1、初一数学上册有理数的计算专项练习9 6 2 ()()(2) 26(3)3(5 7 7 1 1 1 ( )( ) 28(10)5(18) 4 6 5 1 (0.2)(300) (4)443 (1)2341 9 1 1 1 ()()0 13(3)3(1 9 3 5 1 2 1 ( )( ) 17(18)4(17) 2 3 2 3 9 ( )(20) (1)413 (1)1627 2 8 (16)(9) 11(10) 3(12.5) 1 1 ()() 135(79) (0)413 8 8 3913(26)(8) 8.5(5.9)(4.5)7.1 2 1 1 3 2 1 ()() 8.8()(7.8)
2、 3 8 6 7 5 5 5 3 ()()(6) 17(2)2(5 7 7 1 1 4 ( )( ) 12(17)5(14) 4 8 3 1 (0.1)(700) (5)323 (1)1539 5 1 1 1 ()()0 22(3)2(3 7 9 2 1 1 1 ( )( ) 9(22)1(19) 4 3 5 1 1 ( )(60) (2)333 (1)2407 2 3 (14)(17) 19(11) 4.5(6.5) 1 1 ()() 15(84) (3)342 6 5 1419(20)(10) 2.8(8.4)(1.7)3.7 2 1 1 3 1 4 ()() 8.2()(9.2) 7 3
3、 2 7 5 5 6 6 ()()(10) 12(3)2(5 7 7 1 1 1 ( )( ) 10(25)9(18) 7 2 3 1 (0.9)(600) (5)413 (1)1013 7 1 1 1 ()()0 15(2)2(3 3 9 7 1 4 4 ( )( ) 12(16)6(16) 7 3 3 1 1 ( )(20) (4)413 (1)1123 8 7 (17)(20) 15(2) 10(24) 1 1 ()() 144(144) (0)454 7 7 3718(23)(28) 3.1(8.5)(2.6)8.3 2 1 1 1 8 4 ()() 3.3()(1.7) 5 6 9
4、5 5 5 1 5 ()()(2) 12(1)2(2 7 7 1 1 6 ( )( ) 16(23)9(17) 8 2 5 1 (0.4)(1) (4)243 (1)2150 2 1 1 1 ()()0 28(4)2(1 6 4 8 1 1 1 ( )( ) 1(17)2(13) 4 2 6 3 4 ( )(70) (5)413 (1)1474 4 3 (14)(3) 5(14) 7.5(3.5) 1 1 ()() 42(1310) (4)434 8 9 283(23)(9) 7.6(0.9)(2.8)1.7 2 1 1 3 8 4 ()() 9.7()(4.7) 5 4 8 5 5 5 3
5、5 ()()(7) 10(4)3(4 7 7 1 1 1 ( )( ) 21(15)1(15) 2 4 3 1 (0.6)(100) (5)333 (1)2400 7 1 1 1 ()()0 9(1)2(2 2 8 2 1 1 3 ( )( ) 6(19)4(13) 7 5 4 4 1 ( )(10) (4)212 (1)1781 5 8 (15)(18) 5(15) 1(0.5) 1 1 ()() 92(147) (4)212 9 6 27(10)(17) 3.9(0.3)(2.1)6.8 2 1 1 4 2 8 ()() 6.1()(3.1) 3 5 9 7 5 5 6 1 ()()(6)
6、 22(4)2(1 7 7 3 1 1 ( )( ) 21(10)9(14) 2 6 3 1 (0.2)(900) (3)423 (1)1977 6 1 1 1 ()()0 12(3)2(3 7 2 9 1 1 7 ( )( ) 23(16)4(13) 3 3 6 5 9 ( )(70) (5)212 (1)1339 4 8 (7)(20) 12(9) 10.5(6) 1 1 ()() 200(23) (1)324 3 9 09(1)(24) 9.9(9.1)(4.5)7.4 2 1 1 2 6 1 ()() 1.9()(4.8) 9 4 7 7 5 5 1 3 ()()(1) 28(3)2(
