(610)整数简便运算专项练习600题(有答案)ok 下载本文

(173)105×32, =(100+5)×32, =100×32+5×32, =3200+160, =3360;

(174)4×43×25, =4×25×43, =100×43, =4300

(175)109+127+73, =109+(127+73), =109+200, =309;

(176)608﹣154﹣146, =608﹣(154+146), =608﹣300, =308;

(177)165﹣97, =165﹣(100﹣3), =165﹣100+3, =65+3, =68;

(178)258+98, =258+(100﹣2), =258+100﹣2, =358﹣2, =356.

(179)109+127+73, =109+(127+73), =109+200, =309;

(180)608﹣154﹣146, =608﹣(154+146), =608﹣300, =308;

(181)165﹣97, =165﹣(100﹣3), =165﹣100+3, =65+3, =68;

(182)258+98, =258+(100﹣2), =258+100﹣2, =358﹣2, =356.

(183)36×64﹣64+64×65,=(36﹣1+65)×64, =100×64, =6400,;

(184)24×125×7,

=3×8×125×7,

=(3×7)×(8×125), =21×1000, =21000;

(185)25×(24+8)×125, =25×32×125, =25×4×8×125,

=(25×4)×(8×125), =100×1000, =100000;

(186)438﹣298, =438﹣300+2, =138+2, =140;

(187)25×37×8, =25×8×37, =200×37, =7400;

(188)4800÷16÷5, =4800÷(16×5), =4800÷80, =60;

(189)816﹣285﹣15, =816﹣(285+15), =816﹣300, =516

(190)37×101﹣37, =37×(100﹣1), =37×100, =3700;

(191)2563﹣79+437, =(2563+437)﹣79, =3000﹣79, =2921.

(192)768﹣273﹣27 =768﹣(273+27), =768﹣300, =468;

(193)165+247+135 =165+135+247, =300+247, =547;

(194)198+355 =200+355﹣2, =555﹣2, =553;

(195)243﹣(43+26) =243﹣43﹣36,

整数简便运算---

25

=200﹣36,

=164.

(196)45+63+37+55, =(45+55)+(63+37), =100+100, =200;

(197)520﹣425﹣75, =520﹣(425+75), =520﹣500, =20;

(198)8×(11×125), =11×(8×125), =11×1000, =11000;

(199)525×99+525, =525×(99+1), =525×100, =52500;

(200)3900÷25÷4, =3900÷(25×4), =3900÷100, =39;

(201)275+364+636+725, =(275+725)+(364+636), =1000+1000, =2000;

(202)1578﹣(61+578)﹣139,=1578﹣61﹣578﹣139, =(1578﹣578)﹣(61+139), =1000﹣200, =800

(203)9999×2010+2010 =(9999+1)×2010, =10000×2010, =20100000;

(204)456+123+544+877 =(456+544)+(123+877), =1000+1000, =2000;

(205)225×48+775×48 =225×48+775×48, =(225+775)×48, =1000×48, =48000

(206)25×33×4×2, =(25×4)×(33×2), =100×66, =6600;

(207)156+62﹣156+62,

=(156﹣156)+(62+62), =0+124, =124;

(208)700﹣296﹣104, =700﹣(296+104), =700﹣400, =300;

(209)45+99×99+54, =45+99×(100﹣1)+54, =45+99×100﹣99×1+54, =45+9900﹣99+54, =(45+54﹣99)+9900, =0+9900, =9900;

(210)8×4×(125+25), =(8×125×4)+(4×25×8),=1000×4+100×8, =4000+800, =4800.

