有理数混合运算专项练习题有复习资料

1、（HW）+ T）1.25X18X ( 21 旱3)- ( - 24) x( 3 8)(7)2+口+ (-1 )J12-X- 32X (-1) + (-2)-93+ 4-)X12+ ( -3 ) 23+ (-1 ) 20102009有理数专项练习350题（有答案）1. ( - 1) 2义2+ ( - 2) 34-4.(-4)2X(V)+30+ ( -6)_1- I4- 6x (2- ( -3) 2) X ( -2) 3( - 2) 3+ ( - 3) X ( -4) 2+2 - (- 3) 2. ( - 2)|l-xo.2|,- 22 -54- ( - 2) 3( - 1) 2+20- ( -2

2、) 1+ ( -4)& 口-(L0.54)X2- (-3) 29.9 ( -2-1) (一埒)-0.5X2DD乙，S乙.-32- ( -3) 2X ( -2) - ( -2) X ( - 1) 2|-A|2832(W3+ ( - 283) 2003 - 10 X ( - 2) 4-5 X ( - 1 ) 2002-5+ (1-0.2X、)-(-2)5_1- r- r- (1 - 2) +3X |3 - ( - 3) 2|.至(-)2( -2) 2+6- ( - 3) X24-4-54- 9x 3(一与 X ( -4 ) 2-0. 25X (- 5) X (一 4) TOC o 1-5 h z

3、82- 324-3+ ( 2- 3) X12 - ( - 1) 2010；-X+ ( xW/x (-1至)5 1351335 .(+4)+ (-24)-(-29 -(+34)4343(-)X-1-84- 1-2+41211；(2 一“)+ 一)25.26.27.9 4 1836 ；-32X4- E( -5) 2义(- 240+ ( - 4) xl-235423 ( -4) X ( -7+5) +0+.X(-,) X X乙291.1P (9 - 6) - ( - 8) + ( - 3) =3 - ( - 11) =14.33.原式=-2x - 9X 9-8+l=- 2x ( - 12) +1=1

4、8+1=19. 原式二-3+6 - 8+9=4；.原式二-9-9X ( - 2) - ( - 2) Xl2=-9+18-4=5.原式二-10X ( - 2) X5Xl=100.J. 1 n 11.原式=-3 - -5+ (1- 25) X ( - 2) = -3 - -5 - 25=-3+5+2及 25121 1.- 14 - (1- 2) -r3X|3- (-3)1=-1- 2+3 x|3-9|= - 1 - 2x 3x6=- 1 - 1= - 2.9 4.原式=4+6+6+4-5X 5x 9=4+3 - 4=3.-Ixi6- 0. 25X ( - 4) X ( - 5) X ( - 4 )

5、 2=- 10- 80=- 90.原式二 83 421.原式=-9 + 3+ ( 6- 6) X12- l=-6；Ax(区一心一国)Ax( -I) 122 .原式二 135 5 5 二135 二- 13.1 in n.原式二 4 - 3+ 4 - 3 =3 - 6= - 3； TOC o 1-5 h z 11 41.原式二 - 2 X 11 - 8X 2= - 2 - 4 - 6；8-9+2.原式二 36 x ( - 36) =- 1； HYPERLINK l bookmark0 o Current Document _131.原式二 - 9义 3- 25X ( - 5) +60X 4- 2=

6、-3- ( - 15+15 - 2)=-3+2= - 1.原式二 8-84- ( -4) X ( -2) +0=8 - 4=4.金T)/二.原式，2-24X4X64-5X (-1)= 2- ( - 5) 4-5X ( - 1) =2._i n n _15 _2n n 理.原式二-弓+ 4+ 4 - 2 = -4 4+ 4 - 4 = -2；18X19+17.原式二-18 X ( - 36) =718；i11 A J： 7 j _4 L TOC o 1-5 h z .原式=i - 16- ( - 64)xi6)4- - 8- 8- 2二i - ( 16+ 4)xi64- - 8- 8- 8=i

7、-1-4(-2)一昱X (昱一里)xAxA=. (l.i) =37.原式二840331 315 315；_4.原式二- 9+9+25X (5) - 0.09 + 0. 9= - 9+9+ ( - 20) - 0. 1= - 20 - 0. 1= - 20. 116934.原式二- 1000 - ( - 9 ) X 16- 100=- 1099.3555155351 57 535.原式二 2x 7+ 7x 2 - 2x 7= 7x(2+2- 2)= 7x (2)=2.1 . 136. 原式=-4+16X 8- 0.28 100= - 4+2 - 28= - 3014 15 337.原式二(18-

