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初一数学上册计算题(410道题)

发布时间:2013-10-12 13:38:20  

初一数学上册计算题(410道题)

1??(1)???2?= (2)?-1?= 2??23

(3)??1? = (4)???2? = 94

(5)??1?2003= (6)?23???3?= 2

32(7)?13?3???1?= (8)?32???3? =

(9)(?3)?(?2)= (10)?32?(?)2= 231

2

?5?23(11)??2??2???2??23 (12)????(?4)2?0.25?(?5)?(?4)3 ?8?

(13)42????2??1?43462 (14)?????2??2?3??5??5???1? ?7??4?

2331?2?(?3)2 6

123232(17)[1?(1?0.5?)]?[2?(?3)] (18) ()??(?3)2?(?32)233(15)???2??3???1??0???2? (16) ?14???

22(19)???2??3???1??0???2? (20)?3?(?2); 233

(21)(?10)?[(?4)?(3?3)?2]; (22)(?1)4?(1?0.5)?

(23)?0.52?

32221?[2?(?2)2]; 3114??22?4?(?1)3?; (24)(?2)2003?(?2)2002; 429222009(25)(?2)?3?[(?4)?2]?(?3)?(?2); (26)(?0.25)

(27)0.25???2?3?42004. ??2?2?122??4?????1? (28)??2??22?????10? 4????3??

2

332532?1??1?2.2???0.3????????3????1? (30)??2????05(29)?3?12.????2????8? ?3??2?

(31)8 ?23?(?4)3?1

8(32)(5?6)?(7?9)

(33)(?3)?(?9)?(?8)?(?5) (34)15?(?

(35)?535?) 2652312?9?17?3 (36)?24?(?4)2???1????3? 6342

41(37)25?(?0.125)?(?4)?(?)?(?8)?1 54

2011?a2010-(3ab?a)(38)如果a?1?(b?2)?0,求(a?b)的值 2

(39)已知|a?1|与|b?4|互为相反数,求ab的值。

2111101011

(41)|?(?1)3?(?1.2)2?0.42 ?|??

9212111112

7115255551

(42)[45?(??)?36]?5 (43) ?(?)???(?)?(?)

91267127123437772111

(44)(1??)?(?)?(?) (45)1???

481283234

(40)2(46)??1???

?11??1?

?? (47) ?22?????8?(?2)2

?32?

(48)?64?31?5

58

(50)100???2?2

???2??????

2?3??

?(?2)3

(52)(?2)2012?(?0.5)2013?(?6

1314)?7 (54)(?3)2

?21????2?2

??4?22?1?

4?3?????3??

(56)(?20)?(?3)?(?5)?(?7) (58)(?6.5)?(?2)?(?1

3

)?(?5)

(59)若a?7,b?3,求a + b的值. (61) (-12)÷4×(-6)÷2; (63)????11?2???11?1??3??1?4????22??????34??????14??

;(65)??49????91????5????9?; (67)1?(?2)??2?3?5; (69)????2?3???????8?

5??

???0.25? ; 2

(71)(?3)2

?21???2??1?

??3???4?224????3??

(73)??5???8???(?4)2?0.25?(?5)?(?4)3 ?2? (49)3.1416?6.4955?3.1416?(?5.4955) (51)(?5)?71133?7?(?73)?12?(?22)

(53)(?1)3???(1

)2?(?1)?1???(?2)?(?1)20122?2

16?

(55)(52312?3?4)?(?12)

(57)3712

4?2?(?6)?(?3

)?1 (60)已知│a+1│与│b-2│互为相反数,求a-b的值.

(62)????5?

8???(?4)2?0.25?(?5)?(?4)3

2

; (64)(?3)2?214?????2?3???4?22?????1?

3??

(66)?7?13?6?20; (68)(-5)×(-7)-5×(-6);

?2

(70)?2??3??1??1?2??????2?????2??.

(72)(512?233?4)?(?12)

(74)??1???12???114???1??3??1?

??22??????34??????14??

;

;

1?2??1? (75)(?3)2?2?????4?22????; (76)(-5)×(-8)×0×(-10)×(-15); 4?3??3?

