四年级脱式整数混合计算专项练习498题34页(有答案)

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2020年10月22日 06:02
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2020年10月22日发(作者:谭嗣同)



整数混合运算专项练习498题(有答案)


(1)3108÷42×15

(2)(359﹣42)×53+64

(3)40+30×2

(4)(40+30)×2

(5)(326﹣248)×24÷26

(7)30÷5×30×5

(8)30÷5×30÷5

(9)(175+335)÷(20﹣5)

(10)306+19﹣95

(11)(340﹣290)÷25

(12)38×(63﹣24)

(13)420÷30×352

(14)230﹣180÷18

(15)333﹣192﹣108

(16)450﹣230+112

(17)45×(78﹣22)
(18)140+25×12

(19)(375﹣125)÷25

(20)918÷(324÷12)

(21)125×83+17×125

(22)13×[400﹣(360+40)]

(23)4×378×25

(24)725×29﹣275×29

(25)480÷[(25﹣17)×12]


(26)312×47+688×47

(27)78﹣(84+60)÷12

(28)144÷16×370

(29)190×(896÷28)

(30)1000﹣48×16

(31)414÷18+72

(32)378÷42×31

(33)960﹣623÷89



(34)63×(330÷6)

(35)(432﹣12)÷70

(36)780÷26+73

(37)546﹣9×34

(38)96×(325﹣295)

(39)(953﹣749)÷17

(40)25×(28+42)

(41)640÷(29+51)

(42)108×39+247

(43)319×28﹣549

(44)489×17+198

(45)278×39+154

(46)135×24﹣108

(47)347×18﹣259

(48)(306+269)×12

(49)35×(120+68)



(50)437×28﹣739

(51)900﹣78×6

(52)55+(367﹣289)

(53)(75+225)÷60

(54)350÷(19+51)

(55)456×3﹣176

(56)815﹣247+85

(57)960×2+163



(58)249+325﹣408

(59)306×5+166

(60)534×8﹣999

(61)20×(320﹣180)÷28

(62)340﹣360÷30×12

(63)120÷[840÷(240﹣212)]

(64)[112﹣(75+25)]×50

(65)840+720÷60

(66)840﹣720÷12

(67)2400﹣315÷9

(68)67×(450﹣420)

(69)(437+163)÷20

(70)875+875+25

(71)236×(39+11)

(72)(68﹣57)×678

(73)600﹣405÷15



(74)12×(317﹣296)

(75)735÷15×4

(76)(512+136)÷24

(77)476÷(392÷14)

(78)345﹣128﹣72

(79)25×16

(80)720÷16÷5

(81)148﹣954÷53



(82)45×19×2

(83)(93+25×21)×9

(84)507÷13×63+498

(85)(39﹣21)×(396÷6)

(86)848﹣640÷16×12

(87)(44+52)÷(34﹣18),

(88)(78﹣23)×(108÷9),

(89)980﹣980÷(262﹣234),

(90)(362﹣122)×(24+39),

(91)723﹣(521+504)÷25

(92)384÷12+23×371

(93)[192﹣(54+38)]×67

(94)138×25×4

(95)704×25﹣509

(96)25×32×125

(97)32×(25+125)



(98)178×101﹣178

(99)84×36+64×84

(100)(58+37)÷(64﹣9×5)

(101)2800÷100+789

(102)(947﹣599)+76×64

(103)36×(913﹣276÷23)

(104)240+60×18

(105)(177+88)×14



(106)23×15×9

(107)400÷8×36

(108)57×12﹣560÷35

(109)1500﹣32×45

(110)(13×125)×(3×8)

(111)(12+24+80)×50

(112)(45+38﹣16)×24

(113)500﹣(240+38×6)

(114)(845﹣15×3)÷16

(115)12×[(49﹣28)÷7]

(116)(238+136)÷34

(117)284+28+116,

(118)180+74+27+126+120+73,

(119)2×l25×8×5,

(120)125×8×835,

(121)33×46+46×17,




(122)973×5×2,

(123)68×99,

(124)(36+24)÷15+18,

(125)744÷[(92﹣84)×3],

(126)62×(183﹣175÷5),

(127)164×50÷82×48,

(128)(196+197+207)÷30,

(129)480÷32+25,


(130)280÷[100÷(350÷14)],

(131)[450﹣(78+82)]×16,

(132)34×20﹣840÷2

(133)988÷(100﹣74)

(134)406﹣384÷48+562

(135)25×1 8÷15+356

(136)125÷5×107

(137)30×(48+700÷14)

(138)75+240÷(120﹣105)

(139)50﹣(820+108)÷29

(140)920﹣650÷50

(141)13×(517﹣488)

(142)800÷25×4

(143)179+245+55

(144)169﹣37﹣63

(145)45×13×2


(146)(308+204)÷32

(147)720÷45×36

(148)382﹣234÷26

(149)918+128×15

(150)168÷(2×14)

(151)(699﹣132)÷81

(152)(460﹣220)÷60,

(153)13×(28+16),



(154)75+240÷(20﹣5)

(155)(90+360)÷(20﹣5),

(156)24﹣0÷24+24,

(157)240+240÷(240﹣200),

(158)148÷(36+36÷36),

(159)(450﹣133+23)×18,

(160)44×60÷(8×5),

(161)205﹣264÷(301﹣277),

(162)[297﹣(62+85)]×14

(163)672÷[(26﹣14)×8]

(164)(725﹣235)÷14×23

(165)42×[169﹣(78+35)],

(166)72÷[960÷(245﹣165)],

(167)50﹣(820+108)÷29

(168)(540÷20+27)×15

(169)25×12+35×40





(170)(121﹣38)×15﹣840

(171)97+(680﹣120×3)

(172)1800﹣54×27+150

(173)3774÷37×(65+35)

(174)540﹣(148+47)÷13

(175)(308﹣308÷28)×11

(176)(10+120÷24)×5

(177)(238+7560÷90)÷14



(178)21×(230﹣192÷4)

(179)35×(76﹣59)﹣159,

(180)1519﹣(14+17)×24,

(181)890﹣608+(79﹣47),

(182)(387+525)÷(89﹣65),

(183)3956﹣(698+1956),

(184)97+98+103+102,

(185)605﹣360÷12,

(186)56+19×23,

(187)950+560÷14×28,

(188)(70+80)÷(68﹣18),

(189)(216﹣25×8)+198,

(190)(160×40﹣3800)÷65,

(191)329×21÷47,

(192)(789+1143)÷84,

(193)430﹣32×(27﹣18),



(194)1000﹣962÷(13+24),

(195)(123+99)×(47﹣28),

(196)758﹣408×16÷32,

(197)780÷(123﹣97)+492

(198)354÷59×(147+353)

