1、初一数学上册有理数混合运算题精选106(5)(15) 3(13) 7.5(9) 1 1 () () (8)16(0.5) 5 7 1 () 20 (4)145 5 5 1 ( )( )(10) 0(1962) 4 3 5 (12) 0.5(3.1)0(31) 4 (5)(10) 5(6) 8.5(12) 1 1 () () (2)2(0.25) 6 5 1 () 8 (16)102.5 6 7 1 ( )( )(9) 0(1614) 6 6 5 (14) 2(1)0(29.8) 6 (2)(14) 2(19) 9(2) 1 1 () () (5)18(4.75) 6 5 1 () 10 (16
2、)650 5 1 5 ( )( )(5) 1(2145) 5 4 19 (4) 5(7)0(29.2) 20 (8)(16) 9(8) 4(12) 1 1 () () (7)18(1.5) 7 4 1 () 8 (16)82.5 2 6 4 ( )( )(2) -1(2316) 5 3 3 (16) 16.5(3.7)0(80.3) 4 (6)(18) 10(20) 10(2) 1 1 () () (10)18(3.75) 4 7 1 () 20 (8)122.5 2 7 1 ( )( )(5) 1(2400) 6 5 1 (18) 6(3.5)0(73.7) 14 (8)(6) 8(8) 3
3、.5(9) 1 1 () () (4)4(3.75) 5 8 1 () 20 (16)4250 2 8 1 ( )( )(7) 0(1938) 7 5 11 (10) 5(2.7)0(47.3) 12 (9)(6) 5(12) 6(20) 1 1 () () (5)10(4.25) 2 6 1 () 20 (16)120.05 6 1 1 ( )( )(10) 0(1727) 4 3 3 (10) 13(8.6)0(43.2) 2 (8)(8) 9(11) 2.5(13) 1 1 () () (8)2(1.25) 8 2 1 () 20 (4)140.5 7 9 8 ( )( )(5) 1(1
4、332) 8 7 11 (8) 12(0.8)0(53.5) 12 (8)(9) 8(7) 9.5(3) 1 1 () () (6)8(4) 2 8 1 () 12 (4)2250 7 1 1 ( )( )(5) 0(1226) 2 4 17 (18) 14(8)0(24.8) 18 (7)(9) 2(7) 6.5(20) 1 1 () () (2)14(0.75) 8 6 1 () 20 (12)120.05 8 7 4 ( )( )(3) -1(2552) 6 3 15 (20) 10(0.8)0(55) 16 (6)(16) 3(14) 9.5(1) 1 1 () () (1)6(3)
5、8 8 1 () 8 (20)1412.5 8 1 7 ( )( )(10) 1(1432) 7 6 1 (2) 17.5(4.4)0(61.4) 20 (2)(8) 5(2) 3(12) 1 1 () () (10)8(0.75) 6 3 1 () 6 (8)1225 2 7 9 ( )( )(10) 1(1417) 6 8 11 (2) 13(7.2)0(30.8) 12 (1)(11) 2(5) 4.5(10) 1 1 () () (7)8(3.5) 7 7 1 () 18 (20)20.05 2 8 7 ( )( )(8) -1(1665) 7 6 15 (16) 1(4.8)0(40
6、.5) 14 (9)(10) 8(15) 2.5(18) 1 1 () () (1)10(3.75) 4 9 1 () 8 (4)1825 3 1 1 ( )( )(5) 1(2028) 7 5 21 (2) 15(1.9)0(82.8) 20 (9)(12) 6(1) 2.5(15) 1 1 () () (10)16(0.25) 8 5 1 () 6 (12)141.25 4 1 3 ( )( )(2) -1(2709) 2 2 1 (10) 3(6.2)0(88.1) 2 (8)(2) 5(16) 2(13) 1 1 () () (7)16(0.5) 4 7 1 () 20 (20)42.
7、5 8 1 8 ( )( )(5) 1(1762) 7 7 15 (18) 11.5(7.4)0(59.4) 14 (5)(2) 6(16) 5.5(12) 1 1 () () (10)8(3) 4 5 1 () 10 (4)1450 8 1 8 ( )( )(7) -1(2227) 5 7 3 (4) 12.5(4.6)0(19.5) 2 (3)(10) 6(15) 5(11) 1 1 () () (1)12(3.75) 8 2 1 () 8 (4)140.125 3 1 3 ( )( )(6) -1(1635) 7 2 1 (12) 6(0.7)0(46.6) 10 (9)(8) 8(5) 7.5(5) 1 1 () () (5)20(2) 5 4 1 () 4 (4)160.25 7 6 4 ( )( )(3) 1(2008) 5 3 13 (8) 8(9.5)0(22.3) 14 (8)(19) 2(16) 3.5(4) 1 1 () () (4)10(0.25) 7 9 1 () 14 (12)6250 7 3 7 ( )( )(2) -1(2471) 2 6 5 (16) 4.5(9.9)0(68.5) 4
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