(77)(-3)×(-4)×(-5)+(-5)×(-7) (78)(-0.1)×(-1)×(-100)-0.?01×(1000). 2

13281111×(-1)×(-)×(-); (80)- + --)×(-20); 44372345

1117537(81)(-3)×(-0.12)×(-2)×33; (82)(- + - )×(-36). 34396418

521211 (83)-×(12-2-0.6) (84)(+)×|-|×2×(-5); 652343

121(85)(-1)×3(-)×(-1) (86) ?9?(?11)?12?(?8) 833

13(87)(-2)×(-)= (88)0×(-13.52)= (89)(-1)×a = 37

24(90)(-3.25)×(+)= (91)(-185.8)×(-36)×0×(-25)= 135

34(92)(?4)?(?7)?(?25) (93) (?)?8?(?) 53

341415(94)?(8??) (95)(?)??(?8) 4315204

31223(96)(-)×0.125×(-2)×(-8); (97)8?(?)?(?4)?(?)?(?8)? 73595

2(98)(-0.25)×0.5×(-4)×4; (99)(-4)×(-18.36)×2.5; 7

251(100)(-)×(-18)+(-)×(-3)×2; 9115

665(101)(-47.65)×2+(-37.15)×(-2)+10.5×(-7). 111111(79)2

(102)[(-2)×(-4)+(-5)]×[-3-(-2)×(-3)].

224312411?1??(?0.6)?(?3) (104) ?(?)?(?)?(?)?(?) 353523523

27(105)1?(?2)?2?3?5 (106)??(?)??1?3 33(103)1

(107)(-23)+7+(-152)+65 (108)|+(-(-)+|―)| (109)|

(112)38+(-22)+(+62)+(-78) (113)(-8)+(-10)+2+(-1)

(114)(-(-8)+47+18+(-27) )+0+(+)+(-)+(-) (115)

(116)(-5)+21+(-95)+29 (117)(-8.25)+8.25+(-0.25)+(-5.75)+(-7.5) (118) 6+(-7)+(9)+2 (119) 72+65+(-105)+(-28)

(120)(-23)+|-63|+|-37|+(-77) (121)19+(-195)+47

(122)(+18)+(-32)+(-16)+(+26) (122)(-3)-5

(123)(-0.8)+(-1.2)+(-0.6)+(-2.4) (124)(-8)+(-3)+2+(-)+12

(125)5+(-5(-6.37)+(-3)+4+(-) (126))+6.37+2.75

(127)(-12.5)-(-7.5) (128)(-26)―(-12)―12―18

(129)―1―(-2)―(+2) (130)(-20)-(+5)-(-5)-(-12)

(131)(-23)―(-59)―(-3.5) (132)|-32|―(-12)―72―(-5)

(133)(-(+10)―(-7)―(-5)―4)―(-8)―8 (134)7

(135)(-(+5)―3―(-3.2)―7 (136)7)―(-7)―7

(137)(+6.1)―(-4.3)―(-2.1)―5.1 (138)(-)―(-1)―(-1)―(+1.75)

(139)(-3)―(-2)―(-1)―(-1.75) (140) -8-5+4-3

5(141) -43++(-)― (142) 0.5+(-)-(-2.75)+

(143)(+4.3)-(-4)+(-2.3)-(+4) (144)(-0.5)-(-34)+6.75-52

(145)(-9)×(-13)×(-0.26) (147)(-2)×31×(-0.5) 3 (146)(148)(-4)×(-10)×0.5×(-3) ×(-5)+×(-13) (149)

(150)(-)×(-0.25)×(-)×4×(-7) ×(-1.8) (151)

37(152)(-)×(-)×(-) (153)(-8)×4×(-)×(-0.75)

1(154)4×(-96)×(-0.25)× (155)(7-18+14)×56

(156)(6―(-36)×(9+6-12) 4―9)×36 (157)

(158)(-(-66)×〔1-(-〕 )×(8--0.4) (159))+(-)

(160)25×(+-(-25)×+25× (161)-+)×72

385(162)(-24)÷6 ×(2-)×(-)×(-) (163)18÷(-3) (164)

(165)(-57)÷(-3) (166)(-5)÷5 (167)(-42)÷(-6)

(168)(+21)÷(-7) (169)(-13)÷9 (170)0.25÷(-8)

(171)-36÷(-1(-1)÷(-4)÷ )÷(-) (172)

(173)3÷(-)×(-) (174)0÷[(-3)×(-7)] (175)-3÷(-)

6(176)(-24)÷(-6) (177) 2÷(5-18)× (178)1÷(-3)×(-)