(199)(127﹣27×2)÷73

(200)837÷27+75×40

(201)462﹣75×4÷25



(202)28×12﹣12×20

(203)89﹣(14×3﹣32)

(204)(136﹣72)×12÷16

(205)(178+80)÷(142﹣99)

(206)(373﹣185)×18÷47

(207)408÷12×150,

(208)(537+918÷27)﹣272,

(209)(540÷20+270)÷27,

(210)136+728÷(748﹣692),

(211)720÷(22﹣12)×2,

(212)[558﹣(195+38)]÷25,

(213)360×[480÷(236﹣116)],

(214)400﹣400÷50

(215)38×(480÷16)

(216)130+70×16

(217)(240+760)÷40




(218)340﹣240÷20×5,

(219)182÷[(36﹣23)×7],

(220)12×[(310+410)+18],

(221)180×[840÷(140﹣112)],

(222)390﹣31×5,

(223)27×12÷54,

(224)128+78÷26,

(225)43+378÷14,



(226)240÷16÷3,

(227)108×7÷36,

(228)(124﹣85)×12÷36

(229)(75+240)÷(20﹣5)

(230)95+240÷(62﹣47)

(231)(321﹣183)×12

(232)325÷13×(266﹣250)

(233)420÷(205﹣191)×45

(234)406×(29﹣186÷31)

(235)385+512÷64,

(236)736÷32×28,

(237)650÷(13×5),

(238)1000﹣918÷18,

(239)300×3+900÷15

(240)(400+320)÷24

(241)25×(22+288÷16)



(242)360÷45×72

(243)(600﹣384)×20÷36

(244)(259+281)÷90

(245)(1000﹣640)÷72

(246)(210+415)÷25

(247)96×(325﹣295)

(248)(28+62)×23

(249)864﹣360÷24



(250)27×(36﹣28)

(251)360÷(9×8)

(252)(124﹣85)×12÷26

(253)(59+21)×(96÷8)

(254)800﹣600÷12

(255)780﹣480÷16

(256)99×75

(257)75×12+280÷35

(258)48×(32﹣17)÷30

(259)(564﹣18×24)÷12

(260)490÷[210÷(750÷25)]

(261)(37﹣15)×(8+14)

(262)(124﹣85)×12÷26

(263)736÷32﹣946÷43

(264)592÷(71﹣34)×16

(265)340﹣240÷20×5


(266)(540÷20+28)×15

(267)735÷15×7

(268)(704+258)÷37

(269)900﹣600÷30

(270)420÷70×254

(271)18×(537﹣488)

(272)635﹣(125+68)

(273)400+612÷12



(274)(338+565﹣201)÷3

(275)(139﹣114)÷5

(276)97﹣12×6+43

(277)35×3+64×5

(278)(45﹣9)×(183÷61)

(279)230﹣735÷35

(280)98+5×38

(281)(45﹣26)×32

(282)228+252÷28

(283)95﹣90÷15×5

(284)493﹣157﹣43

(285)101×96

(286)(488+32×5)÷12

(287)4000÷125÷8

(288)308﹣(240+360÷60)

(289)840÷[(205﹣198)×4]


(290)21×(718﹣672÷48)

(291)125×8÷25

(292)240×5﹣320

(293)256÷16×12

(294)490﹣15×25

(295)1160÷29×28

(296)2507﹣76×28

(297)2760÷(92÷4)



(298)46×32﹣586

(299)97×23﹣350÷14

(300)(564﹣18×24)÷12

(301)783+21×15﹣369

(302)[504﹣(318﹣214)]÷25

(303)304÷19+25×26

(304)87﹣221÷13+94

(305)(630﹣2×35)÷70

(306)(168﹣144)×(32÷4)

(307)4357+6503﹣2498,

(308)376×18÷47,

(309)6495﹣2618÷14,

(310)12096÷27÷16,

(311)600÷(100÷25)×4,

(312)812﹣34×(50﹣32),

(313)200﹣28×5


(314)(144﹣72)÷8

(315)16×(527﹣488)

(316)54+783÷27

(317)205﹣58+42

(318)(312+436)÷34

(319)45×12÷27,

(320)162﹣162÷9,

(321)476÷(17+11),



(322)(501﹣177)÷36,

(323)50+60×37,

(324)578﹣(78+98),

(325)(422+28)÷(375﹣345),

(326)570÷5÷2,

(327)(841﹣41)÷25×4

(328)560÷[490÷(34+36)]

(329)360÷(30+30)×2

(330)224÷[(2+6)×2]

(331)198﹣12×9+63,

(332)165﹣165÷15,

(333)490﹣(63+63÷9),

(334)(227﹣188)×12÷26,

(335)375+450÷18×25,

(336)45×101,

(337)(480+240)÷24﹣12,




(338)(480+240)÷(24﹣12),

(339)(197+243)÷22×6,

(340)158+36+42+264,

(341)258×12﹣58×12,

(342)25×64×125,

(343)4620+(401﹣438÷73),

(344)52×80﹣720÷9,

(345)(124﹣85)×12÷26,



(346)780÷(223﹣145),

(347)47×101﹣47,

(348)(180﹣140)×7﹣160,

(349)128+164+72+36,

(350)2000÷125÷8,

(351)65×142﹣42×65,

(352)(64﹣224÷14)×12,

(353)14×(38+405÷27),

(354)75+360÷(20﹣5),

(355)(24×15﹣65)÷5,

(356)16×8÷16×8

(357)480÷32﹣11

(358)(618+22)÷20

(359)376﹣18×19

(360)752﹣52+48

(360)375﹣(158﹣81)



(361)774÷(27+16)

(362)98+5×63

(363)54×(71﹣33 )

(364)900÷(90÷2)

(366)26×13﹣198÷18,

(367)128﹣28×3+17,

(368)600﹣(697÷41+274),

(369)96×15+936÷72



(370)560÷(2×7)

(371)764﹣45×3

(372)108×15÷4,

(373)574÷(266﹣184),

(374)24×(7+15),

(375)105×21+79,

(376)78×12+276÷12,

(377)586×28﹣486×28,

(378)50×12×25,

(379)563×[272﹣(512﹣339)],

(380)2000÷(1760﹣30×56),

(381)(145+55)÷20

(382)420÷60×154

(383)774÷(27+16)

(384)230﹣735÷35

(385)480÷32﹣15




(386)244﹣63×3

(387)456+322+178,

(388)(780﹣724)×15,

(389)973﹣245﹣255,

(390)1800﹣1800÷15,

(391)(75+360)÷(20﹣5)

(392)28×6+84÷7

(393)75+360÷20﹣5



(394)1500÷(15+35)×14

(395)786+500÷(320﹣270)

