1、初一数学上册有理数混合运算题精选71(4)(15) 7(14) 1(10) 1 1 () () (7)2(1.75) 2 5 1 () 16 (16)612.5 5 1 1 ( )( )(4) 1(2629) 8 7 15 (6) 18(6)0(55.7) 14 (8)(12) 5(4) 6(3) 1 1 () () (2)10(4) 6 6 1 () 14 (4)200.125 3 1 1 ( )( )(7) -1(1919) 3 5 1 (4) 6.5(3.9)0(66.1) 10 (10)(4) 3(6) 2(3) 1 1 () () (10)12(2.5) 8 9 1 () 10 (4
2、)8250 4 1 4 ( )( )(8) -1(2681) 5 3 3 (14) 0.5(6.7)0(89.2) 2 (3)(17) 4(6) 4(13) 1 1 () () (7)10(5) 4 3 1 () 10 (4)200.125 5 8 7 ( )( )(9) 1(1123) 7 6 17 (16) 10.5(6.8)0(23.8) 16 (6)(10) 7(12) 8(1) 1 1 () () (8)20(3) 8 2 1 () 8 (8)185 4 9 1 ( )( )(6) -1(2717) 8 8 1 (10) 14.5(3)0(14.2) 6 (2)(6) 3(4) 1(
3、1) 1 1 () () (6)14(0.25) 4 8 1 () 16 (16)162.5 5 3 1 ( )( )(2) 1(2983) 2 7 17 (12) 9.5(3.9)0(36) 18 (8)(11) 1(8) 7(14) 1 1 () () (2)18(4.75) 4 5 1 () 6 (4)200.05 5 1 1 ( )( )(4) 0(2519) 7 2 1 (10) 13(9.4)0(79.3) 8 (10)(7) 9(7) 9.5(18) 1 1 () () (7)16(4.5) 2 9 1 () 8 (16)120.125 8 1 1 ( )( )(8) 0(131
4、0) 5 2 19 (16) 9(1.1)0(70.2) 18 (10)(16) 2(20) 5.5(7) 1 1 () () (5)4(4.75) 3 9 1 () 6 (16)100.25 6 4 6 ( )( )(6) 0(2369) 3 5 15 (18) 7.5(3.8)0(76.1) 14 (3)(8) 7(16) 2.5(1) 1 1 () () (3)14(2.5) 2 8 1 () 2 (4)1012.5 4 4 1 ( )( )(8) 1(1460) 3 2 1 (6) 2.5(9.6)0(99.6) 6 (8)(3) 8(16) 3(2) 1 1 () () (6)10(
5、1.5) 2 3 1 () 18 (4)1812.5 6 3 1 ( )( )(2) 1(1523) 2 4 5 (10) 18.5(2.6)0(77.2) 4 (1)(20) 3(15) 5.5(3) 1 1 () () (3)2(3) 4 8 1 () 6 (12)41.25 7 7 7 ( )( )(6) 0(2568) 6 6 3 (20) 7.5(8.9)0(61.1) 2 (4)(12) 10(19) 8(11) 1 1 () () (5)2(4.5) 4 9 1 () 6 (20)120.25 2 1 6 ( )( )(4) 0(2684) 5 5 9 (18) 18(3.2)0
6、(85.9) 8 (3)(2) 8(11) 4.5(15) 1 1 () () (8)8(4.5) 4 5 1 () 16 (4)250 6 1 1 ( )( )(10) -1(2335) 5 4 1 (6) 1.5(7.9)0(29.4) 6 (10)(18) 10(7) 8.5(16) 1 1 () () (4)6(1) 7 7 1 () 12 (16)250 5 1 5 ( )( )(5) 0(2414) 7 4 19 (20) 5(2.3)0(58.9) 20 (3)(16) 8(14) 0.5(19) 1 1 () () (7)4(5) 2 8 1 () 8 (20)1625 5 1
7、 1 ( )( )(9) -1(2482) 2 3 21 (6) 18.5(6.5)0(54.2) 20 (9)(14) 2(1) 5.5(12) 1 1 () () (8)2(2) 6 4 1 () 10 (12)625 3 3 1 ( )( )(8) 0(1041) 2 5 1 (20) 8.5(7.7)0(11.9) 2 (1)(8) 3(7) 2.5(18) 1 1 () () (10)10(0.5) 7 7 1 () 6 (20)1212.5 2 4 1 ( )( )(5) 1(2577) 3 3 19 (20) 10(2.9)0(77.8) 18 (7)(8) 4(8) 2.5(1) 1 1 () () (3)16(3.75) 2 3 1 () 8 (12)181.25 6 1 5 ( )( )(7) 1(2522) 8 4 15 (10) 11(9.7)0(34.2) 14 (1)(12) 5(14) 5.5(5) 1 1 () () (9)6(2.25) 3 3 1 () 20 (20)182.5 6 7 1 ( )( )(8) 1(2358) 6 4 19 (4) 3(5.7)0(60.3) 18
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