1、有理数计算题专项练习 14 1 1 () () (10)4(3.75) 3 5 1 () 4 (16)4125 7 9 1 ( )( )(3) -1(1640) 8 6 3 (4) 14.5(0.7)0(83.9) 2 (3)(10) 9(11) 9(11) 1 1 () () (7)6(4.75) 8 6 1 () 2 (4)202.5 7 8 9 ( )( )(2) 1(1908) 7 8 1 (18) 7.5(5.1)0(13.1) 2 (3)(12) 9(4) 0.5(17) 1 1 () () (6)4(4.75) 5 3 1 () 12 (4)2250 3 8 4 ( )( )(6
2、) 1(2234) 7 3 17 (10) 16(6.1)0(63) 16 (1)(9) 7(12) 6.5(15) 1 1 () () (1)16(0.25) 8 4 1 () 12 (16)1250 7 1 1 ( )( )(8) 1(2962) 3 6 15 (18) 14(2.2)0(36.5) 14 (3)(14) 5(16) 3.5(16) 1 1 () () (4)6(0.25) 5 7 1 () 8 (12)650 2 1 1 ( )( )(9) -1(1468) 2 4 1 (8) 14.5(1)0(99.6) 2 (5)(19) 5(18) 7.5(6) 1 1 () ()
3、 (1)8(3.5) 6 6 1 () 2 (8)125 4 1 9 ( )( )(4) -1(1719) 6 8 1 (6) 1.5(4.9)0(75.8) 8 (4)(4) 1(18) 10(6) 1 1 () () (4)16(3.75) 4 7 1 () 18 (4)2025 7 1 1 ( )( )(8) 0(1279) 2 4 1 (6) 3.5(5.8)0(12) 2 (9)(2) 3(14) 4.5(1) 1 1 () () (5)8(5) 8 9 1 () 20 (16)8250 4 1 9 ( )( )(5) 0(2841) 6 8 1 (12) 17.5(6)0(44.5
4、) 6 (4)(2) 6(18) 2(20) 1 1 () () (8)14(2.5) 5 4 1 () 4 (8)140.05 2 9 6 ( )( )(4) 1(1339) 8 5 7 (14) 17(8.2)0(12.4) 6 (9)(9) 10(20) 5.5(6) 1 1 () () (1)18(2) 3 2 1 () 8 (20)2012.5 4 5 1 ( )( )(4) -1(1591) 4 2 13 (8) 10.5(0.4)0(47.3) 14 (8)(5) 9(17) 2.5(12) 1 1 () () (2)20(2.25) 6 4 1 () 2 (20)8250 8
5、1 8 ( )( )(3) 0(2668) 7 7 21 (8) 8(9.1)0(54.1) 20 (9)(2) 8(15) 4(8) 1 1 () () (1)6(4.25) 2 5 1 () 14 (20)120.5 7 1 1 ( )( )(2) 1(2734) 7 7 15 (4) 13(1.3)0(53.4) 16 (3)(9) 8(12) 3(9) 1 1 () () (4)10(0.5) 8 7 1 () 20 (20)162.5 4 7 4 ( )( )(3) -1(1063) 6 3 9 (2) 1(3.9)0(23.1) 8 (2)(7) 8(6) 9(8) 1 1 ()
6、() (1)2(2.75) 3 9 1 () 18 (8)42.5 5 1 4 ( )( )(5) 0(2835) 7 3 19 (18) 5(4)0(35.8) 20 (7)(3) 7(8) 6.5(5) 1 1 () () (1)14(0.75) 4 3 1 () 10 (8)1812.5 3 7 9 ( )( )(3) 0(1364) 6 8 1 (12) 1(7.5)0(12.6) 6 (6)(16) 9(5) 6.5(1) 1 1 () () (8)12(4.5) 2 9 1 () 14 (4)20.05 2 4 1 ( )( )(9) -1(1564) 3 8 1 (8) 10(6
7、.4)0(85) 18 (3)(20) 7(11) 8.5(12) 1 1 () () (6)14(2.5) 7 8 1 () 12 (8)1412.5 8 8 1 ( )( )(5) 0(1086) 7 5 3 (4) 14.5(5.5)0(19.3) 4 (2)(19) 6(18) 8.5(4) 1 1 () () (8)18(0.5) 2 3 1 () 10 (20)200.05 3 1 1 ( )( )(9) -1(2764) 5 5 3 (20) 3.5(4.4)0(23.4) 2 (1)(4) 9(11) 5.5(11) 1 1 () () (1)16(2.75) 4 3 1 ()
8、 4 (4)8250 6 3 9 ( )( )(3) -1(1530) 2 8 17 (12) 14(1.7)0(82.9) 18 (4)(5) 1(3) 5.5(13) 1 1 () () (8)10(2) 5 3 1 () 4 (12)4250 7 4 1 ( )( )(7) 0(2214) 3 6 13 (14) 8.5(9.2)0(76.9) 12 (1)(10) 8(17) 5(16) 1 1 () () (2)20(1.25) 6 2 1 () 12 (12)612.5 6 1 8 ( )( )(5) -1(1047) 4 7 17 (18) 4.5(0.7)0(35.8) 18 (10)(5) 5(14) 0.5(6) 1 1 () () (7)12(4) 7 8 1 () 6 (4)20.5 2 9 1 ( )( )(2) -1(2952) 8 7 1 (16) 12(1.7)0(32.3) 20 (4)(19) 4(6) 3.5(2) 1 1 () () (10)10(0.5) 6 6 1 () 10 (20)14250 2 1 4 ( )( )(8) -1(2688) 6 3 9 (16) 2(2.7)0(43.7) 10