(396)320÷(1228﹣12×101)

(397)(48+84)×(97﹣77)

(398)218﹣18+25×4,

(399)1301+405÷45,

(400)(100+153÷3)×5,

(401)21×(75+153)÷38,

(402)336÷[7×(36÷9)],

(403)99×999+999,

(404)48×125,

(405)20×7×5×3,

(406)600÷30+20×6,

(407)75×12+280÷35,

(408)(684﹣18×24)÷12,

(409)490÷[210÷(750÷25)],





(410)586﹣426÷71

(411)650÷13×34

(412)110+584﹣375÷15,

(413)14×18+520

(414)780÷26+73

(415)546﹣9×34

(416)96×(325﹣295)

(417)(28+62)×23



(418)900÷(90÷2)

(419)21×(230﹣192÷4)

(420)118+306÷17+265

(421)540÷45×(65+35)

(422)(119+181)÷(1000﹣975)

(423)354+246÷6,

(424)572÷4×5,

(425)54×(40﹣64÷16),

(426)7280﹣280×12,

(427)1650﹣78﹣222+350,

(428)1230÷6+15×13,

(429)41×(982+760÷38),

(430)
1472÷[﹙2100﹣1364﹚÷23],

(431)26×4﹣125÷5,

(432)(124﹣85)×12÷26,

(433)280+(280﹣280÷70),




(434)(75+240)÷(20﹣5),

(435)540÷(442﹣32×11),

(436)250﹣250÷50,

(437)125×88,

(438)653﹣219﹣81﹣53,

(439)99×45+45,

(440)325÷13×(276﹣250),

(441)774÷(17+26)



(442)320﹣770÷11

(443)490÷70×154

(444)305﹣89+164

(445)451﹣(164﹣88)

(446)(93+111)÷34

(447)344﹣6×28,

(448)(227﹣57)÷34,

(449)78+240÷4,

(450)315﹣135÷9,

(451)105﹣13×6+57,

(452)(45+240)÷(20﹣5),

(453)197﹣12×9+61,

(454)38+160÷(40﹣30),

(455)(224﹣185)×12÷26,

(456)(25+40)×4,

(457)135﹣135÷15,





(458)(55+250)÷(30﹣25),

(459)125×25×32,

(460)2300﹣165﹣35,

(461)25×204,

(462)125×(8+4),

(463)3200÷25÷4,

(464)56×32﹣46×32,

(465)432÷54+17×54,



(466)99×78+78,

(467)35×(320﹣170)÷50

(468)25×33×4

(469)(36×54﹣984)÷24

(470)150÷[90÷(67﹣52)]

(471)61×99

(472)13×56+56×87

(473)261﹣(210+165)÷15

(474)12×15+567÷21

(475)102+150÷25+5

(476)966÷(27+19)×45

(477)64+992÷(426﹣394)

(478)35×(800﹣600÷25)

(479)(76+38×30)÷76

(480)14×[752﹣(152+28)]

(481)360×[1000÷(408+92)]


(482)600×[(135﹣45)÷90]

(483)9846﹣87×(360÷60)

(484)508×345÷(1526﹣1521)

(485)24×25+876÷73

(486)956﹣946÷43﹣406

(487)9×4×15

(488)176﹣(76+38)

(489)18+(159+82)



(490)31+992÷32 (498)963÷[732﹣(496+227)],

(491)900÷25÷4

(492)160﹣60÷2

(493)8507﹣(153﹣48)+5369,

(494)645﹣45×(50﹣38),

(495)(32+360÷45)×72,

(496)412÷(607﹣36×14),

(497)[591﹣(134+48)]×26,


整数混合运算498题答案


(1)3108÷42×15
=74×15
=1110
(2)(359﹣42)×53+64
=317×53+64
=16801+64
=16865
(3)40+30×2
=40+60
=100;
(4)(40+30)×2
=70×2
=140;
(5)(326﹣248)×24÷26
=78×24÷26
=1876÷26
=72;
(7)30÷5×30×5
=6×30×5
=180×5
=900;
(8)30÷5×30÷5
=6×30÷5
=180÷5
=36;
(9)(175+335)÷(20﹣5)
=510÷15
=34
(10)306+19﹣95
=325﹣95
=230;
(11)(340﹣290)÷25
=50÷25
=2;
(12)38×(63﹣24)
=38×39
=342;
(13)420÷30×352
=14×352
=4928;
(14)230﹣180÷18
=230﹣10
=220;
(15)333﹣192﹣108
=333﹣(192+108)
=333﹣300
=33.


(16)450﹣230+112
=220+112
=332
(17)45×(78﹣22)
=45×56
=2520;
(18)140+25×12
=140+300
=440;
(19)(375﹣125)÷25
=250÷25
=10
(20)918÷(324÷12)
=918÷27
=34;
(21)125×83+17×125
=(83+17)×125
=100×125
=12500
(22)13×[400﹣(360+40)]
=13×[400﹣400]
=13×0
=0;
(23)4×378×25
=4×25×378
=100×378
=37800;
(24)725×29﹣275×29
=29×(725﹣275)
=29×450
=13050;
(25)480÷[(25﹣17)×12]
=480÷[8×12]
=480÷96
=5;
(26)312×47+688×47
=(312+688)×47
=1000×47
=47000;
(27)78﹣(84+60)÷12
=78﹣144÷12
=78﹣12
=66
(28)144÷16×370
=9×370
=3330;
(29)190×(896÷28)
=190×32
=6080;

(30)1000﹣48×16
=1000﹣768
=232;
(31)414÷18+72
=23+72
=95
(32)378÷42×31
=9×31
=279;
(33)960﹣623÷89
=960﹣7
=953;
(34)63×(330÷6)
=63×55
=3465;
(35)(432﹣12)÷70
=420÷70
=6
(36)780÷26+73
=30+73
=103;
(37)546﹣9×34
=546﹣306
=240;
(38)96×(325﹣295)
=96×30
=2880;
(39)(953﹣749)÷17
=204÷17
=12;
(40)25×(28+42)
=25×70
=1750;
(41)640÷(29+51)
=640÷80
=8
(42)108×39+247
=4212+247
=4459;
(43)319×28﹣549
=8932﹣549
=8383;
(44)489×17+198
=8313+198
=8511
(45)278×39+154
=10842+154
=10996;