8、 18+ 18) X18+ (3. 95 - 1.45) X6=17.13至一 9A+59一7q 2 原式2619 b2619T9 4 3原式二-16X ( - 2) + ( - 1) + ( 8+ 3 - 4) X24=- 32+ 8x24+ 3x24 - 4x24= - 32+27+32 - 18=9.(-1)20053 13+( 4- 6- 8)X244-| -32+5| = - 1+24x24 4-1 -4|=44-4=1(1-9-4+18)原式二22x|x (-D 515 1=2 x 5x ( -1)= - 2.原式二-1 - L - 2+ 3x ( -3) = - 1 - -2-2

9、 - 1+4=3. TOC o 1-5 h z 324354657 7.原式二 2 x 2 x3 x 3 x 义4 x 5 x 5 x 6 义6 =12(-1.25) X-?- 23- (-U) 2 .2品,53=- 2-8X 16=- 2- 2=-5_11 _5_1111.原式=-5 - 3-(1 - 5x 3)X9=- 5 3-(1 - 3)X9=- 5 3- 6=-11 3. 原式二-10+84-4 - 12= - 10+2 - 12= - 20._9 _9_8_8.原式二(4- 2- 8)X( - 9)=( - 8)X( - 9)=3. 原式=3+ ( - 4) X84-44-2 -

10、94-9X ( - 1)=3 - 4+1=0._2_9_2133.原式=64 - 81 -5+4x ( -4) 4- ( -3) )=64 - 81 - 3 15) =64 - 77 15=- 13 15.25871 1 1 1 2 1 3.原式二 5x( - 12)- 21x( - 4)- 2x 2x 2= - 6+ 3 - 8= 8.151 IL1 ip.原式二(13 - 15+4 - 14) X ( - 5)=(13 - 25) X ( - 5)=4 13 ；. 原式二-10+32 - 12=10；113 2 21.原式二-16+( - 8)+(8)= 2- 8= 8；_42 J2.原式

11、二-3X 9 - 4X 3 - 8X 4= - 3 - 8= - 20 3；7 _82 255.原式=-8+ 4x 21+8= - 8+ 3+8= 3.6 18 76 17 256, 原式=-5+5+5x 8xi=- 5+ 5+ 5= 5；44,- 1 应- 4X - + 4+ TOC o 1-5 h z 57.原式二-27义 99 4-4X (3) = - 33=0；. 原式二-16+4-3X ( - 1) =- 12+3=-9.原式二L3+0= 1.3；原式二-13+12 - 7+38=-20+50=30；_1_1 _861.原式=-3 2+3. 5 + 一 2 9 - 9二0 一 3二-

12、3；62.原式=163 - 63 - 259 - 411 = 163+237=400._4_4 463.原式二- (- 0.04+0. 04) + (8 - 9X1) X 9= - 1 X 9= - 9；4145 27425_27164.原式二(-3义 9-4X8+1X 3)+|2X 16 - 8 IX2= ( - 3-2+3)88 I X2=- 2x4X2= -4；165.原式二 16x16X1 -号24+我4-与X%9-4.66.原式二-4+4+4 - 8 - 9=-13.67.原式=22 - 4 - 2+4=20；.原式=(-8) +4+9- 4=1；_4 2 n.原式二(3+8- 4

13、) X ( - 24) - 8=(- 32) - 3+66 - 8=23； TOC o 1-5 h z 71820.原式二(-30)4-( 30- 30- 30)口；_8_96.原式二(-9)义 5x ( - 27)义(- 4)=- 5 ；_1 _1.原式=(-1) - 6x (2-9) =6. HYPERLINK l bookmark25 o Current Document 115 15154.原式二-6+( - 12+ 8)= - 6+ 8二-15113_1_ 33.原式二(-2) 4- ( 4x 8) X 4+5=(-2) 4- 32x 4+5=- 2X32X 4+5=-48+5= 一

14、 43.原式二(-2) X9X ( - 1) - 124-3 - 1 = 18 - 12 + 2= 18 - 6=12.4333.原式=- 1X-9X9 - 2X ( - 2) IX ( - 4 - 2) X ( - 2)=-6x2=-9.原式二-9-9+9X1=-9；12-32+24.原式二- 24X96+( -8)=- 1-8二-9.1.原式二-8义8-8义 8+64二 一 1. TOC o 1-5 h z _7_5 J.原式二 9义36 - 6x36+ 4x36=28 - 30+27=25.原式=-5 - 4= - 9.原式二27X4 - ( - 27) X ( - 8) =27X (4

15、 - 8) =- 108._51_ J7.原式=(1 - 6) X (2-9) =6x ( -7) =6.111 11 1 J：L 1 120084.11+2 1+2+31+2+3+100= 1+2=1+2(可-而)=Toi._4 J 7 1.原式=3x 7x 4x 3x 3=i.2000 _1.原式二(- 1+3) + ( - 5+7) + ( -9+11) + ( - 1997+1999) =2X2 X 2=1000；88.原式二(11-13) + (12- 14) + (15 - 17) + (95 - 97) + (96 - 98) + (99+100) =- 2X 2+199= -