7、5 7 7 1 1 1 ( )( ) 21(14)6(12) 6 8 5 1 (0.8)(600) (5)312 (1)2978 2 1 1 1 ()()0 23(4)3(5 6 9 7 1 1 1 ( )( ) 13(13)5(20) 4 6 5 1 1 ( )(20) (2)342 (1)1088 2 3 (1)(20) 0(8) 15(20) 1 1 ()() 63(174) (4)242 2 4 136(4)(27) 9.4(0.7)(4)8.2 2 1 1 1 8 8 ()() 3.7()(3.1) 9 3 9 7 5 5 6 6 ()()(1) 10(1)3(4 7 7 4 1 1
8、 ( )( ) 13(20)3(12) 5 4 5 1 (0.6)(90) (5)253 (1)1034 7 1 1 1 ()()0 8(4)3(1 7 4 5 1 1 1 ( )( ) 20(14)2(12) 3 8 5 7 1 ( )(20) (5)212 (1)1617 8 5 (1)(3) 4(8) 5.5(16) 1 1 ()() 141(86) (1)424 8 3 1919(22)(17) 2.8(1.6)(4.5)2.1 2 1 1 3 4 1 ()() 3.9()(9.9) 5 9 8 5 5 5 6 6 ()()(9) 12(3)2(4 7 7 8 1 4 ( )( ) 2
9、5(12)1(18) 9 2 3 1 (0.5)(100) (3)233 (1)2437 6 1 1 1 ()()0 22(1)3(1 6 3 9 1 1 6 ( )( ) 18(13)10(11) 5 2 7 1 1 ( )(50) (1)423 (1)2744 4 2 (4)(17) 18(11) 3.5(15.5) 1 1 ()() 192(104) (5)434 2 9 285(20)(11) 7(5.3)(0.9)0.7 2 1 1 1 3 6 ()() 3.4()(6.4) 7 2 9 7 5 5 5 2 ()()(2) 5(4)3(5 7 7 1 1 1 ( )( ) 15(19
10、)1(18) 7 4 9 1 (0.3)(900) (3)422 (1)1894 2 1 1 1 ()()0 21(2)2(2 2 2 2 1 1 1 ( )( ) 25(12)5(10) 5 5 5 3 1 ( )(20) (5)452 (1)1282 4 8 (18)(18) 14(14) 3.5(5.5) 1 1 ()() 175(62) (0)314 2 7 255(10)(16) 1.3(8)(4.2)3.5 2 1 1 4 4 4 ()() 7.9()(8.4) 7 9 2 5 5 5 1 5 ()()(4) 22(4)2(5 7 7 1 1 8 ( )( ) 30(19)5(10
11、) 6 4 9 1 (0.2)(200) (3)353 (1)1353 9 1 1 1 ()()0 14(3)2(5 7 3 8 1 1 1 ( )( ) 25(25)1(17) 4 2 4 1 1 ( )(100) (4)353 (1)2429 6 5 (15)(1) 4(1) 8.5(5) 1 1 ()() 94(149) (1)434 3 9 3713(22)(26) 5.9(2.4)(2.5)3.8 2 1 1 1 2 2 ()() 6.9()(4.8) 5 4 5 5 5 5 5 4 ()()(2) 13(4)3(1 7 7 5 1 1 ( )( ) 22(25)4(17) 6 4 5 1 (0.3)(3) (4)432 (1)2018 3 1 1 1 ()()0 10(3)3(1 6 8 2 1 4 1 ( )( ) 3(11)7(14) 7 3 3 1 1 ( )(80) (5)233 (1)2565 2 4 (19)(1) 8(6) 5(16) 1 1 ()() 130(11) (0)352 4 6 299(7)(27) 9.4(0.1)(3)4.9 2 1 1 4 9 6 ()() 4.9()(6.2) 9 8 4 7 5 5
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