(46)135×24﹣108
=3240﹣108
=3132;
(47)347×18﹣259
=6246﹣259
=5987
(48)(306+269)×12
=575×12
=6900;
(49)35×(120+68)
=35×188
=6580;
(50)437×28﹣739
=12236﹣739
=11497;
(51)900﹣78×6
=900﹣468
=432
(52)55+(367﹣289)
=55+78
=133;
(53)(75+225)÷60
=300÷60
=5;
(54)350÷(19+51)
=350÷70
=5
(55)456×3﹣176
=1368﹣176
=1192;
(56)815﹣247+85
=568+85
=653;
(57)960×2+163
=1920+163
=2083;
(58)249+325﹣408
=574﹣408
=166;
(59)306×5+166
=1530+166
=1696;
(60)534×8﹣999
=4272﹣999
=3273
(61)20×(320﹣180)÷28
=20×140÷28
=2800÷28
=100;


(62)340﹣360÷30×12
=340﹣12×12
=340﹣144
=196;
(63)120÷[840÷(240﹣212)]
=120÷[840÷28]
=120÷30
=4;
(64)[112﹣(75+25)]×50
=[112﹣100]×50
=12×50
=600
(65)840+720÷60
=840+12
=852;
(66)840﹣720÷12
=840﹣60
=780.
(67)2400﹣315÷9
=2400﹣35
=2365;
(68)67×(450﹣420)
=67×30
=2010;
(69)(437+163)÷20
=600÷20
=30;
(70)875+875+25
=875+(875+25)
=875+900
=1775
(71)236×(39+11)
=236×50
=11800;
(72)(68﹣57)×678
=11×678
=7458.
(73)600﹣405÷15
=600﹣27
=573;
(74)12×(317﹣296)
=12×21
=252;
(75)735÷15×4
=49×4
=196;
(76)(512+136)÷24
=648÷24
=27
(77)476÷(392÷14)
=476÷28
=17;
(78)345﹣128﹣72
=345﹣(128+72)
=345﹣200
=145;
(79)25×16
=25×4×4
=100×4
=400;
(80)720÷16÷5
=720÷(16×5)
=720÷80
=9;
(81)148﹣954÷53
=148﹣18
=130;
(82)45×19×2
=45×2×19
=90×19
=1710
(83)(93+25×21)×9
=(93+525)×9
=618×9
=5562;
(84)507÷13×63+498
=39×63+498
=2457+498
=2955;
(85)(39﹣21)×(396÷6)
=18×66
=1188;
(86)848﹣640÷16×12
=848﹣40×12
=848﹣480
=368
(87)(44+52)÷(34﹣18),
=96÷16,
=6;
(88)(78﹣23)×(108÷9),
=55×12,
=660;
(89)980﹣980÷(262﹣234),
=980﹣980÷28,
=980﹣35,
=945;

(90)(362﹣122)×(24+39),



=240×63,
=15120
(91)723﹣(521+504)÷25
=723﹣1025÷25
=723﹣41
=682;
(92)384÷12+23×371
=32+8533
=8565;
(93)[192﹣(54+38)]×67
=[192﹣92]×67
=100×67
=6700;
(94)138×25×4
=138×(25×4)
=138×100
=13800
(95)704×25﹣509
=17600﹣509
=17091;
(96)25×32×125
=25×4×(8×125)
=100×1000
=100000;
(97)32×(25+125)
=32×150
=4800;
(98)178×101﹣178
=178×(101﹣1)
=178×100
=17800;
(99)84×36+64×84
=84×(36+64)
=84×100
=8400
(100)(58+37)÷(64﹣9×5)
=95÷(64﹣45)
=95÷19
=5
(101)2800÷100+789
=28+789
=817;
(102)(947﹣599)+76×64
=348+76×64
=348+4864
=5212;
(103)36×(913﹣276÷23)
=36×(913﹣12)
=36×901


=32436
(104)240+60×18
=240+1080
=1320;
(105)(177+88)×14
=265×14
=3710;
(106)23×15×9
=345×9
=3105;
(107)400÷8×36
=50×36
=1800
(108)57×12﹣560÷35
=684﹣16
=668;
(109)1500﹣32×45
=1500﹣1440
=60;
(110)(13×125)×(3×8)
=(8×125)×(3×13)
=1000×39
=39000;
(111)(12+24+80)×50
=12×50+24×50+80×50
=600+1200+4000
=5800
(112)(45+38﹣16)×24
=(83﹣16)×24
=67×24
=1608;
(113)500﹣(240+38×6)
=500﹣(240+228)
=500﹣468
=32;
(114)(845﹣15×3)÷16
=(845﹣45)÷16
=800÷16
=50;
(115)12×[(49﹣28)÷7]
=12×[21÷7]
=12×3
=36
(116)(238+136)÷34
=374÷34
=11
(117)284+28+116,
=(284+116)+28,
=400+28,
=428;
(118)180+74+27+126+120+73,
=(180+120)+(74+126)+(27+73),
=300+200+100,
=500+100,
=600;
(119)2×l25×8×5,
=(2×5)×(125×8),
=10×1000,
=10000;
(120)125×8×835,
=1000×835
=835000,
(121)33×46+46×17,
=46×(33+17),
=46×50,
=2300;
(122)973×5×2,
=973×(5×2),
=973×10,
=9730;
(123)68×99,
=68×(100﹣1),
=68×100﹣68×1,
=6800﹣68,
=6732
(124)(36+24)÷15+18,
=60÷15+18,
=4+18,
=22;
(125)744÷[(92﹣84)×3],
=744÷[8×3],
=744÷24,
=31;
(126)62×(183﹣175÷5),
=62×(183﹣35),
=62×148,
=9176
(127)164×50÷82×48,
=164÷82×50×48,
=2×50×48,
=100×48,
=4800
(128)(196+197+207)÷30,
=(393+207)÷30,
=600÷30,
=20;

(129)480÷32+25,


=15+25,
=40;
(130)280÷[100÷(350÷14)],
=280÷[100÷25],
=280÷4,
=70;
(131)[450﹣(78+82)]×16,
=[450﹣160]×16,
=290×16,
=4640
(132)34×20﹣840÷2
=680﹣420
=260;
(133)988÷(100﹣74)
=988÷26
=38;
(134)406﹣384÷48+562
=406﹣8+562
=960;
(135)25×1 8÷15+356
=450÷15+356
=30+356
=386
(136)125÷5×107
=25×107
=2675;
(137)30×(48+700÷14)
=30×(48+50)
=30×98
=2940;
(138)75+240÷(120﹣105)
=75+240÷15
=75+16
=91;
(139)50﹣(820+108)÷29
=50﹣928÷29
=50﹣32
=18
(140)920﹣650÷50
=920﹣13
=907;
(141)13×(517﹣488)
=13×29
=377;
(142)800÷25×4
=32×4
=128;