16、88+199=111；.原式二(1990+1) (2000 - 1) - 1990X2000=1990X2000 - 1990+2000 - 1 - 1990X2000=10 - 1=9；.原式二4726342+4726352 - (472634 - 1) X (472634+1) - (472635 - 1) (472635+1)=47 2 6 342+47 2 6 3 52 - 47 2 6 342+1 - 47 2 6 352+1=2；1 L 11 1998 999.原式二 2x (i - 3+3- 5+-+1997 - 1999)= 2x (1 - 1999)二 2x 1999=199

17、9；.依据题意可知第n项就是a=l+3 (n- 1),即有244=1+3 (n - 1),n=82，,一共有 82 个数，XV 1+244=245, 4+241=245-,.原式二(1+244) X824-2=10045；32001 -1q2000q2000o v q2000.设原式那么 3ni=3+m- J , /. 2m=3 - J , m= J ；1+3 3+4 4+5 5+6 6+7 7+8.原式二 1X3- 3X4+4X5- 5X6+6X7-731 1 1 1 1 1 1 1 1 1 1二(1+3)-(3+4)+(4+5)-(5+6)+(6+7)-(7+8)1 1 11 11 7二

18、1+ 3 - 3 - 4+一 7 - 8=1 - 8= 8.1.原式=-4- ( - 1) X ( - 6) X6+9=-4-1+9=4.原式二4+3-4-3=3-3=3 TOC o 1-5 h z 3 9 13913 03.原式二-2+ 4- 3(-8-1)= - 2+ 4- 3x ( -9)= 4+3= 41919_79.原式=5义 9+7X 9 - 12X 9= (5+7 - 12) X 9=0._1 J J-2) 4- ( - 4) =- 5 4- 2= - 5 4.1 _1 198.原式二-5 4-4+ 4- 4 4- ( -4) =-54-44- ( -2) + ( -4) =-5

19、4-5 2 1 35 12 399 .原式二- 3 6+2 5- 2 6+7 5= ( - 3 6- 2 6) + (2 5+7 5) = - 6+10=4；100.原式=-8X 4x 9=-8；710L 原式二(-12) X ( - 36)J J _9102.原式=6+( - 6)- 14x9 4J+ 4x ( - 36) - 6x ( - 36) - ( - 18) X ( - 36) =21 - 27+30 - 10=14；14(-9)= -1+1=0；17 1.原式=-1 - 0. 5X 3xL2- 9= -1+ 6 = 6.7_6 _49_6(- 2)x( - 7)+ 45x( -

20、7)1 1 J_ 11 I_49_6 7_6. (2 3- 3 2+i 45)4-( -1 6)=( 3- 2+45)x (- 7)= 3x (- 7)1 199811111105.105.n (n+1) -n n+1,.原式二i .一 小1. N+1998 . 1999口 . 1999二 1999.57 1106.原式-式1- 6x7=- 1+6=649.原式二i+( 16- 16)xi64- 9=i+( - 2)xi6x 49=-7x 49=.原式=-1 - 5X ( - 2) - 164- ( - 8) =- 1 - - 10+2= - 1+8=7.原式=-1-2- (1-6 ) X6=

21、-l-7=-8no,原式二 342=30.1.原式=(2 - 9) X1 - (1 - 6) =-7X (1 - 6) =- 7X 6=- 6.原式二-16X ( - 4) + (5 - 5) - 2+ ( - 1) =64+0 - 2 - 1=61.113.原式二(一 114.(-2134 -9115.+ (3-l)=_21+3l _171+ (-)(36 =2-I4 - 22)+ ( - 3) - ( - 3) 2。*乂与43=( -1 -4)=27+20 - 21=26；(-当-9X-|x8 3 9116.原式二-8x 4x 9+( - 5)88 3 9116.原式二-8x 4x 9+(

22、 - 5)81X5X ( - 4) =-8+1=-7.117.-32+5X ( - 5) - ( - 4)252+ ( -8)25=-9 - 8 - 16r ( - 8) - - 9 - 8+2-2515.118.原式二(24-9-4+18) 4-5= ( 24+5) 4-5= 245+54-5= 24+1=24;119.120.121.原式二-8X1 - 124-J _9 原式二-16义8+ 2x 原式二-16X ( - 4)1_1(- 4)=-8+48=403 15(-3)= -6 - 2=- 2；+ 5-5 - 2- 1=64 - 2 - 1=61.117151 33122.122.原式

23、二-16x ( - 8) X1+ 8 X12+ 3x12 - 4 x 12= 2+ 2+28 - 45=17+28 - 45=0.1 3 5 525123.原式二-2x 4x 4x 6二64；g 1124.原式二- 24X1 - 24X ( - 4) - 24X 6- 24X(-8) =-24+18-4+15=5.125.原式二（7金-假设）-磔+5片）IO O=-1-9= - 10；126 原式原2 - ( - 8+4 - 2) =32+8 - 4+2=38；.原式二-4+ ( - 3) X (16 - 8) +94-2=-4-24+4. 5= - 23. 512.原式二-5-3-9+7+2

