1、初一数学上册有理数混合运算题精选99(3)(6) 10(3) 7(7) 1 1 () () (6)12(2.5) 7 3 1 () 4 (16)20.25 5 1 1 ( )( )(10) 0(2030) 6 4 1 (6) 13.5(1.4)0(96.2) 16 (6)(19) 8(5) 5.5(14) 1 1 () () (3)4(1.25) 3 6 1 () 8 (16)180.05 3 8 1 ( )( )(3) 1(1790) 7 5 11 (8) 7(0.9)0(48.6) 12 (5)(17) 2(14) 1.5(3) 1 1 () () (7)20(3.25) 3 4 1 ()
2、 10 (12)185 4 5 3 ( )( )(8) 1(2409) 4 2 7 (4) 2(4.2)0(90.7) 8 (3)(7) 2(16) 7.5(20) 1 1 () () (5)6(0.25) 4 6 1 () 16 (4)205 6 1 8 ( )( )(3) 1(2930) 8 7 13 (6) 6.5(2.5)0(35.7) 12 (3)(17) 7(20) 9.5(9) 1 1 () () (9)14(5) 2 5 1 () 16 (4)101.25 3 5 8 ( )( )(10) 1(1297) 4 7 7 (8) 19.5(8.8)0(67.1) 6 (9)(3)
3、1(20) 2(6) 1 1 () () (4)6(1) 2 4 1 () 14 (20)140.25 5 6 9 ( )( )(7) 1(1940) 5 8 7 (12) 8(7.1)0(25.9) 8 (4)(10) 5(3) 5.5(8) 1 1 () () (8)14(0.5) 4 6 1 () 12 (16)161.25 4 9 8 ( )( )(3) -1(2853) 8 7 19 (4) 2.5(1.5)0(42.5) 20 (6)(5) 3(20) 4(3) 1 1 () () (1)12(1.25) 4 9 1 () 20 (4)625 7 1 1 ( )( )(3) 1(2
4、772) 6 8 9 (12) 15(6.3)0(46.4) 8 (9)(20) 7(6) 9.5(19) 1 1 () () (7)6(4.25) 5 2 1 () 8 (20)25 5 6 3 ( )( )(3) 0(1298) 5 2 21 (2) 12.5(4.7)0(53.5) 20 (1)(3) 8(12) 4(14) 1 1 () () (3)16(3.25) 7 2 1 () 14 (20)1425 4 8 1 ( )( )(3) -1(1331) 7 3 5 (2) 9.5(7.5)0(56.5) 6 (7)(2) 4(7) 3(17) 1 1 () () (10)6(0.7
5、5) 5 7 1 () 16 (8)200.25 3 3 1 ( )( )(8) 0(1232) 2 7 1 (20) 11.5(2)0(25.4) 4 (10)(18) 10(18) 2(11) 1 1 () () (8)20(3.25) 5 8 1 () 10 (8)2250 8 1 1 ( )( )(2) 1(2727) 4 5 9 (4) 12(6.3)0(81.6) 8 (3)(1) 4(12) 5.5(4) 1 1 () () (8)10(0.75) 4 4 1 () 20 (16)65 2 9 1 ( )( )(2) -1(2642) 8 8 1 (12) 19.5(0.4)0(
6、84.1) 12 (10)(7) 7(19) 6.5(15) 1 1 () () (7)10(2.5) 7 3 1 () 6 (4)21.25 8 1 1 ( )( )(4) 0(1895) 3 4 19 (2) 14.5(3.5)0(73.4) 18 (4)(4) 6(18) 1(14) 1 1 () () (2)6(3) 5 8 1 () 4 (16)140.125 6 1 4 ( )( )(7) 1(1084) 7 3 1 (4) 2(9)0(99.6) 4 (5)(15) 10(16) 4.5(3) 1 1 () () (5)20(3.25) 2 4 1 () 18 (16)182.5 6 8 8 ( )( )(3) 1(2722) 7 7 1 (8) 8(1.8)0(25.8) 18 (2)(12) 2(9) 4(12) 1 1 () () (7)20(5) 8 8 1 () 14 (20)205 4 6 1 ( )( )(3) 0(1480) 5 5 1 (10) 1(3.6)0(32.3) 20 (2)(1) 9(14) 8.5(2) 1 1 () () (7)2(1.75) 6 9 1 () 4 (4)1825 2 5 1 ( )( )(2) -1(2697) 4 5 11 (14) 7.5(9.2)0(15.7) 10 (3)
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