5(1.5)0(43.7) 4 (8)(15) 7(13) 4.5(16) 1 1 () () (8)4(3.5) 5 9 1 () 8 (16)40.5 6 4 6 ( )( )(7) -1(2820) 3 5 17 (20) 9(6.8)0(65.2) 16 (3)(4) 4(20) 8(10) 1 1 () () (10)4(3.5) 2 6 1 () 8 (16)200.25 3 7 1 ( )( )(6) 1(1022) 6 5 1 (4) 2.5(2.6)0(41.6) 8 (2)(1) 7(9) 6(9) 1 1 () () (2)8(4.75) 8 4 1 () 6 (4)22.5 3 1 8 ( )( )(7) 0(1725) 2 7 1 (16) 17.5(0.6)0(89.2) 8 (7)(3) 7(19) 7.5(16) 1 1 () () (2)8(5) 6 4 1 () 16 (4)165 2 9 6 ( )( )(6) 1(2654) 8 5 15 (18) 17.5(0.1)0(16.9) 14
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