(211)25×(4×40), =25×4×40, =100×40, =4000;

(212)47×16+63×16, =(47+63)×16, =110×16, =1760;

(213)201×42﹣42, =(201﹣1)×42, =200×42, =8400;

(214)6854﹣(893+854+107),=6854﹣854﹣(893+107), =6000﹣1000, =5000;

(215)28×19×25, =4×7×19×25,

=(4×25)×(7×19), =100×133, =13300;

(216)327×99, =327×(100﹣1), =327×100﹣327×1, =32700﹣327, =32373;

(217)54000÷8÷125, =54000÷(8×125), =54000÷1000, =54;

(218)194+59+41+106, =(194+106)+(59+41), =300+100, =400;

(219)383﹣(183+29), =383﹣183﹣29, =200﹣29, =171;

(220)24×125, =3×8×125, =3×(8×125), =3×1000, =3000;

(221)156+45﹣55, =155+1+45﹣55,

=(155﹣55)+(45+1), =100+46, =146

(222)1300÷25÷4, =1300÷(25×4), =1300÷100, =13;

(223)5127﹣866﹣134, =5127﹣(866+134), =5127﹣1000, =4127;

(224)75+127+25+63, =(75+25)+(127+63), =100+190, =290

(225)363×7+237×7, =(363+237)×7, =600×7, =4200;

(226)4300÷25÷4, =4300÷(25×4), =4300÷100, =43;

(227)25×7×44, =25×7×4×11,

=(25×4)×(7×11), =100×77, =7700;

(228)327+64+273+46, =(327+273)+(64+46), =600+110, =710;

(229)750﹣326﹣144, =750﹣(326+144),

整数简便运算---

26

=750﹣470,

=280;

(230)278+598+122, =278+122+598, =400+598, =998;

(231)647﹣289﹣111, =647﹣(289+111), =647﹣400, =247;

(232)287+198, =287+(200﹣2), =287+200﹣2, =487﹣2, =485

(233)357+256+1000, =613+1000, =1613;

(234)49×102﹣2×49, =49×(102﹣2), =49×100, =4900;

(235)1563+254+437+746, =(1563+437)+(254+746),=2000+1000, =3000;

(236)25×64×125, =25×4×2×8×125,

=(25×4)×(8×125)×2,=100×1000×2, =100000×2, =200000;

(237)43000÷(43×5), =43000÷43÷5, =1000÷5, =200;

(238)1736÷28+1064÷28,=(1736+1064)÷28, =2800÷28, =100

(239)168×25×4, =168×(25×4), =168×100, =16800;

(240)32×87+13×32, =(87+13)×32, =100×32, =3200;

(241)1126﹣637﹣463,

=1126﹣(637+463), =1126﹣1100, =26; (241)(101﹣98)×44÷12, =3×44÷12, =132÷12, =11

(242)43×99+43 =(99+1)×43, =100×43, =4300;

(243)1270﹣538﹣462 =1270﹣(538+462), =1270﹣1000, =270;

(244)577+492+423+508 =(577+423)+(492+508), =1000+1000, =2000;

(245)48×125 =6×(8×125), =6×1000, =6000

(246)32000÷125 =32×1000÷125, =32×(1000÷125), =32×8, =256;

(247)107+538+462 =107+(538+462), =107+1000, =1107;

(248)54×45+45+45×45 =(54+1+45)×45, =100×45, =4500;

(249)125×(25×32 ) =125×25×8×4,

=(125×8)×(25×4), =1000×100, =100000;

(250) 153×43﹢43×47, =(153+47)×43, =200×43, =8600;

(251)101×16, =(100+1)×16, =100×16+16, =1600+16,

=1616;

(252)125×5×8×2, =125×8×(5×2), =1000×10, =10000;

(253)39+144+61, =39+61+144, =100+144, =244;

(254)27×4×5, =27×(4×5), =27×20, =540;

(255)857﹣318﹣182, =857﹣(318+182), =857﹣500, =357.

(256)25×77﹣37×25,=25×(77﹣37), =25×40, =1000;

(257)125×7×32, =125×7×8×4,

=(125×8)×(7×4), =1000×28, =28000;

(258)124+38+76+62, =(124+76)+(38+62), =200+100, =300;

(259)222﹣56﹣44, =222﹣(56+44), =222﹣100, =122;

(260)16×125, =2×(8×125), =2×1000, =2000.