(179) -((2-8+4)÷(-4) 8×(-14)÷(-8) (180)4-8)÷(-6) (181)

(182) -3.5 ×(-0.5)×÷ (183) -1÷(-1)×1×(-7)

55555(184)6×(--)÷ (185)÷(-2)-×-÷4

(186)0.8×11+4.8×(-7)-2.2÷7+0.8×11 (187)2÷(-7)×7÷(-57)

(188)(-???)×(-15×4) (189)?????(-2.4)

(190)[15-(1÷1+3]÷(-1) (191)×(-5)÷(-)×5 (192) -(÷(-) (193) -13×(-13)-×0.34 -+-)-0.34×+×

(194) 8-(-25)÷(-5) (195)(-13)×(-134)××(-)

(196)(-4(-16-50+35)÷(-2) 8)-(-52)+(-44)-38 (197)

(198)(-0.5)-(-34)+6.75-52 (199)178-87.21+4321+5321-12.79

(200)(-6)×(-4)+(-32)÷(-8)-3 (201)--(-)+|-1|

(202)(-9)×(-4)+ (-60)÷12 (203) [(-)-1+]÷(-)

375(204)-|-3|÷10-(-15)× (205)-1×(-)÷2

(206)(23-32+118)÷(-16)×(-7) (207)-4×(8-23-0.04)

(208)-2×32 ( 209)-22-??1? (210)34-43 3

(211)?13-2×??1? (212)??3?÷??4? (213)?2×??2? 3222

(214)?3 +??4? (215) ??2?×??2?×??2? (216)?2×32-??2?3? 233452

(217)??2??2+??2?+23 (218)?22-(?3)×??1?-??1? 23333

(219)????

2223??2+??? (220)0-??3?÷3×??2? 23321212????1?????????2?0.8÷ (222)-×-÷3? (221)?2×

(223)??24×(-?+1) ×0 (224)6+2×??? 2

2(225)-10+8÷??2?-4×3 (226)-1-???0.4????2.5?? 55

(227)??1?-(1-0.5)×25

21233??? (228)??2?×??×? 313×(229)4×??3?+6 (230)???38×??2?×??? 127

(231) -72+2×??3?+(-6)÷??? (232)??2?÷(-8)-??

2

24

3

×(-

?

22)

(233)??5??42???3?×(

2

2

2

2

??

7513242

?-3×]÷ ?)×??7? (234)??2?-2[??81145

2

(235)??6?÷9÷??6?9? (236)36×???

(237)-{??3???3?0.4???1??(?2)?} (238)-14+(1-0.5)×

3

???

?1?2?

??

12

×[2×??3?] 3

(239)-4×??1?7??6?+??5??3???2? (240)-33-8???2??1+??3?×??2?÷

3

3

3

3

2

3

????

1 0.25

(241)(-5.3)-(+4.8)+(-3.2)-(-2.5); (242)??

2

5

4

21??3??

????8???

33??4??1

2

(243)-10+8÷(-2)-3×(-4)-1; (244)-1-(1-0.5)×3×[2-(-3)]. (245)?1

?1?313??71

??????24??5 (246)?99?36

72?24?864??

2

2

2

(247)15x?4x?10x (248)?p?p?p

(249)?5a?a?(?7a)?(?3a) (250)xy?3xy?2yx?yx

n

n

n

n

2

2

2

2

12

12

]} ab?0.4ab2?a2b?ab2 (252)3a?{2c?[6a?(c?b)?c?(a?8b?6)

??1?(x?5)???x?4255236(256) (257); (258)

(251)

?2y?x?0?

7 (260) (259)?

x?5y??5?

?

?2x?3y?17

?3x?5y?9

(261) ?

?2x?3y??6?

??3?x?1??4?y?4? ?

5y?1?3x?5??????

(262)3x?2y?6 (263)

??m

n

??13??23?

?m?n?3??34

(264)

?8u?3v?2?0

?

?6u?5v?7?0

(265)3?2x?9?4x (266)2(2x?3)?5(x?1) (267)19?3(x?7)?0

2?x2x?1x?53x?2

(269) (270)3x?2?2x?5 ??1?

2322x?4?2?3x

(271)??2 (272)3(y?2)?1?8?2(y?1) (273)?1??1

34

(268)

?5x?3?2x?x?2(x?1)?4

2(1?3x)??