24、=-9 2；.原式原6；4工_13_38.原式二- 6+ 5 - 6+ 5 = -6+10=4；1.原式二-9.2-7. 1+3+6. 2+2. 9= - 4. 2= - 4 5；.原式原.6+41. 8-12.6- 51. 8= - 19；1 19 2 3 4 5 91.原式二- 8+ 8 - 5 - 5 - 9 - 9= 4 - 2= 4.原式二(212 - 480) 4-5X ( - 1) =2684-5=_5 J 1.原式二-16+16 - IX 8x 5=- 4.0. 25x (-2 ) 3 - 4+ ( - 看)2+1+ ( - i ) 2008 1.3= 4x ( - 8) -

25、4X 4+1+1=-2 - 9+l+l二-2- 10+1 =-12+1=- 11；工_至1 一工2 至 g 上. ( 96 418) X ( - 36) = 9x ( - 36) - 6x ( - 36) + 4x ( - 36) - 18x ( - 36) =- 28+30 - 27+14= - 55+44=- 11.原式二-20+3+5 - 7= - 19； TOC o 1-5 h z J 211211.原式=(+6 5+4 5) + (+2 7- 1 7) - 5 3- 1=11+1 - 5 3 - 1=5 3；2 12 5140.原式二- 13X ( 3+ 3) - 0. 34X (

26、7+7) =- 13 - 0.34=- 13.34；5 1.原式=8x 4x5X64=50；_4 _4 J _16_22.原式二-27X 9x 9+4+ 3=- 3 + 3+4二-3；_1 21111112.原式=-1 - ( 2- 3) X3X ( - 2+27) - | 8- 4|=- 1+6x75- 8=-1+12 2- 8=11 8. 0 - P - ( - 1) + ( - 1.95) 3X0. 5X0- | -51+5=0- 1+1+0 - 5+5=0._1 _1.原式二-9X 3x 25X ( - 5) - ( - 60) X 4= -3X- 15+15= - 3X0=0.1 (

27、2+1)京3+1)15 (15+1)2 221146,原式= 1+2+2+2= 1+2X3+3X4+15X16二2义(1 X 2+2X 3+15X 16)ill A A _L 15=2x(i - 2+2- 3+15- 16)=2x(i - 16)= 8 .147.148.告(-6)145 1+工+ (二)48(睁一当8 6 429 5=4+( - 2) =2；X24”5-1+1 24- 8x24 - 6X24+4x24 4-5= - 1+1 24 - 9 - 4+18 4-5至 -L1 -1x( - 7)=-1 - 10 x( - 7)=-1+2= 2二 - 1+ 24 x 5= - 1+ 2

28、4= 24._14 J_ J 至 至 j M149.原式二 -1-( 5-10-5)x(-7)=-i - (10-10-10) 150.原式二(125 - 4X25 - 1)( - 16 - 24+16) =244- ( -24) =- 1.1.原式=-9+27 + 9- 4x4 - ( - 1)=-9+3 - 1+1= - 6.原式=4+3-1=6；_z.原式式-3. 5- 1.5- 1. 4+0. 4 +9=(- 6) -4-9=3.15_56135 6 _50_46 100.原式二47- (18 4 - 8 ) X 25 4-0. 46= 47 - 8 X 25 X 23= 5 X 46

29、=20；- 8+48 405.5 诬 128.原式= 44 = 16= 5 . TOC o 1-5 h z J _4_5.原式二-105义 5+105X 7 - 105X 3 - 178X6. 67+7. 67X 178= - 21 X3+15X4 - 35X5+178X (7. 67 - 6. 67)二- 63+60 - 175+178=0.原式原3 - 59 - 35+37= - 34；13 _旦 至13 7.原式二12-(5)x 12x(6)=12- 24= 8._5 _4377_17.原式二-3x 3x( - 5)x 4+( - 8)= 3+( - 8) = - 3 .原式二4 -4-

30、94- ( - 1) +0=4 - 4+9+0=9.-8X1X%5X ( -g) +15x4.原式二 2 253=-2-9+5=-6.原式二(-5) X ( - 0.75 - 0. 125 - 0. 125) = ( - 5) X ( - 1) =5.原式二-20 - 18 - 12+10= - 40；3 1.原式二- 4- 4-3=-4；1.原式二-2x48=- 24；至 A.原式二-2.5X17X4X0. 1=-2X17X4X 10= - 17；.原式=33. 1 - 10. 7+22. 9 - 2. 3=43；.原式二-36H-4+5X1. 2= - 9+6=-3；_9_11.原式二-2

