1、一、计算题1. 2. )2()21( )51(3213.(-1.5)(-5)4. 41)5(6)5( 5. )()9(6)3( 6. )8()2014()25.1( 7. 8. )()43( 431)72(9.(-3.6)(-1)0 10.25(-11)(-4) 11.(9) 12.(- )32 745613.( )(0.26) 13214.(2)31(0.5)15. (4)(10)0.5(3) 16.( ) (1.8) 833417.(0.25)( )744(7) 18. ( )73( )( ) 54 12719.(8)4( )21(0.75) 20. 4(96)(0.25) 48121.
2、6.868(-5 )+6.868(-12)+6.86818 22. ( 5) (13)31 3123. )56()14874( 24. 25. )36()65( 412)9(26.(-78.6)(-111)0 27. 125(-36)(-8) 28.(9) 3229.( ) (0.26) 13230.(2)31(0.5)31.(4)(10)0.5(3) 32.( ) (1.8) 833433.(0.25)( )744(7) 34.( )( )73 54( ) 35.(8)1274( )(0.75)2136.4(96)(0.25) 48137. )7(981)9()125.0()98( 38.
3、4)6532(39. (5) (13) 31 3140.( 1 + )56 748114341.( )36 65439742.(36)( )946512743. 25 (25) 25 43 214145.(66)1 ( )(2131) 1546. (72)187+ 72 (72)( )4365 9772 有理数除法1. 18(3) 2.(24)6 3.(57)(3) 4.( ) 53525.(42)(6) 6.(+ )( ) 215 737.( ) 9 8. 0.25(139)819.36(1 )( ) 31 3210.(1)(4) 7411. 3( )( )76 9712. 0(3 )(7)
4、 4113. 3( ) 314114.(24 )(6)7615. 2(518) 1816. 1 (3)( ) 3 3117. ( ) ( )87143 8318.( )( ) 4387 6519.3.5 ( 0.5) 61 732120.1 (1 )72 651 (7) 8321. ( ) 5631214522 (2 ) 75 52751254 3523 (3) (4) (6) 24. 1.530.750.53( ) 4325. 1( ) 316226. 101( ) 3161227. 8( )5(0.25) 4128.7 1 (919) 214329. 25 +(25) 25( ) 43214130.(79)2 (29) 419