(261)534+262+66+138,=(534+66)+(262+138),=600+400, =1000;

(262)99×165+165, =(99+1)×165, =100×165, =16500;

(263)29×8×125, =29×(8×125), =29×1000,

整数简便运算---

27

=29000;

(264)8×(125+12), =8×125+8×12, =1000+96, =1096;

(265)1428﹣544﹣456, =1428﹣(544+456), =1428﹣1000, =428.

(266)250×60,

=(250×4)×(60÷4), =1000×15, =15000;

(267)630÷35÷2, =630÷(35×2), =630÷70, =9;

(268)125×16, =125×8×2, =1000×2, =2000;

(269)800÷32,

=(800÷8)÷(32÷8), =100÷4, =25;

(270)25×36, =25×4×9, =100×9, =900;

(271)810÷54,

=(810÷9)÷(54÷9), =90÷6, =15;

(272)55×14, =55×2×7, =110×7, =770.

(273)179+54+321, =179+321+54, =500+54, =554;

(274)13×14×125×2, =(13×14)×(125×2),=182×250, =45500;

(275)1525﹣31+75﹣49,=(1525+75)﹣(31+49),=1600﹣80, =1520;

(276)115×23﹣23×15, =(115﹣15)×23, =100×23, =2300;

(277)23×199+23, =23×(199+1), =23×200, =4600;

(278)72×5+72×4+72, =72×(5+4+1), =72×10, =720;

(279)34×72+34×28, =34×(72+28), =34×100, =3400;

(280)203×99, =203×(100﹣1), =203×100﹣203×1, =20300﹣203, =20097; (281)(80+4)×25, =80×25+4×25, =2000+100, =2100

(282)125×7×8, =125×8×7, =1000×7, =7000;

(283)27×45+55×27, =27×(45+55), =27×100, =2700;

(284)728﹣155﹣328, =728﹣328﹣155, =400﹣155, =245;

(285)463+342+158, =463+(342+158), =463+500, =963;

(286)873﹣322+278, =551+278, =829;

(287)1234﹣773﹣327, =1234﹣(773+327), =1234﹣1100, =134;

(288)111×9+111,

=111×(9+1), =111×10, =1110

(289)25×294×4, =(25×4)×294, =100×294, =29400;

(290)4000÷125÷8, =4000÷(125×8), =4000÷1000, =4;

(291)18×45+18×55, =(45+55)×18, =100×18, =1800;

(292)239+144+61 =239+61+144, =300+144, =444.

(293)728﹣155﹣328, =728﹣328﹣155, =400﹣155, =245;

(294)463+342+158, =463+(342+158), =463+500, =963;

(295)873﹣322+278, =551+278, =829;

(296)1234﹣773﹣327,=1234﹣(773+327), =1234﹣1100, =134;

(297)111×9+111, =111×(9+1), =111×10, =1110.

(298)24×125, =3×8×125, =3×(8×125), =3×1000, =3000;

(299)114+48+86+52, =(114+86)+(48+52), =200+100, =300;

(300)469×5×2, =469×(5×2),

整数简便运算---

28

=469×10,

=4690;

(301)720÷15÷4, =720÷(15×4), =720÷60, =12.

(302)3288﹣1999+212, =3288﹣2000+1+212, =1288+1+212, =(1288+212)+1, =1500+1, =1501;

(303)769×101﹣769, =769×(101﹣1), =769×100, =76900,;

(304)39000÷60÷50, =39000÷(60×50), =39000÷3000, =13;

(305)96×125×7×24, =96×7×3×125×8, =96×7×3×(125×8), =672×3×1000, =2016×1000, =2016000.

(306)1795+376+624﹣595, =(1795﹣595)+(376+624),=1200+1000, =2200;

(307)102×79﹣79×2, =(102﹣2)×79, =100×79, =7900;

(308)25×404, =25×(4×101), =(25×4)×101, =100×101, =10100.

(309)628﹣46+454, =582+454, =1036; (310)(80﹣1)×125, =80×125﹣1×125, =10000﹣125, =9875; (311)(49+49+49+49)×250,=(49×4)×250, =49×(4×25),