(274)?1?4x (275)?7??9 (276)?3x?1

5?x?1?4???3?2

(277)

(1)(2)

1

7x?(4x?3)?2x2?mn?4mn; (278)3x2????; (279)(2xy?y)?(?y?yx) ; 4

(280)(4a?2a?6)?2(2a?2a?5) 其中 a??1. 22

(280)

(281)

(282) 11312?a?2(a?b2)?(a?b2) 其中 a??2,b?. 22233已知 A?3a?2a?1,B?5a?3a?2,求2A?3B. 22a?(2a?2); (283)?(5x?y)?3(2x?3y); (284)2a?(a?b)?2(a?b); (285)1?(3xy?x)?[?2(2x?3yz)

(286)?3xy?2xy?3xy?2xy; (287)5(a?b)?4(3a?2b)?3(2a?3b); (288)3a?(5a?ab?b)?(7ab?7b?3a)

(289)(4x?x?5)?(5x?x?4),其中x??2

(290)(xy?3223222222222221123y?)?(x?xy?1),其中x?,y? 332234

23232323(291)求单式7xy、?2xy、?3xy、2xy的和。

(292)?0.2ab?6ab?1.4ab?4.8ab?ab (293)

2222222121212x?x?x 24648ab?a2 332(294)2xy?2xy?4xy?xy?4xy?3xy (295)?9?6ab?6a?7?

22(296)3a?5a?2?6a?6a?3,其中a??

21 223223(297)当x??4,y?2时,求代数式?3xy?3xy?x?3xy?3xy?y的值。

(298)?2?x?3y??3?2x?y??4?2x?3y? (299)4x?7x?3??5x?3x?4 22????(300)18m?5n??20m??3n?6???2?2m?n?3? (301)2x???3y??4x??3x?y??? 先化简,再求值。

(302)5x?3y?5x2?22???4y2?7xy其中x??1,y?2.

7x?15x?13x?2; ??2?324

0.8?9x1.3?3x5x?1. ??1.20.20.3?(303)10(x?1)?5; (304)(305)2(y?2)?3(4y?1)?9(1?y); (306)

(307)17(2-3y)-5(12-y)=8(1-7y); (308)3x-26+6x-9=12x+50-7x-5;

3x-1.50.2x-0.1(309)15-(7-5x)=2x+(5-3x) (310) +4 0.20.09

5y?4y?15y?5 (312)4(2y+3)=8(1-y)-5(y-2); ??2?3412

x?33x?43x?22x?12x?1(313) (314) ??1???515245(311)

(315)2x?110x?12x?12(x+1)5(x+1)???1 =-1 (316)364

2x?53?x ?64(317)x?4?2?5x (318)1?

(319)?(x?3)?3(2?5x) (320)4x?3(20?x)?5x?7(20?x) (321)已知x=-2是方程2x-∣k-1∣=-6的解,求k的值。

(322)2x?1x?12y?15y?7 ??1 (323)?1?6346

(324)如果方程2x?a?x?1的解是x??4,求3a?2的值.

(325)已知等式(a?2)x?ax?1?0是关于x的一元一次方程(即x未知),求这个方程的解. (326)7x?6?16?3x (327)2(3?x)??4(x?5) 2

(328)x?75x?81?1?2??1 (329)2x??x?(x?1)??(x?1) 2?243?3

(330)已知x?2是关于x的方程2(x?m)?8x?4m 的解,求m的值。

(331)当x?2时,代数式2x?(3?c)x?c的值是10,求当x??3时,这个代数式的值。

(332)(1)当m为什么值时,代数式23m?5m?8的值比代数式的值大5? 73

(333)当x=—3时,代数式(2?m)x?2m?3的值是—7,当x为何值时,这个代数式的值是1? (334)已知方程3(3x?3)?1?2x的解与关于x的方程3x?m?

