1、初一数学上册有理数混合运算题精选41(3)(14) 7(10) 3(19) 1 1 () () (7)20(0.25) 7 9 1 () 20 (12)612.5 2 1 1 ( )( )(8) 1(2999) 6 2 5 (10) 18.5(9.7)0(74.5) 4 (9)(17) 2(8) 9(1) 1 1 () () (7)10(4.5) 7 2 1 () 16 (12)1225 8 7 5 ( )( )(6) -1(2671) 6 4 13 (14) 7.5(0.5)0(29.3) 12 (10)(19) 7(2) 6(20) 1 1 () () (3)12(4) 2 6 1 ()
2、8 (12)140.25 5 1 1 ( )( )(8) 1(1841) 2 6 9 (8) 9.5(4.3)0(63.1) 8 (1)(19) 2(13) 9.5(11) 1 1 () () (1)4(4.25) 2 5 1 () 20 (16)825 8 1 1 ( )( )(4) 1(2196) 2 7 21 (8) 11(6.1)0(64.7) 20 (1)(14) 10(16) 7(1) 1 1 () () (4)8(0.5) 5 9 1 () 10 (20)40.05 7 8 1 ( )( )(2) -1(1291) 7 4 17 (20) 16.5(4.6)0(77.2) 16
3、(1)(18) 5(19) 3.5(6) 1 1 () () (10)12(3.75) 3 8 1 () 20 (4)61.25 6 1 1 ( )( )(6) -1(2527) 6 8 11 (18) 19(2.7)0(94.6) 12 (6)(9) 2(10) 2.5(17) 1 1 () () (5)16(2.5) 5 4 1 () 12 (12)212.5 7 1 9 ( )( )(9) -1(1294) 7 8 9 (14) 0.5(2.3)0(41.4) 10 (6)(16) 2(14) 6(18) 1 1 () () (7)16(1) 3 8 1 () 16 (20)22.5 7
4、 6 9 ( )( )(6) 0(2256) 5 8 1 (10) 3.5(9.2)0(50.1) 20 (5)(8) 9(7) 4.5(16) 1 1 () () (5)18(1.5) 4 7 1 () 14 (20)12125 3 1 1 ( )( )(9) -1(2850) 2 2 1 (20) 10(2.1)0(50.6) 2 (3)(16) 4(18) 4(18) 1 1 () () (7)10(5) 7 7 1 () 14 (12)180.5 3 6 1 ( )( )(3) -1(2208) 5 3 19 (2) 7.5(2.1)0(31.7) 18 (6)(15) 8(16) 2
5、(13) 1 1 () () (2)12(5) 5 6 1 () 12 (12)165 7 1 4 ( )( )(2) -1(1056) 8 3 17 (16) 12.5(9.1)0(15.9) 16 (5)(18) 3(11) 10(5) 1 1 () () (10)4(3.5) 6 4 1 () 16 (20)60.25 8 1 1 ( )( )(3) 0(1952) 5 2 21 (2) 2(0.3)0(63.6) 20 (7)(1) 1(7) 10(6) 1 1 () () (1)18(3) 8 2 1 () 6 (20)40.5 7 1 8 ( )( )(5) 0(2895) 4 7
6、 1 (10) 17(9.5)0(83) 8 (8)(11) 9(6) 1.5(13) 1 1 () () (10)20(3.25) 5 2 1 () 10 (4)100.05 4 1 9 ( )( )(9) 1(2030) 7 8 11 (16) 18.5(3.3)0(14) 12 (2)(3) 6(3) 9.5(14) 1 1 () () (8)14(3) 5 6 1 () 6 (4)45 2 1 8 ( )( )(7) 1(1989) 3 7 3 (16) 13(9.6)0(46.6) 4 (2)(2) 10(4) 9.5(13) 1 1 () () (4)18(4) 4 7 1 ()
7、8 (20)10125 5 1 5 ( )( )(5) -1(1624) 4 4 1 (14) 13(4.7)0(45.1) 6 (3)(7) 5(5) 9.5(16) 1 1 () () (3)2(0.25) 3 4 1 () 18 (12)200.05 6 1 4 ( )( )(8) 1(2814) 7 3 21 (14) 20(5.5)0(51.3) 20 (1)(19) 9(20) 8(6) 1 1 () () (1)4(2.5) 6 4 1 () 2 (4)122.5 2 9 1 ( )( )(9) 0(2141) 8 7 19 (2) 2(5)0(14.7) 18 (10)(17) 8(1) 4.5(13) 1 1 () () (10)16(3.25) 8 4 1 () 2 (16)180.25 8 8 1 ( )( )(10) 1(1841) 7 2 1 (8) 11(8.6)0(24.6) 4 (10)(10) 9(1) 8.5(11) 1 1 () () (7)12(3.25) 8 5 1 () 16 (16)425 7 1 7 ( )( )(7) -1(1651) 6 6 1 (4) 14(2.6)0(77) 16