(143)179+245+55


=179+(245+55)
=179+300
=479;
(144)169﹣37﹣63
=169﹣(37+63)
=169﹣100
=69;
(145)45×13×2
=585×2
=1170;
(146)(308+204)÷32
=512÷32
=16;
(147)720÷45×36
=16×36
=576
(148)382﹣234÷26
=382﹣9,
=373;
(149)918+128×15
=918+1920,
=2838;
(150)168÷(2×14)
=168÷28,
=6;
(151)(699﹣132)÷81
=567÷81,
=7
(152)(460﹣220)÷60,
=240÷60,
=4;
(153)13×(28+16),
=13×44,
=572;
(154)75+240÷(20﹣5)
=75+240÷15,
=75+16,
=91;
(155)(90+360)÷(20﹣5),
=450÷15
=30
(156)24﹣0÷24+24,
=24﹣0+24,
=24+24,
=48;
(157)240+240÷(240﹣200),
=240+240÷40,
=240+6,
=246;
(158)148÷(36+36÷36),
=148÷(36+1),
=148÷37,
=4;
(159)(450﹣133+23)×18,
=(317+23)×18,
=340×18,
=6120;
(160)44×60÷(8×5),
=44×60÷40,
=2640÷40,
=66;
(161)205﹣264÷(301﹣277),
=205﹣264÷24,
=205﹣11,
=194
(162)[297﹣(62+85)]×14
=[297﹣147]×14,
=150×14,
=2100;
(163)672÷[(26﹣14)×8]
=672÷[12×8],
=672÷96,
=7;
(164)(725﹣235)÷14×23
=490÷14×23,
=35×33,
=1155
(165)42×[169﹣(78+35)],
=42×[169﹣113],
=42×56,
=2352;
(166)72÷[960÷(245﹣165)],
=72÷[960÷80],
=72÷12,
=6.
(167)50﹣(820+108)÷29
=50﹣928÷29
=50﹣32
=18
(168)(540÷20+27)×15
=(27+27)×15
=54×15
=810
(169)25×12+35×40
=300+1400
=1700;

(170)(121﹣38)×15﹣840




=83×15﹣840
=1245﹣840
=405;
(171)97+(680﹣120×3)
=97+(680﹣360)
=97+320
=417;
(172)1800﹣54×27+150
=1800﹣1458+150
=342+150
=492
(173)3774÷37×(65+35)
=3774÷37×100
=102×100
=10200;
(174)540﹣(148+47)÷13
=540﹣195÷13
=540﹣15
=525;
(175)(308﹣308÷28)×11
=(308﹣11)×11
=297×11
=3267;
(176)(10+120÷24)×5
=(10+5)×5
=15×5
=75;
(177)(238+7560÷90)÷14
=(238+84)÷14
=322÷14
=23;
(178)21×(230﹣192÷4)
=21×(230﹣48)
=21×182
=3822
(179)35×(76﹣59)﹣159,
=35×17﹣159,
=595﹣159,
=436;
(180)1519﹣(14+17)×24,
=1519﹣31×24,
=1519﹣744,
=775;
(181)890﹣608+(79﹣47),
=890﹣606+32,
=284+32,
=316;

(182)(387+525)÷(89﹣65),


=912÷24,
=38
(183)3956﹣(698+1956),
=3956﹣1956﹣698,
=2000﹣698,
=1302;
(184)97+98+103+102,
=(97+103)+(98+102),
=200+200,
=400;
(185)605﹣360÷12,
=605﹣30,
=575;
(186)56+19×23,
=56+437,
=493
(187)950+560÷14×28,
=950+40×28,
=950+1120,
=2070;
(188)(70+80)÷(68﹣18),
=150÷50,
=3;
(189)(216﹣25×8)+198,
=(216﹣200)+198,
=16+198,
=214;
(190)(160×40﹣3800)÷65,
=(6400﹣3800)÷65,
=2600÷65,
=40
(191)329×21÷47,
=6909÷47,
=147;
(192)(789+1143)÷84,
=1932÷84,
=23;
(193)430﹣32×(27﹣18),
=430﹣32×9,
=430﹣288,
=142;
(194)1000﹣962÷(13+24),
=1000﹣962÷37,
=1000﹣26,
=974;
(195)(123+99)×(47﹣28),
=222×19,
=4218;
(196)758﹣408×16÷32,
=758﹣6528÷32,
=758﹣204,
=554
(197)780÷(123﹣97)+492
=780÷26+492
=30+492
=522;
(198)354÷59×(147+353)
=354÷59×500
=6×500
=3000;
(199)(127﹣27×2)÷73
=(127﹣54)÷73
=73÷73
=1;
(200)837÷27+75×40
=31+3000
=3031
(201)462﹣75×4÷25
=462﹣300÷25
=462﹣12
=450;
(202)28×12﹣12×20
=(28﹣20)×12
=8×12
=96;
(203)89﹣(14×3﹣32)
=89﹣(42﹣32)
=89﹣10
=79;
(204)(136﹣72)×12÷16
=64×12÷16
=768÷16
=48;
(205)(178+80)÷(142﹣99)
=258÷43
=6;
(206)(373﹣185)×18÷47
=188×18÷47
=3384÷47
=72
(207)408÷12×150,
=34×150,
=5100;
(208)(537+918÷27)﹣272,
=(537+34)﹣272,
=571﹣272,
=299;
(209)(540÷20+270)÷27,






=(27+270)÷27,
=297÷27,
=11;
(210)136+728÷(748﹣692),
=136+728÷56,
=136+13,
=149
(211)720÷(22﹣12)×2,
=720÷10×2,
=72÷2,
=36;
(212)[558﹣(195+38)]÷25,
=[558﹣233]÷25,
=325÷25,
=13;
(213)360×[480÷(236﹣116)],
=360×[480÷120],
=360×4,
=1440
(214)400﹣400÷50
=400﹣80
=320
(215)38×(480÷16)
=38×30
=1140
(216)130+70×16
=130+1120
=1250
(217)(240+760)÷40
=1000÷40
=25
(218)340﹣240÷20×5,
=340﹣12×5,
=340﹣60,
=280;
(219)182÷[(36﹣23)×7],
=182÷[13×7],
=182÷91,
=2;
(220)12×[(310+410)+18],
=12×[720+18],
=12×738,
=8856;
(221)180×[840÷(140﹣112)],
=180×[840÷28],
=180×30,
=5400
(222)390﹣31×5,
=390﹣155,