(335)如果方程m?27的解相同,求m的值. 4x?4x?21的解与方程4x?(3a?1)?6x?2a?1的解相同,求式子a?的值 . ?8??a32

3?xx?8(336)(337)3(x?1)?2(x?2)?2x?3 ??1 23

(338)x?1?xx?2??1 36(339)x?1x?3??50 0.20.01

(340)已知y1?6?x,y2?2?7x,若①y1?2y2,求x的值;②当x取何值时,y1与y2小?3; (341)已知axa?3?8?4是关于x的一元一次方程,试求a的值,并解这个方程。

2(342)若x?3??3y?4??0,求xy的值。

(343)若关于x、y的方程6x?5y?2?3Rx?2Ry?4R?0合并同类项后不含y项,求R的值。 (344)10(x?1)?5 (345)

(346)2(y?2)?3(4y?1)?9(1?y) (347)7x?15x?13x?2 ??2?3240.8?9x1.3?3x5x?1 ??1.20.20.3

(348)y=1是方程2?(m?y)?2y的解,求关于x的方程m(x?4)?2(mx?3)的解。

(349)方程2?3(x?1)?0的解与关于x的方程13k?x?3k?2?2x的解互为倒数,求k的值。 2

(350) 6x?7?4x?5 (351) 2?(1?y)??2

y?1y?23x?12x?4 (353) ?2??2??3(x?1) 2632

12x?1(354) 设y1?x?1,y2?,当x为何值时,y1与y2相等? 54(352)y?

y?1y?2 ?2?25

2x1.2?x0.4x?0.90.1x?0.50.03?0.02x(357) ??1 (358)??0.70.30.50.20.03

1?1?1?1???(359)???y?3??3??3??1 (360)2?4x?3??5?6?3x?2??2?x?1? 2?2?2?2???

1352x?3x?2(361) (3?x)?3(2?x)?36. (362)??1 52464

0.1x?0.40.2x?1(363) . ?1?1.20.3(355)6(1?x)?5(x?2)?2(2x?3) (356)y?

(364)

(365)

(366)

(367)

(368)

(369)

(370)

(371)

(372)

(373)

(374)

(375)

(376)

(377)

(378) 7x?11?0.2x5x?1. ??0.0240.0180.0121?x?10?7x??1?x12?1?(x?)??3??(2x?)?. 33623????1?1?12x??x?(x?1)??(x?1) 2?2?3 3(x?3)?5?2(2?5x); 2?4x?3??5?6?3x?2??2?x?1?; 135(3?x)?3(2?x)?36. 5242x?3x?2??1; 642x?1x?3??5; 43x?12x?2; x???2332x?15x?1??1; 364x?32?3x x+2.5??482x1.2?x??1; 0.70.30.4x?0.90.1x?0.50.03?0.02x; ??0.50.20.0311x?(0.17?0.2x)?1; 0.70.031?0.5x0.2x?10.3x; ??0.30.30.02

(379) 0.1x?0.41.2?1?

0.2x?1

0.3; (380) 0.1x?0.020.1x?0.002?0.1

0.05?0.3,

(381) x?430%?x?2

50%

?1.7; 1

(382) x?3(x?4)

0.5?0.125

?5x?19, (383) 0.2x?0.450.25?0.015?0.01x

0.015?0.5x?2.5

(384) 111x?29{7[5(3?4)?6]?8}?1. (385) 1?1?2?x?x?1??3??4??x?2?3??????3?2??x?3; ?4

(386) 112311(2x?3)?19(3?2x)?13x?13

. (387) x?3?4??14(x?3?(x7)?33???16(x?7

). (388) 3(x?1)?13(x?1)?2(x?1)?1

2

(x?1);

(389) 3(x-1)-2(2x+1)=12 ; (390) 5(x+8)-5=6(2x-7);

(391) 3(k?1)?13(k?1)?2(k?1)?1

2

(k?1)(392) 3(y-7)-2[9-4(2-y)]=22;

(393) 5?7x8?

7?5x

7; (394) 1?yy?2

3?y?3?

2

; (395) 6y?

34?4y?5

4 ; (396) 52x?7x?2

4x?x?3?3?

6

; (397) x?40.2?x?3

0.5

??1.3; (398) 32[23(x

4?1)?2]?x?2; (400) 3x?15?1?x?35

; (402) 2(x+2)=5(x+9)-2(x-2); (403)

23

x?3?5(x?1)?1 ; (405) 15%x+10-x=10×32% ; (407) 12y?1?4y?2

5?y; (409)

|5x+4|+2=8; (399)12(1?x3)?23(3?x2

)?1 (401)x?1?xxxx

2?4?8?16

(404) 2x?12x?510x?17

2?3?4?1

406)

2x?15x?3?16

?1 408)

0.3?30x3(5?2x)110.3?6.5?0.05?2

410)x?x?12x?2

2?3?

3

( ( (

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