1、初一数学上册有理数混合运算题精选120(2)(18) 7(15) 3.5(20) 1 1 () () (2)6(3.25) 3 8 1 () 20 (8)2250 8 1 1 ( )( )(5) -1(2945) 3 6 9 (8) 8(7.1)0(67.3) 8 (4)(18) 5(7) 3(17) 1 1 () () (8)2(4.5) 6 7 1 () 18 (20)40.25 4 7 5 ( )( )(7) 1(1246) 6 4 1 (14) 20(1.4)0(49.1) 8 (2)(14) 2(5) 2(11) 1 1 () () (8)16(4) 3 6 1 () 2 (20)1
2、8250 2 8 1 ( )( )(2) 1(1278) 7 2 1 (20) 2.5(7.2)0(53.9) 2 (5)(2) 10(18) 8(7) 1 1 () () (10)18(3.5) 8 2 1 () 8 (20)62.5 8 1 1 ( )( )(2) 1(2981) 3 2 21 (16) 3(3.8)0(38.7) 20 (4)(6) 10(7) 2.5(9) 1 1 () () (4)4(1.25) 5 5 1 () 16 (20)14250 3 1 5 ( )( )(10) -1(1400) 7 4 1 (20) 1(7.9)0(52.5) 10 (1)(6) 3(8)
3、 3(15) 1 1 () () (9)6(4.75) 6 6 1 () 10 (16)181.25 8 1 7 ( )( )(3) 1(2615) 7 6 13 (2) 13(9.9)0(60.5) 14 (7)(11) 5(4) 0.5(5) 1 1 () () (7)2(2) 2 5 1 () 4 (4)182.5 3 6 1 ( )( )(7) 0(1563) 5 2 1 (16) 14.5(1.3)0(91.9) 6 (5)(5) 3(1) 1(16) 1 1 () () (6)8(5) 5 7 1 () 18 (16)8250 3 8 4 ( )( )(2) -1(2431) 7
4、3 7 (18) 19.5(5.7)0(42.5) 6 (10)(19) 7(19) 7.5(10) 1 1 () () (7)4(0.5) 5 8 1 () 10 (20)1625 2 7 7 ( )( )(9) 1(1460) 6 6 3 (12) 17.5(7.5)0(53.7) 2 (9)(14) 6(7) 1.5(8) 1 1 () () (8)18(3.75) 6 3 1 () 16 (4)1412.5 7 8 8 ( )( )(8) 1(1074) 7 7 1 (8) 0.5(5)0(74.7) 12 (3)(15) 4(17) 2.5(4) 1 1 () () (6)14(4.
5、5) 2 3 1 () 16 (8)145 8 1 1 ( )( )(6) 0(1591) 6 4 15 (14) 9(0.5)0(84.3) 16 (1)(3) 5(15) 3.5(6) 1 1 () () (9)14(2.5) 8 4 1 () 20 (20)122.5 2 4 9 ( )( )(4) 0(2351) 3 8 1 (20) 15(9.8)0(95.2) 16 (5)(16) 2(6) 9.5(19) 1 1 () () (5)8(4.5) 4 3 1 () 14 (4)850 7 1 1 ( )( )(10) -1(1870) 6 6 3 (10) 8.5(9.8)0(51
6、.8) 2 (7)(7) 10(14) 1(10) 1 1 () () (6)6(4.75) 5 7 1 () 6 (20)12250 7 1 1 ( )( )(6) 1(1708) 5 2 1 (20) 18.5(8.7)0(85.4) 10 (10)(20) 2(13) 2.5(11) 1 1 () () (10)4(4.75) 2 9 1 () 12 (12)145 6 9 5 ( )( )(6) -1(2361) 8 4 15 (4) 1(8.7)0(78) 14 (5)(8) 9(11) 6(15) 1 1 () () (1)16(2.25) 5 8 1 () 18 (8)180.2
7、5 6 6 1 ( )( )(2) 0(2407) 5 3 1 (8) 7.5(2.3)0(87.1) 18 (6)(11) 5(5) 10(5) 1 1 () () (3)14(1.5) 8 6 1 () 8 (16)850 5 1 7 ( )( )(6) 1(1108) 8 6 5 (4) 4(6.3)0(28) 6 (6)(20) 9(4) 8(3) 1 1 () () (10)14(4.5) 3 8 1 () 2 (20)80.5 8 4 8 ( )( )(4) -1(2643) 3 7 7 (20) 3(7.2)0(20) 6 (1)(19) 7(11) 4.5(4) 1 1 () () (9)2(2.25) 4 6 1 () 10 (16)225 5 8 5 ( )( )(3) 0(2067) 7 4 17 (4) 2.5(6.7)0(89.7) 18 (3)(6) 10(1) 8.5(7) 1 1 () () (5)2(0.5) 6 4 1 () 4 (4)2125 8 8 1 ( )( )(7) 0(1143) 7 4 5 (14) 4.5(5.7)0(64.2) 6
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