1、有理数计算题专项练习 119 1 1 () () (4)8(1.25) 7 9 1 () 10 (8)225 5 5 1 ( )( )(6) 0(2864) 4 6 1 (18) 5(2.8)0(88.2) 12 (4)(14) 4(17) 8(17) 1 1 () () (10)14(2) 6 6 1 () 14 (8)6250 6 1 8 ( )( )(10) 0(2277) 4 7 7 (6) 15.5(4.1)0(28.8) 6 (1)(4) 3(12) 4(7) 1 1 () () (6)20(0.25) 3 3 1 () 10 (16)1812.5 5 7 1 ( )( )(10)
2、 0(1287) 6 4 1 (16) 20(1.9)0(41.8) 16 (10)(6) 3(11) 7(19) 1 1 () () (8)10(1.25) 3 3 1 () 6 (16)140.125 4 5 1 ( )( )(5) 0(2262) 4 3 7 (4) 10.5(5.8)0(10.4) 8 (3)(16) 5(19) 3(4) 1 1 () () (6)4(3.25) 4 5 1 () 14 (8)102.5 6 5 4 ( )( )(6) 0(2204) 4 3 3 (2) 4.5(9.9)0(68.8) 2 (6)(18) 5(15) 10(8) 1 1 () () (
3、9)4(1) 2 2 1 () 18 (8)160.05 3 1 1 ( )( )(2) 0(2354) 3 7 3 (4) 11(5.5)0(96.6) 4 (4)(13) 8(4) 9.5(18) 1 1 () () (10)20(5) 4 7 1 () 2 (20)60.05 8 1 5 ( )( )(9) 1(1270) 6 4 15 (10) 16(1.5)0(41) 16 (10)(18) 1(11) 9.5(5) 1 1 () () (8)12(3.25) 6 7 1 () 18 (20)1012.5 2 5 8 ( )( )(7) -1(1541) 4 7 11 (2) 17(
4、6.7)0(56.6) 12 (10)(10) 1(8) 2(15) 1 1 () () (4)2(1.75) 6 9 1 () 12 (8)41.25 2 1 8 ( )( )(8) 1(1174) 6 7 15 (4) 9(6.3)0(60.2) 16 (4)(10) 1(14) 8(10) 1 1 () () (9)14(4) 8 4 1 () 6 (20)180.5 5 1 1 ( )( )(3) 0(2041) 3 8 9 (18) 13(2.4)0(42.9) 8 (3)(11) 9(13) 2(1) 1 1 () () (1)12(5) 4 7 1 () 10 (8)120.25
5、 2 1 8 ( )( )(5) 0(2410) 6 7 5 (8) 10(6.4)0(14.3) 6 (9)(6) 1(18) 4(18) 1 1 () () (10)2(1.25) 6 4 1 () 2 (20)105 5 5 1 ( )( )(4) 1(1248) 4 2 1 (14) 14.5(4.1)0(49.6) 14 (9)(3) 2(19) 5(7) 1 1 () () (5)16(1.75) 6 2 1 () 2 (20)850 3 1 1 ( )( )(5) 1(1421) 8 3 7 (16) 7.5(0.2)0(56.4) 8 (8)(5) 7(2) 8(8) 1 1
6、() () (3)14(0.75) 6 3 1 () 12 (8)80.25 5 7 1 ( )( )(4) 0(2101) 6 8 7 (12) 10.5(4.8)0(49.2) 8 (7)(8) 6(11) 1(14) 1 1 () () (2)16(0.25) 7 4 1 () 20 (20)102.5 6 1 1 ( )( )(7) -1(2103) 3 4 9 (6) 14.5(5.8)0(62.8) 10 (6)(20) 2(15) 6.5(18) 1 1 () () (8)12(1.5) 3 8 1 () 18 (20)25 3 1 1 ( )( )(4) -1(1500) 3
7、5 1 (8) 15.5(3.3)0(25.8) 10 (4)(20) 7(15) 4.5(7) 1 1 () () (4)12(1.25) 3 9 1 () 20 (4)165 2 7 1 ( )( )(10) 1(1681) 6 3 1 (4) 0.5(3.9)0(55) 8 (3)(3) 1(3) 4(15) 1 1 () () (1)4(4.25) 5 4 1 () 18 (8)225 5 1 7 ( )( )(3) -1(2426) 3 6 5 (2) 8.5(5)0(57.5) 6 (1)(2) 1(20) 4(4) 1 1 () () (5)2(2.75) 5 7 1 () 16
8、 (20)25 8 1 9 ( )( )(8) -1(2428) 5 8 21 (12) 16(7.4)0(72.2) 20 (4)(5) 8(2) 4(6) 1 1 () () (5)16(0.25) 6 7 1 () 16 (8)1212.5 2 9 1 ( )( )(10) 1(1162) 8 8 1 (6) 19(5.4)0(46.2) 6 (7)(2) 1(14) 3(3) 1 1 () () (7)4(3) 4 8 1 () 4 (12)162.5 5 1 5 ( )( )(10) -1(2993) 7 4 5 (10) 15(5.6)0(99.3) 4 (3)(3) 3(10) 6(16) 1 1 () () (6)2(5) 7 6 1 () 4 (20)160.125 8 1 1 ( )( )(9) -1(1115) 6 2 9 (10) 15.5(1.9)0(71.4) 8 (8)(19) 7(14) 1(2) 1 1 () () (3)16(1.5) 4 6 1 () 2 (12)12250 4 8 3 ( )( )(7) -1(1927) 7 2 3 (6) 17(1.5)0(63) 4
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