=235;
(223)27×12÷54,
=324÷54,
=6;
(224)128+78÷26,
=128+3,
=131
(225)43+378÷14,
=43+27,
=70;
(226)240÷16÷3,
=15÷3,
=5;
(227)108×7÷36,
=756÷36,
=21
(228)(124﹣85)×12÷36
=39×12÷36
=468÷36
=13;
(229)(75+240)÷(20﹣5)
=315÷15
=21;
(230)95+240÷(62﹣47)
=95+240÷15
=95+16
=111;
(231)(321﹣183)×12
=138×12
=1656;
(232)325÷13×(266﹣250)
=325÷13×16
=25×16
=400
(233)420÷(205﹣191)×45
=420÷14×45
=30×45
=1350
(234)406×(29﹣186÷31)
=406×(29﹣6)
=406×23
=9338
(235)385+512÷64,
=385+8,
=393;
(236)736÷32×28,
=23×28,
=644;
(237)650÷(13×5),
=650÷65,
=10;
(238)1000﹣918÷18,
=1000﹣51,
=949
(239)300×3+900÷15
=900+60
=960;
(240)(400+320)÷24
=720÷24
=30;
(241)25×(22+288÷16)
=25×(22+18)
=25×40
=1000
(242)360÷45×72
=8×72
=576;
(243)(600﹣384)×20÷36
=216×20÷36
=4320÷36
=120;
(244)(259+281)÷90
=540÷90
=6;
(245)(1000﹣640)÷72
=360÷72
=5
(246)(210+415)÷25
=625÷25
=25;
(247)96×(325﹣295)
=96×30
=2880;
(248)(28+62)×23
=90×23
=2070
(249)864﹣360÷24
=864﹣15
=849;
(250)27×(36﹣28)
=27×8
=216;
(251)360÷(9×8)
=360÷72
=5
(252)(124﹣85)×12÷26
=39×12÷26
=468÷26


=18;
(253)(59+21)×(96÷8)
=80×12
=960
(254)800﹣600÷12
=800﹣50
=750;
(255)780﹣480÷16
=780﹣30
=750;
(256)99×75
=(100﹣1)×75
=100×75﹣1×75
=7500﹣75
=7425
(257)75×12+280÷35
=900+8
=908;
(258)48×(32﹣17)÷30
=48×15÷30
=720÷30
=24;
(259)(564﹣18×24)÷12
=(564﹣432)÷12
=132÷12
=11;
(260)490÷[210÷(750÷25)]
=490÷[210÷30]
=490÷7
=70
(261)(37﹣15)×(8+14)
=22×22
=484;
(262)(124﹣85)×12÷26
=39×12÷26
=468÷26
=18
(263)736÷32﹣946÷43
=23﹣22
=1;
(264)592÷(71﹣34)×16
=592÷37×16
=16×16
=256;
(265)340﹣240÷20×5
=340﹣12×5
=340﹣60
=280;
(266)(540÷20+28)×15


=(27+28)×15
=55×15
=825
(267)735÷15×7
=49×7
=343;
(268)(704+258)÷37
=962÷37
=26;
(269)900﹣600÷30
=900﹣20
=880;
(270)420÷70×254
=6×254
=1524;
(271)18×(537﹣488)
=18×49
=882;
(272)635﹣(125+68)
=635﹣193
=442
(273)400+612÷12
=400+51
=451;
(274)(338+565﹣201)÷3
=(903﹣201)÷3
=702÷3
=234;
(275)(139﹣114)÷5
=25÷5
=5;
(276)97﹣12×6+43
=97﹣72+43
=25+43
=68;
(277)35×3+64×5
=105+320
=425;
(278)(45﹣9)×(183÷61)
=36×3
=108
(279)230﹣735÷35
=230﹣21
=209;
(280)98+5×38
=98+190
=288;

(281)(45﹣26)×32
=19×32
=608
(282)228+252÷28
=228+9
=237;
(283)95﹣90÷15×5
=95﹣6×5
=95﹣30
=65;
(284)493﹣157﹣43
=493﹣(157+43)
=493﹣200
=293;
(285)101×96
=100×96+1×96
=9600+96
=9696;
(286)(488+32×5)÷12
=(488+160)÷12
=648÷12
=54;
(287)4000÷125÷8
=4000÷(125×8)
=4000÷1000
=4
(288)308﹣(240+360÷60)
=308﹣(240+6)
=308﹣246
=62;
(289)840÷[(205﹣198)×4]
=840÷[7×4]
=840÷28
=30;
(290)21×(718﹣672÷48)
=21×(718﹣14)
=21×704
=14784
(291)125×8÷25
=1000÷25
=40;
(292)240×5﹣320
=1200﹣320
=880;
(293)256÷16×12
=16×12
=192;

(294)490﹣15×25
=490﹣375


=115
(295)1160÷29×28
=40×28
=1120;
(296)2507﹣76×28
=2507﹣2128
=379;
(297)2760÷(92÷4)
=2760÷23
=120;
(298)46×32﹣586
=1472﹣586
=886
(299)97×23﹣350÷14
=2231﹣25
=2206;
(300)(564﹣18×24)÷12
=(564﹣432)÷12
=132÷12
=11;
(301)783+21×15﹣369
=783+315﹣369
=1098﹣369
=729;
(302)[504﹣(318﹣214)]÷25
=[504﹣104]÷25
=400÷25
=16
(303)304÷19+25×26
=16+650
=666;
(304)87﹣221÷13+94
=87﹣17+94
=70+94
=164;
(305)(630﹣2×35)÷70
=(630﹣70)÷70
=560÷70
=8;
(306)(168﹣144)×(32÷4)
=24×8
=192
(307)4357+6503﹣2498,
=10860﹣2498,
=8362;
(308)376×18÷47,
=6768÷47,
=144;
(309)6495﹣2618÷14,


=6495﹣187,
=6308;
(310)12096÷27÷16,
=448÷16,
=28;
(311)600÷(100÷25)×4,
=600÷4×4
=600;
(312)812﹣34×(50﹣32),
=821﹣34×18,
=821﹣612,
=200
(313)200﹣28×5
=200﹣140
=60;
(314)(144﹣72)÷8
=72÷8
=90;
(315)16×(527﹣488)
=16×39
=624;
(316)54+783÷27
=54+29
=83;
(317)205﹣58+42
=147+42
=189;
(318)(312+436)÷34
=748÷34
=22
(319)45×12÷27,
=540÷27,
=20;
(320)162﹣162÷9,
=162﹣18,
=144;
(321)476÷(17+11),
=476÷28,
=17;
(322)(501﹣177)÷36,
=324÷36,
=9
(323)50+60×37,
=50+2220,
=2270;
(324)578﹣(78+98),
=578﹣78﹣98,
=500﹣98,
=402;
(325)(422+28)÷(375﹣345),
=450÷30,
=15;
(326)570÷5÷2,
=570÷(5×2),
=570÷10,
=57
(327)(841﹣41)÷25×4
=800÷25×4
=32×4
=128
(328)560÷[490÷(34+36)]
=560÷[490÷70]
=560÷7
=80
(329)360÷(30+30)×2
=360÷60×2
=6×2
=12
(330)224÷[(2+6)×2]
=224÷[8×2]
=224÷16
=14
(331)198﹣12×9+63,
=198﹣108+63,
=90+63,
=153;
(332)165﹣165÷15,
=165﹣11,
=154;
(333)490﹣(63+63÷9),
=490﹣(63+7),
=490﹣70,
=420;
(334)(227﹣188)×12÷26,
=39×12÷36,
=468÷26,
=18
(335)375+450÷18×25,
=375+25×25,
=375+625,
=1000;
(336)45×101,
=45×(100+1),
=45×100+45×1,
=4500+45,
=4545;
(337)(480+240)÷24﹣12,
=720÷24﹣12,