31、x( - 9x 9+o. 8) 4- 5= 2x 5x 3二 2；1.原式=-4 - 6+2+3 X 3=-4- 6+2+1 =-7(1-0.5) xlx 10- ( -2 ) 2 - ( -1 ) 3 J171.3= - 1 - 0. 5X 3x6+1 =-1.*2,(14 +(3)+( 一2)2x(-3)_1 _1=-3+ 6-4X3=- 14.1 7)173.原式二-1 - ( - 2) X 3 X ( -6) =- 1+1=0；211.原式二-25 - - 8+ 5+ ( - 4)义(-2)=-25 - ( - 8+ 5)=-25+ 5= - 17 5；卫金 1(1-1) 19 _9

32、U (一 工)_19_1 _19.原式第Xa(-4+51 1 x2-U=-2x2 x_2-16-江-第二 16 (或 16).1 旦.原式二(21+6X3X3 - 25) X 7=50X 7= 7 TOC o 1-5 h z _4 J _4 1J _8.原式二 9x(-2)- 9- 24-( - 4)= - 3 - 9-1- 9= - 9.原式二- 9 - 50 + 25 - 1=- 12；1_41原式二 - 1 - 2 - ( 1 - 6)义(9 - 4)=6 ._4_1_4_4 10 - 3+ ( - 5) - ( - 22) - 54- ( - 4) = - 3 - 5+4+20=21

33、- 5=20 5；21 _1110H- 2- ( - 1+1 3) X6=104- ( 2- 3) X6=104- 6X6=10X6X6=360；18+324- ( -2) 3- ( -4) 2X5=18+32H- ( -8) - 16X5=18 - 4 - 80=18 - 84= - 66；& 里2222-7X(- 7 ) +19X ( - 7 ) -5X(- 7) = (- 7+19 - 5) X ( - 7) = (- 12+19) X ( - 7 )22=7X ( - 7 ) = -22.原式=8 - 2X9+36=8 - 18+36=26.2 原式=4+ ( - 4) 4- ( -

34、3) + 16义(-16) =4+6 - 1=9.原式二-12-4二- 16；1原式= - l+2x9-9=- 1；原式二 - 10+8X9 - 12=-10+72-12=50原式二-8 - 2X ( -3) +3-1=- 8+6+3 - 1=0_1 J原式二48义(-6) +48 义 4+48 X ( - 12)= - 8+36 - 4=24.(+7) + ( -8) - (+3) - ( -4) =7-8-3+4=11-11=0；1131721 2- 1 3 - 2 3+ ( - 2) X (-3)=-13- 3x ( - 3) X ( - 3) = -13-4 3=- 6；1 1 1 1

35、 _1_- 36X ( 9- 6- 18) = ( - 36) X 9+ ( - 36) X ( - 6) + ( - 36) X ( - 18) = - 4+6+2= - 4+8=4；11 17 1- I3- (1 -0.5) X 3x 2 - ( -3) 2= - 1 - 2x 3x (2-9) =-1+6=6；( - 0. 25) X 1.25X ( - 4) X ( - 8) = ( - 0. 25) X ( - 4) X1.25X ( - 8) =1X ( - 10) =- 10；( - 1) 10X 2+ ( - 2) 34-4=lX2+ ( - 8) 4-4=2 - 2=0.2

36、J 1 卫工竺.原式:-9 - (3- 5x 2) X ( - 2) =-9+ 5 X 2=- 5 .原式二2- 2- 12- 12=(-1) -i=-2；28 3Q27 _14.原式二-1 - ( 36- 36+ 36- 36)x( -36)=-1+11=10；_9 _4_9.原式=4+9义(-4)= 9x( - 4)=-1；_1.原式=3-2-8+ 4x4=-127._1.原式=-1+8X 4-4=-3.1.原式二-9+9x ( - 27) 4- ( - 1) =- 9+3 =-64-4-9|+|24+9|乂(-5) 桨-165 -.原式二 53二 15 二 15_1 _1.原式二 - 1

37、 - 2x 3x6=-2；_1.原式二-1 - 0. 5X 3x ( -6) =- 1 -0.5X ( - 2) =0.15 J J.原式二-8 - 9 - ( 4 - 8) X ( - 5) = -8-9+6- 1= - 12.1. - 22+ ( - 3) 4-3- ( -3) 24- ( -2) =-4+ ( -9) -94- ( -2) =-8.5.5乂1乂 9 一 25| 5 _ 7_ 23.原式二 2 9168 = 32 832_1.原式二(30 - 13) X ( - 0. 125) 4- 8=- 17；_1 2 1.原式= 2x 3= 3；.原式二-1 - 25二-26；z 3

