1、初一数学上册有理数混合运算题精选73(5)(1) 7(11) 1.5(15) 1 1 () () (9)4(2.75) 7 3 1 () 2 (8)1625 2 8 8 ( )( )(2) 1(1401) 7 7 1 (6) 6(4.9)0(93.7) 18 (9)(20) 6(15) 7.5(1) 1 1 () () (1)2(4.75) 7 4 1 () 4 (12)625 5 1 1 ( )( )(7) -1(2369) 4 5 19 (16) 17(9.9)0(41.4) 18 (7)(2) 2(4) 1.5(11) 1 1 () () (10)16(0.5) 7 2 1 () 18
2、(12)200.5 6 1 3 ( )( )(2) 0(1067) 5 2 7 (6) 18.5(0.5)0(57.5) 8 (10)(16) 2(6) 6(12) 1 1 () () (8)2(0.5) 8 6 1 () 18 (16)1825 6 1 1 ( )( )(6) 0(1309) 6 2 9 (20) 15(4.3)0(42.8) 8 (10)(14) 1(18) 5(17) 1 1 () () (3)12(3.25) 6 2 1 () 20 (4)6125 4 1 1 ( )( )(2) -1(1109) 6 2 11 (8) 0.5(8.9)0(11.9) 12 (9)(4)
3、 9(11) 3.5(19) 1 1 () () (2)12(4.5) 4 6 1 () 10 (20)202.5 3 1 1 ( )( )(4) -1(1651) 6 5 11 (8) 18(5.3)0(22.5) 10 (2)(20) 10(10) 9.5(17) 1 1 () () (2)20(0.25) 4 4 1 () 8 (8)160.05 5 3 5 ( )( )(7) -1(2504) 2 4 15 (18) 2.5(5.6)0(20.6) 16 (4)(13) 1(17) 10(17) 1 1 () () (4)10(2) 2 7 1 () 6 (20)1612.5 4 1
4、1 ( )( )(3) 1(1475) 3 8 1 (12) 15(5)0(21.4) 2 (1)(4) 2(18) 6(2) 1 1 () () (10)18(0.25) 5 5 1 () 14 (16)60.125 2 9 8 ( )( )(8) -1(2469) 8 7 13 (16) 5.5(9.9)0(52.5) 14 (7)(16) 5(17) 8(19) 1 1 () () (7)16(1) 3 5 1 () 20 (12)22.5 6 5 1 ( )( )(2) 1(1727) 4 4 7 (20) 3.5(7.2)0(74.7) 8 (3)(15) 7(1) 7.5(5) 1
5、 1 () () (1)10(1.75) 4 2 1 () 16 (16)80.25 5 1 3 ( )( )(3) -1(2559) 7 2 1 (20) 8(5.6)0(82) 2 (7)(18) 9(12) 2(8) 1 1 () () (8)2(1) 4 3 1 () 6 (12)82.5 3 7 7 ( )( )(5) 0(2984) 6 6 1 (14) 1.5(3.7)0(29.4) 2 (8)(13) 6(16) 10(13) 1 1 () () (10)16(1) 6 8 1 () 18 (4)165 8 1 8 ( )( )(2) 1(1204) 6 7 1 (6) 6(5
6、.4)0(69.5) 8 (7)(9) 9(10) 5.5(12) 1 1 () () (9)20(1.5) 7 8 1 () 4 (4)142.5 6 1 1 ( )( )(2) -1(1656) 5 3 7 (8) 4.5(0.7)0(69) 8 (7)(18) 1(12) 7(12) 1 1 () () (4)4(2) 6 7 1 () 16 (20)14250 4 1 6 ( )( )(10) -1(1473) 5 5 19 (20) 10.5(1.8)0(90.1) 20 (7)(7) 1(2) 9.5(8) 1 1 () () (4)10(1) 2 6 1 () 14 (12)10125 4 1 7 ( )( )(9) -1(2220) 4 6 1 (8) 9.5(3.7)0(96.6) 18 (2)(19) 8(6) 2.5(5) 1 1 () () (2)12(3.75) 5 7 1 () 4 (20)1450 4 4 1 ( )( )(4) 0(1443) 3 8 21 (2) 5(6.6)0(38.7) 20 (9)(1) 10(11) 8(2) 1 1 () () (5)10(3.75) 8 3 1 () 20 (8)140.05 6 1 4 ( )( )(3) 1(1825) 7 3 13 (16) 9(0.4)0(34.4) 14
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