=30﹣12,
=18;
(338)(480+240)÷(24﹣12),
=720÷12,
=60;
(339)(197+243)÷22×6,
=440÷22×6,
=20×6,
=120;
(340)158+36+42+264,
=(158+42)+(36+264),
=200+300,
=500;
(341)258×12﹣58×12,
=(258﹣58)×12,
=200×12,
=2400;
(342)25×64×125,
=25×8×8×125,
=(25×8)×(8×125),
=200×1000,
=200000
(343)4620+(401﹣438÷73),
=4620+(401﹣6),
=4620+395,
=5015;
(344)52×80﹣720÷9,
=4160﹣80,
=4080;
(345)(124﹣85)×12÷26,
=39×12÷26,
=468÷26,
=18
(346)780÷(223﹣145),
=780÷78,
=10;
(347)47×101﹣47,
=47×(101﹣1),
=47×100,
=4700;
(348)(180﹣140)×7﹣160,
=40×7﹣160,
=280﹣160,
=120;
(349)128+164+72+36,
=(128+72)+(164+36),
=200+200,
=400;
(350)2000÷125÷8,


=2000÷(125×8),
=2000÷1000,
=2;
(351)65×142﹣42×65,
=65×(142﹣42),
=65×100,
=6500
(352)(64﹣224÷14)×12,
=(64﹣16)×12,
=48×12,
=576;
(353)14×(38+405÷27),
=14×(38+15),
=14×53,
=742;
(354)75+360÷(20﹣5),
=75+360÷15,
=75+24,
=99;
(355)(24×15﹣65)÷5,
=(360﹣65)÷5,
=295÷5,
=59
(356)16×8÷16×8
=(16÷16)×(8×8)
=1×64
=64;
(357)480÷32﹣11
=15﹣11
=4;
(358)(618+22)÷20
=640÷20
=32;
(359)376﹣18×19
=376﹣342
=34;
(360)752﹣52+48
=700+48
=748;
(360)375﹣(158﹣81)
=375﹣77
=298
(361)774÷(27+16)
=774÷43
=18

(362)98+5×63
=98+315
=413
(363)54×(71﹣33 )
=54×38
=2052
(364)900÷(90÷2)
=900÷45
=20
(366)26×13﹣198÷18,
=338﹣11,
=327;
(367)128﹣28×3+17,
=128﹣84+17,
=44+17,
=61;
(368)600﹣(697÷41+274),
=600﹣(17+274),
=600﹣291,
=309;
(369)96×15+936÷72
=1440+13
=1453;
(370)560÷(2×7)
=560÷2÷7
=280÷7
=40;
(371)764﹣45×3
=764﹣135
=629
(372)108×15÷4,
=1620÷4,
=405;
(373)574÷(266﹣184),
=574÷82,
=7;
(374)24×(7+15),
=24×22,
=528
(375)105×21+79,
=(100+5)×21+79,
=100×21+5×21+79,
=2100+105+79,
=2100+184,
=2284;
(376)78×12+276÷12,
=936+23,
=959;

(377)586×28﹣486×28,
=(586﹣486)×28,
=100×28,



=2800;
(378)50×12×25,
=50×3×4×25,
=(50×3)×(4×25),
=150×100,
=15000;
(379)563×[272﹣(512﹣339)],
=563×[272﹣173],
=563×99,
=563×(100﹣1),
=563×100﹣563,
=56300﹣563,
=55737;
(380)2000÷(1760﹣30×56),
=2000÷(1760﹣1680),
=2000÷80,
=25
(381)(145+55)÷20
=200÷20
=10;
(382)420÷60×154
=7×154
=1078;
(383)774÷(27+16)
=774÷43
=18;
(384)230﹣735÷35
=230﹣21
=209;
(385)480÷32﹣15
=15﹣15
=0;
(386)244﹣63×3
=244﹣189
=55
(387)456+322+178,
=456+(322+178),
=456+500,
=956;
(388)(780﹣724)×15,
=56×15,
=840;
(389)973﹣245﹣255,
=973﹣(245+255),
=973﹣500,
=473;
(390)1800﹣1800÷15,
=1800﹣120,
=1680

(391)(75+360)÷(20﹣5)
=435÷15
=29;
(392)28×6+84÷7
=168+12
=180;
(393)75+360÷20﹣5
=75+18﹣5
=93﹣5
=88
(394)1500÷(15+35)×14
=1500÷50×14
=30×14
=420
(395)786+500÷(320﹣270)
=786+500÷50
=786+10
=796
(396)320÷(1228﹣12×101)
=320÷(1228﹣1212)
=320÷16
=20
(397)(48+84)×(97﹣77)
=132×20
=2640
(398)218﹣18+25×4,
=218﹣18+100,
=200+100,
=300;
(399)1301+405÷45,
=1301+9,
=1310;
(400)(100+153÷3)×5,
=(100+51)×5,
=151×5,
=755;
(401)21×(75+153)÷38,
=21×(75+153)÷38,
=21×228÷38,
=4788÷38,
=126
(402)336÷[7×(36÷9)],
=336÷[7×4],
=336÷28,
=12;

(403)99×999+999,
=(99+1)×999,
=100×999,
=99900;
(404)48×125,
=(6×8)×125,
=6×(8×125),
=6×1000,
=6000;
(405)20×7×5×3,
=(20×5)×(7×3),
=100×21,
=2100;
(406)600÷30+20×6,
=20+120,
=140;
(407)75×12+280÷35,
=900+8,
=908;
(408)(684﹣18×24)÷12,
=(684﹣432)÷12,
=252÷12,
=21;
(409)490÷[210÷(750÷25)],
=490÷[210÷30],
=490÷7,
=70
(410)586﹣426÷71
=586﹣6,
=580;
(411)650÷13×34
=50×34,
=1700
(412)110+584﹣375÷15,
=110+584﹣25,
=694﹣25,
=669
(413)14×18+520
=252+520
=772;
(414)780÷26+73
=30+73
=103;
(415)546﹣9×34
=546﹣306
=240;
(416)96×(325﹣295)
=96×30
=2880;
(417)(28+62)×23
=90×23
=2070;


