1、初一数学上册有理数混合运算题精选117(2)(4) 9(11) 6.5(19) 1 1 () () (8)8(1.5) 7 4 1 () 2 (20)140.25 3 5 1 ( )( )(5) 0(2474) 4 5 1 (4) 3(2.3)0(46.6) 14 (7)(12) 6(2) 6(11) 1 1 () () (1)10(3.75) 3 2 1 () 16 (12)16125 3 1 1 ( )( )(3) 1(2263) 7 3 5 (14) 14(1.7)0(60.3) 4 (1)(9) 7(19) 2.5(5) 1 1 () () (2)14(1) 7 4 1 () 2 (1
2、2)60.25 7 4 1 ( )( )(10) -1(1430) 3 5 15 (20) 0.5(0.6)0(66.4) 16 (10)(12) 4(20) 9.5(5) 1 1 () () (2)2(1.75) 3 7 1 () 12 (8)101.25 7 4 1 ( )( )(9) 0(2622) 3 7 13 (12) 20(6.7)0(61.4) 12 (2)(16) 1(8) 5(13) 1 1 () () (2)20(2) 8 2 1 () 4 (20)1212.5 6 1 9 ( )( )(6) 1(2358) 5 8 7 (4) 1.5(8.5)0(76) 6 (4)(18
3、) 10(10) 10(7) 1 1 () () (4)16(1.25) 2 4 1 () 10 (12)2025 3 5 1 ( )( )(3) -1(1541) 4 3 21 (2) 2.5(4.9)0(41.9) 20 (5)(16) 3(17) 1(14) 1 1 () () (2)16(3.5) 5 3 1 () 6 (12)200.5 5 1 8 ( )( )(3) 0(2832) 8 7 1 (2) 6.5(7.7)0(53) 10 (8)(2) 7(17) 1.5(19) 1 1 () () (8)4(1) 4 3 1 () 14 (4)41.25 7 3 6 ( )( )(6
4、) -1(1359) 2 5 1 (4) 11.5(5.3)0(26.8) 20 (7)(2) 3(10) 2.5(10) 1 1 () () (3)14(4.25) 7 5 1 () 20 (8)1025 7 3 7 ( )( )(9) -1(1859) 2 6 1 (2) 0.5(8.8)0(82.8) 4 (1)(12) 9(17) 9.5(8) 1 1 () () (8)2(1) 6 6 1 () 16 (12)25 2 7 1 ( )( )(9) 0(2060) 6 7 17 (20) 4(3.6)0(53.6) 16 (2)(19) 5(12) 9(5) 1 1 () () (1)
5、10(2.25) 7 7 1 () 8 (4)1012.5 8 4 1 ( )( )(5) 1(1545) 3 6 11 (12) 14.5(0.7)0(64.8) 12 (8)(11) 9(8) 2.5(19) 1 1 () () (2)10(0.75) 5 3 1 () 10 (16)180.5 3 6 9 ( )( )(7) 0(1248) 5 8 9 (4) 18.5(9.4)0(90) 10 (10)(12) 5(19) 9.5(10) 1 1 () () (5)8(1.5) 2 5 1 () 10 (20)200.125 5 1 1 ( )( )(9) 0(1756) 4 8 9
6、(2) 15(3.5)0(78.8) 10 (2)(15) 8(4) 6(19) 1 1 () () (2)8(2.75) 7 3 1 () 12 (16)812.5 6 8 6 ( )( )(5) -1(1645) 7 5 5 (18) 18.5(7.5)0(57.2) 6 (6)(16) 10(3) 1.5(19) 1 1 () () (9)14(3.75) 4 5 1 () 6 (8)180.125 2 1 1 ( )( )(8) 0(2778) 4 3 5 (8) 0.5(9.9)0(41.4) 6 (2)(2) 2(10) 6(11) 1 1 () () (6)10(1.75) 5
7、5 1 () 14 (12)62.5 6 1 1 ( )( )(7) -1(2996) 5 6 17 (4) 4.5(2.1)0(19.3) 18 (8)(2) 2(1) 0.5(19) 1 1 () () (8)18(0.5) 3 5 1 () 14 (12)200.25 7 1 5 ( )( )(7) 0(1183) 2 4 1 (14) 10(3.1)0(41.5) 12 (2)(15) 9(3) 3(9) 1 1 () () (10)10(4) 6 4 1 () 6 (16)8250 3 7 9 ( )( )(6) -1(1379) 6 8 11 (2) 17.5(2.6)0(95.5) 10 (4)(15) 3(7) 2(15) 1 1 () () (8)6(0.75) 7 6 1 () 20 (12)160.25 5 1 1 ( )( )(5) 1(1494) 7 3 5 (16) 13(1.3)0(27.9) 4 (5)(18) 5(14) 7.5(19) 1 1 () () (6)14(4.75) 6 2 1 () 10 (8)18250 6 6 6 ( )( )(3) 1(2852) 5 5 11 (20) 18(1.4)0(96.7) 12
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