38、 TOC o 1-5 h z .原式=3 5-3-10=5_435 400.原式二-9x3X44- ( - 5) X 3= 27 .51 1 4.原式二-1 + 25X ( - 3) +0. 2=15+5=15.J 1_4_ _9-9_4 14.原式二2义(-9X 9-0.8) x( - 21)= 2x( - 5)x( - 21)二35.原式二-9+5X(-6) - 164- ( -8) = - 9 - 30+2= - 37；27 233_3.原式二9 - 8 X 9 - 6X 2=9 - 4-9=4.原式二100 - 5X36+8X 10=100 - 180+80=0.3433220.原式=

39、- 2x - 9X 9-8=- 2x - 4 - 8= - 2x ( - 12) =18.30.-19y1x ( -36)29.29.(-0.5) - (-+2.75- (+吟) 42(-0. 25) 3X (-2) 4+7X ( - 1) +5+ ( -8) +4X ( - 0.125)633.34.35.36.37.38.一3. 875 X-3分 ( - 3) 2+(-2X5) 3-(1 55(0. 775- 104)X噂3 o 31；(-5) 2X7-1 9)x； 1_4(-5) - 0. 324- | - 0. 9 |.(-4)2-( - 0.1)2.121 2x 7- ( - 7)X

40、2 2+( - 2)4-151-22+ ( - 2) 4X ( 2) 37 5 3|0. 28|4- ( - 10) 2(9- 6+18) X 18+3. 95X6 - 1.45X6.39.-( -1) +( t)?+(吟+iW)Z占 J 43 1 3X2440.40.41.(-1 ) 2005+ ( 4 -2 2 - (8+6- 4)6- 8) X244-| -32+5|.X24H-5 X ( - 1 ) 2009342.42.-I1 - -2+ (1 -0.2H- 5) X ( - 3)43.43.(七)(-1.25)44.(T)x - 23-?5乙3（玛） （一为(1-745.-5+ -

41、 3- (1 - 0.24- 5)(-3) 246.47.-10+84- ( - 2) - - ( - 4) X ( - 3)；3X ( - 1) ,0+ ( - 22) X I ( - 2) 1+4 + 2 - | ( -3) 2|4- ( -3) 2X ( - 1) H；43- (-3) 4- (-1) +2.5+2受(-4) +(2 凄-27%41515尹(-2-1)-枭(- I-5) -0.5+2X。X244- ( - 5)；X244- ( - 5)；2 .代埒113 苗石( - 10) +8X ( -2) 2 - ( -4) X ( - 3)；1 2- 0 . 2524- ( -0.

42、 5) 3+ ( 8- 2) X ( - 1) ,0:222- 3 X ( - 3) J - 4X (1-3) - 84- ( 3) 2；原式二-4-94-8- l=-4-94- ( -9) =-4+1= - 3._1 _1 _1 111(+10 3) + ( - 11.5) + ( - 10 3) - (+4.5) =10 3- 11.5 - 10 3- 4. 5=10 3- 10 3 - 11. 5 - 4. 5= - 16；_9 _4_4 _4( - 81) + 4x 9+ ( - 16) = ( - 81)义 9x 9+ ( - 16) =- 16H- ( - 16) =1；_41 J

43、- 32 - -5-0. 24- 5x ( - 2) 2= - 9 - - 5 - 5x 4x4= -9- -5- 1=-9+6 =-3；工2至 1 A 1 J24X ( 6- 4- 8) + ( - 3) 24- ( - 72) =24X 6- 24X 4- 24X 8+ 9x ( - 72) =4-18- 15 - 8=4 - 41= - 37.100 17 19 _425 100 97 25 322 725 224 25 J原式式(9 - 5x17)- 5x18 x 56=( 9 - 5)- 3 x 56=( 45 - 3)x 56= 45 x 56=2 9_5_14原式二-1+25X

44、( - 3) - 1=- 152 2_1228.原式二9X 3x 3- 6 4- ( - 2) = (4 - 6) X ( - 2) =41 1.原式二-1 - ( -8) X5+44- 4= - 1 - ( - 40) +1=40.原式=(-20) + (+3) + (+5) + ( - 7) = (+3) + (+5) + ( - 20) + ( - 7)=8+ ( -27) =- 19；. 111 _ 11_ 1 _ 11,11822.原式二6 77 88 9 9 10=6 9 9 10=( 6 10)+( - 9)+( - 9)= 30+( - 9)= 45；232,原式二-30+25

45、二-5；2 J 1 J233.原式=3 2+ ( - 2) +3+2 3=3+3=6；21 J A J 3 52+ 6=1；X (-4)3 = - 11 - 1= - 122 1-1二-i+i. 5x 3x 生 8：2+ 6=1；X (-4)3 = - 11 - 1= - 122 1-1二-i+i. 5x 3x 生 8：234,原式=3X4 - 4x4 - 8x4+ 24x4= 3- 1 -至 王乜.原式二-184-9 - 8+3= - 2+3 - 8= 8.9X (一%-6X(7) TOC o 1-5 h z .原式二92(1+0.5)( -4).31. - 22 - (1 - 5x0.2)

