1、初一数学上册有理数混合运算题精选122(5)(18) 1(14) 0.5(11) 1 1 () () (1)10(2) 5 2 1 () 18 (4)1812.5 3 6 6 ( )( )(8) 0(2199) 5 5 13 (6) 6(0.6)0(52.9) 12 (5)(15) 8(3) 6(17) 1 1 () () (3)20(4.5) 3 2 1 () 8 (12)80.5 8 3 9 ( )( )(6) -1(2102) 2 8 3 (2) 1(1.9)0(13) 4 (10)(2) 10(16) 5.5(6) 1 1 () () (3)10(0.75) 3 9 1 () 16 (
2、8)65 4 7 1 ( )( )(8) -1(2199) 6 6 11 (14) 12(2.1)0(87.9) 10 (9)(12) 10(20) 10(15) 1 1 () () (8)4(4) 3 5 1 () 20 (20)25 5 3 1 ( )( )(8) 1(1934) 2 8 9 (18) 12.5(3.2)0(47.7) 8 (10)(20) 3(6) 9.5(9) 1 1 () () (2)6(3.75) 2 9 1 () 16 (20)20.5 7 1 8 ( )( )(4) -1(2642) 4 7 1 (12) 13(1.4)0(58.7) 20 (1)(5) 7(2
3、0) 2(11) 1 1 () () (10)16(0.5) 7 4 1 () 8 (12)14250 3 1 1 ( )( )(6) 1(1463) 7 6 1 (16) 14(3.3)0(77.9) 8 (4)(8) 7(6) 9.5(10) 1 1 () () (8)12(3.5) 3 8 1 () 14 (12)40.125 7 7 1 ( )( )(5) 1(2088) 6 3 5 (14) 17.5(9.4)0(88.9) 6 (3)(9) 7(3) 3.5(18) 1 1 () () (7)14(3.25) 7 6 1 () 4 (4)100.05 7 5 4 ( )( )(2)
4、 1(2806) 4 3 1 (8) 1(9.7)0(46.5) 2 (1)(14) 5(4) 9(5) 1 1 () () (6)12(4.5) 3 8 1 () 20 (8)181.25 8 1 1 ( )( )(6) 0(2288) 6 7 1 (10) 17.5(3)0(21.6) 8 (6)(14) 7(16) 10(17) 1 1 () () (7)10(2.75) 3 5 1 () 14 (4)1625 8 1 7 ( )( )(2) 1(1361) 6 6 1 (8) 9(6.5)0(17.1) 16 (9)(7) 1(17) 0.5(19) 1 1 () () (3)20(2
5、) 8 7 1 () 14 (20)41.25 5 4 5 ( )( )(8) 1(1247) 3 4 17 (2) 3.5(7.1)0(82.7) 16 (7)(3) 4(12) 4.5(10) 1 1 () () (4)16(1.75) 7 4 1 () 10 (16)42.5 4 9 7 ( )( )(10) 0(2155) 8 6 11 (20) 9(3.2)0(42.7) 12 (7)(20) 7(15) 5(15) 1 1 () () (9)12(3.5) 7 8 1 () 20 (12)650 3 1 9 ( )( )(3) -1(1508) 6 8 1 (10) 14(6.9)
6、0(77.7) 16 (5)(14) 10(2) 4.5(7) 1 1 () () (2)12(0.75) 8 8 1 () 6 (8)120.5 5 1 1 ( )( )(4) 0(2673) 6 3 17 (18) 8.5(6.9)0(49.7) 18 (6)(20) 4(1) 8(13) 1 1 () () (8)6(5) 8 4 1 () 2 (20)1225 2 3 5 ( )( )(6) -1(1250) 2 4 3 (4) 2.5(5.6)0(37.5) 2 (5)(12) 8(13) 5.5(15) 1 1 () () (1)18(0.25) 8 6 1 () 14 (4)12
7、0.5 5 1 7 ( )( )(3) -1(1299) 4 6 15 (18) 18(1.9)0(46.3) 16 (7)(18) 4(2) 6(16) 1 1 () () (9)14(1) 4 7 1 () 10 (8)102.5 8 9 1 ( )( )(4) 1(2056) 8 3 1 (2) 16.5(0.1)0(44.2) 6 (7)(4) 3(2) 3(5) 1 1 () () (6)20(4) 4 4 1 () 12 (12)1012.5 6 7 3 ( )( )(9) 0(1449) 6 2 13 (18) 16.5(2.9)0(81.8) 12 (8)(6) 10(17) 7(19) 1 1 () () (5)10(4.25) 4 3 1 () 6 (8)165 8 1 1 ( )( )(9) -1(1559) 8 8 1 (8) 3(1.1)0(31.7) 18 (3)(4) 8(19) 7.5(4) 1 1 () () (4)14(3.25) 7 4 1 () 10 (16)140.25 5 1 5 ( )( )(6) 0(1912) 3 4 1 (16) 11(5.7)0(23.6) 4
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