1、有理数计算题专项练习 7 3 8 ( )( )(2) -1(2111) 2 7 19 (6) 15.5(1)0(38.7) 18 (4)(18) 4(4) 3(12) 1 1 () () (8)20(2.5) 4 3 1 () 2 (4)182.5 2 1 1 ( )( )(6) 1(1288) 3 3 21 (4) 13.5(7.7)0(53) 20 (10)(3) 10(9) 7(20) 1 1 () () (6)2(1) 2 9 1 () 8 (8)200.05 5 1 1 ( )( )(7) 1(1872) 7 2 15 (6) 11(1.8)0(60) 16 (9)(11) 10(1
2、6) 9.5(16) 1 1 () () (6)18(2.75) 4 9 1 () 8 (20)100.05 7 3 1 ( )( )(7) 1(1187) 2 5 1 (20) 10(8.2)0(53.2) 18 (6)(11) 1(12) 6(13) 1 1 () () (6)6(4.75) 5 5 1 () 16 (4)2050 4 7 9 ( )( )(9) 1(2908) 6 8 1 (18) 9(1.6)0(50) 2 (6)(14) 9(20) 9(2) 1 1 () () (9)8(2.25) 2 7 1 () 12 (8)650 2 1 1 ( )( )(7) 0(2051)
3、 5 5 19 (8) 7.5(3.6)0(62.7) 18 (7)(3) 6(14) 2(16) 1 1 () () (5)14(0.75) 6 6 1 () 18 (16)160.5 2 4 8 ( )( )(7) 1(1357) 3 7 17 (14) 2.5(0.7)0(85.1) 16 (10)(4) 8(8) 4.5(7) 1 1 () () (9)10(1) 8 8 1 () 2 (20)1025 2 1 1 ( )( )(5) 0(2329) 8 6 1 (14) 18(8.7)0(69.3) 6 (8)(1) 8(14) 10(11) 1 1 () () (7)16(3.25
4、) 2 8 1 () 4 (8)18250 8 1 1 ( )( )(6) 0(1129) 7 2 11 (6) 1.5(2.6)0(56.6) 12 (1)(20) 10(12) 2(4) 1 1 () () (3)12(0.5) 8 8 1 () 12 (4)20.05 3 5 6 ( )( )(2) -1(2014) 4 5 3 (16) 16(4.1)0(12.8) 2 (4)(2) 3(16) 8(19) 1 1 () () (6)14(0.75) 6 7 1 () 18 (20)200.05 8 1 1 ( )( )(4) 0(2635) 3 2 15 (2) 12.5(7.7)0
5、(83.8) 16 (4)(20) 5(2) 3.5(12) 1 1 () () (7)16(0.5) 2 4 1 () 4 (16)80.25 7 7 3 ( )( )(6) 0(1766) 6 2 1 (20) 20(3.2)0(65) 20 (10)(8) 6(11) 0.5(3) 1 1 () () (2)14(3) 7 5 1 () 2 (4)60.25 4 3 8 ( )( )(8) -1(1650) 2 7 1 (16) 15(5.6)0(80.5) 10 (3)(10) 5(3) 7(12) 1 1 () () (2)16(2.25) 4 8 1 () 20 (16)1612.
6、5 7 4 9 ( )( )(9) 0(2261) 3 8 3 (6) 15(6.4)0(25.4) 4 (3)(7) 4(18) 5.5(5) 1 1 () () (8)16(4.25) 5 9 1 () 16 (8)1425 2 6 8 ( )( )(2) 1(1277) 5 7 1 (20) 9(9.4)0(45.5) 12 (10)(8) 9(2) 3.5(2) 1 1 () () (9)6(3.75) 4 7 1 () 4 (4)14125 6 1 5 ( )( )(10) 1(1243) 5 4 13 (10) 12.5(6.6)0(76.9) 14 (3)(8) 9(5) 2(1
7、6) 1 1 () () (2)2(5) 8 4 1 () 2 (20)8125 2 3 7 ( )( )(2) 0(1879) 2 6 1 (14) 13.5(1.6)0(21.8) 10 (4)(16) 6(17) 1(10) 1 1 () () (2)2(0.75) 3 7 1 () 6 (16)22.5 5 1 1 ( )( )(9) 1(2081) 8 5 1 (2) 8.5(1.6)0(60.1) 8 (7)(9) 10(15) 8(12) 1 1 () () (1)6(5) 7 4 1 () 8 (8)141.25 7 4 3 ( )( )(2) -1(1022) 3 2 1 (
8、2) 15(1.7)0(12.5) 12 (2)(11) 5(4) 6.5(16) 1 1 () () (4)4(5) 4 5 1 () 18 (8)80.5 6 1 1 ( )( )(2) 1(2568) 6 5 1 (6) 13(1.1)0(69.8) 12 (8)(9) 7(13) 0.5(4) 1 1 () () (4)4(4.25) 7 2 1 () 16 (4)45 7 1 5 ( )( )(4) 0(2235) 4 4 17 (6) 19.5(8.8)0(82.3) 18 (9)(13) 4(8) 6(4) 1 1 () () (3)18(5) 4 5 1 () 2 (8)200.05 7 1 9 ( )( )(4) 1(1278) 6 8 9 (20) 2.5(3.7)0(89.4) 8 (6)(3) 5(5) 3.5(20) 1 1 () () (1)20(1.75) 2 9 1 () 8 (8)101.25 8 1 3 ( )( )(3) -1(1728) 5 2 7 (2) 8(5.9)0(86.6) 8 (9)(20) 2(3) 3.5(16) 1 1 () () (2)8(0.75) 6 9