46、 + ( -2) 3= - 4+ (1 -0.04) -4-8= - 3. 88.原式=-4-3=-7；.原式=4+4X 2- 16x16=4+6 - 1=9. 原式二-1+(-5) X | - 8+21 - 16X ( -2) =- 1+ ( -5) X6+32 =-1 - 30+32=1.()二绥()X巡二.42)8442)2814.原式二-4 - 28+29 - 24= - 27；至.原式二-2 6x (5 - 4+8)=- 2 ；.原式=-4+1= - 3；J9 (-A)%246,原式二(-9X 9- 0.8) x 2x 21 二 35；J J J_.原式=(- 4+ 3- 12) X

47、36=- 27+60 - 21=12；.原式二-1 - 0= - 1.原式二(-2) 4X - 5+ ( - 1) 9+ ( - 3) 3=16X ( - 6) + ( - 27) =- 96 - 27=- 123.原式二-1.原式=5 - ( - 1) =6.11 11.原式二-9 20 x (0. 375+0. 625)二-9 20.2 2 A.原式=9义 9x 9x 9= 81.254.原式=- 49+2X9 - ( - 6) X 9= - 49+18+54=23.46255.原式二-9 - (9-4) X (2 - 5) = - 9 - 5X 5= - 15256. - 16+23+

48、( - 17) - ( - 7) =- 16+23 - 17+7= - 33+30= - 3；_1_1J_112 12 11212 12 11( -8)+( - 4)-( - 8)-(+ 2)-(-4)= - 8+8- 44- 2=(- 8+8)- 4+ 4 - 2= 4 - 2= 4；13_5135( -2+ 4- 8) X(- 16) =(- 2) X(-16)+ 4x ( - 16) - 8x ( -16) =8 -12+10=18 - 12=6；11 17 1. - 14+ (1 - 0.5) X 3x (2 - ( - 3) 2) =- 1+ 2x 3x (2 - 9) =- 1+

49、6= 6.原式二-20-14+18+13=-3.原式=- 9X (- 1)+75 + 25=12.原式二- 3X8 - 36 - 8X3=- 84；2_12217 1112 J. U J 111263.原式= 5+( - 5)- 8 4-(-4)- 2x 2x 2= 5x( - 12)- 8x(-7)- 2x 2x 2 264.原式=100+4 - (3+9) X2=104 - 24=80；_15_2 5265.原式二(-4 X4+5x 4 ) X (-1) = (- 15+2.5) X ( - 1) =12.5.原式二IX ( - 48) - 6x ( - 48) + 4x ( - 48)

50、= - 48+8 - 36= - 76；.原式二-1+40 - 64= - 25；7 上 _16 J _15 _16 _U268,原式=9+15 - 3 = 9x 7 - 3二 3；525 _41269.原式二-1- (2 - 6) X5=- 1 - 10+ 6 =6,1 J n270 .原式二- 8x24 - 3x24+ 4 X24+l=32.2.原式二(-3. 5- 1.5- 1. 4+0. 4) 4-9= ( - 6)+9二 - 3；1 3 5 2 5.原式二-2+4- 6- 3=- 4. 原式=0. 75+3. 25+0. 125 - 0. 125=4；.原式=-1-lX (6) X3

51、 - 2=2._4 J. - 32 - ( - 2) 2- (1 - 5x 4) 4- ( -2) =-9- 4-1(1 - 5) 4- ( - 2) = - 9 - 4 - 5x ( - 2)二-9 -(4+5) =- 13.2.25 29 H g g1276.原式二-4 x 8 - 8+7+7+ 7+6 4= - 25+6 4=4(或 -18 4).112 4 1 1277.原式二-3+2- 3+5- 2=- 5；278.279.280.281.282.283.U7 原式二-6 +3 - 2+ 4 = 4；11原式=ii+iox( - 5)=-ii；_1 J _8 J原式二 4x 2x(5

52、)=-5；1 国原式二-1 - 6x52=- 6；13原式=9+12义(- 2)卫原式二-84- ( - 8)+4X 2=9.J _4_1_X ( - 8) X ( - 9) =-84- ( - 16) =-8X ( - 16) =128._4_5J_284.原式二(-36) X ( - 9) + ( - 36) X 6+ ( - 36) X ( - 12) =16 - 30+21=7.12 A 1 1285,原式二 36小( 6)24-36x 4= 36x 4=144.11 21 1 L 1 2008.原式二 1 - 2+ 2 - 3+ 3 - 4+2008 - 2009=i - 2009=