(418)900÷(90÷2)
=900÷45
=20
(419)21×(230﹣192÷4)
=21×(230﹣48)
=21×182
=3822;
(420)118+306÷17+265
=118+18+265
=136+265
=401;
(421)540÷45×(65+35)
=540÷45×100
=12×100
=1200;
(422)(119+181)÷(1000﹣975)
=300÷25
=12
(423)354+246÷6,
=354+41,
=395;
(424)572÷4×5,
=143×5,
=715;
(425)54×(40﹣64÷16),
=54×(40﹣4),
=54×36,
=1944
(426)7280﹣280×12,
=7280﹣3360,
=3920;
(427)1650﹣78﹣222+350,
=(1650+350)﹣(78+222),
=2000﹣300,
=1700;
(428)1230÷6+15×13,
=205+195,
=400,;
(429)41×(982+760÷38),
=41×(982+20),
=41×1002,
=41082;
(430)1472÷[﹙2100﹣1364﹚÷
23],
=1472÷[736÷23],
=1472÷32,
=46
(431)26×4﹣125÷5,
=104﹣25,


=79;
(432)(124﹣85)×12÷26,
=39×12÷26,
=468÷26,
=18;
(433)280+(280﹣280÷70),
=280+(280﹣4),
=280+276,
=556;
(434)(75+240)÷(20﹣5),
=315÷15,
=21
(435)540÷(442﹣32×11),
=540÷(442﹣352),
=540÷90,
=6;
(436)250﹣250÷50,
=250﹣5,
=245;
(437)125×88,
=125×8×11,
=1000×11,
=11000;
(438)653﹣219﹣81﹣53,
=653﹣53﹣(219+81),
=600﹣300,
=300;
(439)99×45+45,
=(99+1)×45,
=100×45,
=4500;
(440)325÷13×(276﹣250),
=25×26,
=25×2×13,
=50×13,
=650
(441)774÷(17+26)
=774÷43
=18;
(442)320﹣770÷11
=320﹣70
=250;
(443)490÷70×154
=7×154
=1078;
(444)305﹣89+164
=216+164
=380;
(445)451﹣(164﹣88)
=451﹣76
=375;
(446)(93+111)÷34
=204÷34
=6
(447)344﹣6×28,
=344﹣168,
=176;
(448)(227﹣57)÷34,
=170÷34,
=5;
(449)78+240÷4,
=78+60,
=138
(450)315﹣135÷9,
=315﹣15,
=300;
(451)105﹣13×6+57,
=105﹣78+57,
=27+57,
=84;
(452)(45+240)÷(20﹣5),
=285÷15,
=19
(453)197﹣12×9+61,
=197﹣108+61,
=89+61,
=150;
(454)38+160÷(40﹣30),
=38+160÷10,
=38+16,
=54;
(455)(224﹣185)×12÷26,
=39×12÷26,
=468÷26,
=18;
(456)(25+40)×4,
=25×4+40×4,
=100+160,
=260;
(457)135﹣135÷15,
=135﹣9,
=126;
(458)(55+250)÷(30﹣25),
=305÷5,
=61
(459)125×25×32,
=125×25×(8×4),
=(125×8)×(25×4),





=1000×100,
=100000;
(460)2300﹣165﹣35,
=2300﹣(165+35),
=2300﹣200,
=2100;
(461)25×204,
=25×(200+4),
=25×200+25×4,
=5000+100,
=5100;
(462)125×(8+4),
=125×8+125×4,
=1000+500,
=1500;
(463)3200÷25÷4,
=3200÷(25×4),
=3200÷100,
=32;
(464)56×32﹣46×32,
=(56﹣46)×32,
=10×32,
=320;
(465)432÷54+17×54,
=8+918,
=926;
(466)99×78+78,
=(99+1)×78,
=100×78,
=7800
(467)35×(320﹣170)÷50
=35×(150÷50)
=35×3
=105;
(468)25×33×4
=25×4×33
=100×33
=3300;
(469)(36×54﹣984)÷24
=(1944﹣984)÷24
=960÷24
=40;
(470)150÷[90÷(67﹣52)]
=150÷[90÷15]
=150÷6
=25;
(471)61×99
=61×(100﹣1)
=61×100﹣61


=6100﹣61
=6039;
(472)13×56+56×87
=(13+87)×56
=100×56
=5600
(473)261﹣(210+165)÷15
=261﹣375÷15
=261﹣25
=236;
(474)12×15+567÷21
=180+27
=207;
(475)102+150÷25+5
=102+6+5
=108+5
=113;
(476)966÷(27+19)×45
=966÷46×45
=21×45
=945;
(477)64+992÷(426﹣394)
=64+992÷32
=64+31
=95;
(478)35×(800﹣600÷25)
=35×(800﹣24)
=35×776
=27160
(479)(76+38×30)÷76
=(76+1140)÷76
=1216÷76
=16;
(480)14×[752﹣(152+28)]
=14×[752﹣180]
=14×572
=32032;
(481)360×[1000÷(408+92)]
=360×[1000÷500]
=360×2
=720;
(482)600×[(135﹣45)÷90]
=600×[90÷90]
=600;
(483)9846﹣87×(360÷60)
=9846﹣87×6
=9846﹣522
=9324;
(484)508×345÷(1526﹣1521)
=508×345÷5
=175260÷5
=35052
(485)24×25+876÷73
=600﹣12
=588;
(486)956﹣946÷43﹣406
=956﹣22﹣406
=956﹣406﹣22
=550﹣22
=528
(487)9×4×15
=9×(4×15)
=9×60
=540;
(488)176﹣(76+38)
=176﹣76﹣38
=100﹣38
=62;
(489)18+(159+82)
=18+82+159
=100+159
=259;
(490)31+992÷32
=31+31
=62;
(491)900÷25÷4
=900÷(25×4)
=900÷100
=9;
(492)160﹣60÷2
=160﹣30
=130
(493)8507﹣(153﹣48)+5369,
=8507﹣105+5369,
=8402+5369,
=13771;
(494)645﹣45×(50﹣38),
=645﹣45×12,
=645﹣540,
=105;
(495)(32+360÷45)×72,
=(32+8)×72,
=40×72,
=2880;
(496)412÷(607﹣36×14),
=412÷(607﹣504),
=412÷103,
=4;



(497)[591﹣(134+48)]×26,
=[591﹣182]×26,
=409×26,
=10634;
(498)963÷[732﹣(496+227)],
=963÷[732﹣723],
=963÷0,
=0


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