53、2009.原式二20 - 3义(8+6) +1=20 - 42+1= - 21.原式二25-3义(9-6)+5=25-9+5=21；17289.原式二-16+ 16+ 8 X 24+ 3x24 - 4 X24=-1+33+56 - 90= - 91+89=-277290.原式二 33x ( - 1 - 2 - 50+20) = 33x ( - 33) = - 7.+ 1 + 1 + 1 +.T_T=3 5 T-1 - (-) 2008 X ( - 8 ) 2008 x ( - 8) - 2 2 x ( -1) +23325.原式二85( -8-2 ) 2 义(-1)+23 - 1 - 100X

54、 ( - 1) +23=55=- 1+20+8=27. 原式二-0.5- 15+17 - 12= - 27. 5+17= - 10. 5；.原式二(-4-8) -6=- 12-6=- 18；.原式8+108 - 30+21=81；4.原式=-1.6+ 9义(-27) -4=- 1.64- ( - 16) =0. 1；_1 _6.原式=(1-1) 4-7=- l+7=- 7； TOC o 1-5 h z _5 J至 .原式二(9 - 4 - 25) X 6x 4x16= ( - 20) X 6x 4x 16= - 600.-i - 41-i.原式二4X9- 13 - 2-64=2；.原式二(-

55、9) - 4- (1 - 5) X ( - 2) = ( -9) - (4+5) =5._1 J 1 1_1_1. (- 11 7) X 5+ (+5 7) X 5+ ( - 137 3) 4-5+ (+113 3) 4-51111 1 1 1 1=(-117)x 5+(+5 7)x 5+( - 137 3)x 5+(+H3 3)x 5 TOC o 1-5 h z Ill 1111=5x ( - 11 7) + (+5 7) + ( - 137 3) + (+113 3)= 5*- 6+ ( - 24)= 5x ( - 30)二-6. HYPERLINK l bookmark39 o Curr

56、ent Document 22 3_1335-8 - -7+ (1 - 3x0. 6) 4- ( - 3) = - 8 - - 7+ (1 - 3x5)X ( - 3) 21=-8- -7+(1- 5) X ( - 3)J 11 J _4=-8 - - 7+ 5x ( - 3) = - 8 - ( - 7 - 5) = - 8+7 5- - 5 HYPERLINK l bookmark27 o Current Document 1 2525.原式二(-2) + 32* 4+5=- 64X 4+5= - 400+5=-395；.原式=1+ ( - 2) - 1=-2.原式二16X ( - 2)

57、+ (- 8+4)=-324- ( - 4) =8.1.原式二(-2. 5) 2X ( - 1) + 8x0. 5=6. 25X ( - 1) X8X0. 5=-25113 国.原式二25 X ( 4+ 5+ 4) =25X 5=30； TOC o 1-5 h z 7 5 7 14+10- 4925.原式=4+4+ 77 - 2=1+ 7 - 2=14= - 14；571 5 1750342.原式二-ix ( - 17)+17+10=17义 7xio 二 7 ；343.原式二0率(-2-1)+0.4X (-61) XlA-r (0.12 510 X 89)344.3545卷 X (-卜)+0.

58、4X (-学)=3144 X 04- (0. 125X8) 9X0. 125(-4-2.5) xixg T)x|-2.5x1二 35=355 X8= ( - 2 - 3) X8= - 40.-(皂英)X24345.原式二 16168 34=- 1+33+56 - 90=- 2._至J A A196 5 7 14 25 5 1347.原式二 4 2x( 25+ 16x3,2)+ 25 = - 4+ 2x 25x 196= - 4 4= -1.112A J348.原式式(-9) X 9 - 0.8 4- ( - 5 )=(- 5) X ( - 12)二 4；_3_64 66349.原式二 1-24

59、 义(24+24 - 24)=0；_9 J_ 10_6350.原式=(12+ 12- 12) X ( - 60) =12x ( - 60) =-30；14 _15_7_351.原式=(7.537 - 4.037) X12 - 36X ( 18- 18+ 18) =42 - 12=30.55.56.57.(-2)-2x 23- 1 4x ( - 21) - ( - 2) X ( - 1) X ( - 4).(一9 +0.2+1 号*x ( - 1 ) 201055 7：(-3) 3 /x (-,) 2+4- 22X(7)71OO- 24+|6 - 10| - 3 X ( - 1 ) 2009.-

60、3尸 7X WlOl60.61.(-13) + (+12) + ( - 7) + (+38)；(Y)+ (-2)+3. 5+ (一4)(+163) - (+63) + ( - 259) + ( - 41).-(0.2 ) 2+t + 23 - 32X ( - 1 ) 6.(一？)254；- 3+ ( -1) 2+ ( - 22) X0.125+l+g+ |2X ( -1.25 ) 2 -31X2248(T)2。(T)4X(-1)8-(T+W-身 X2442834- 22 - ( - 22) + ( - 2) 2+ ( - 2) 3 - 3267.22+ ( - 4) + ( - 2) +4；1