(610)整数简便运算专项练习600题(有答案)ok 下载本文

=87×(99+1), =87×100, =8700;

(455)125×88, =125×(8×11), =125×8×11, =1000×11, =11000;

(456)54×102, =54×(100+2), =54×100+54×2, =5400+108, =5508;

(457)125×(4+8), =125×4+125×8, =500+1000, =1500;

(458)36×111+888×8, =36×111+111×64, =111×(36+64), =111×100, =11100;

(459)65×34+34×34+34,=34×(65+34+1), =34×100, =3400;

(460)25×13×4, =25×4×13, =100×13, =1300.

(461)567+142+558, =567+(142+558), =567+700, =1267;

(462)546﹣378﹣162, =546﹣(378+162), =546﹣540, =6;

(463)1458+999, =1458+1000﹣1, =2458﹣1, =2457;

(464)796+643﹣596, =796﹣596+643, =200+643, =843;

(465)475﹣303, =475﹣300﹣3, =175﹣3,

=172;

(466)265+318+35, =265+35+318, =300+318, =618.

(467)25×387×4, =(25×4)×387, =100×387, =38700;

(468)264+(37+136)+163, =264+37+136+163,

=(264+136)+(37+163), =400+200, =600;

(469)76×102, =76×(100+2), =76×100+76×2, =7600+152, =7752;

(470)56×38+38+43×38, =(56+43+1)×38, =100×38, =3800.

(471)2358+998, =2358+1000﹣2, =3358﹣2, =3356;

(472)5927﹣(458+627), =5927﹣627﹣458, =5300﹣458, =4842;

(473)3752﹣698, =3752﹣700+2, =3052+2, =3054;

(474)2000﹣586﹣114 =2000﹣(586+114), =2000﹣700, =1300;

(475)67×101﹣67 =(101﹣1)×67, =100×67, =6700;

(476)125×48 =125×8×6, =1000×6, =6000;

(477)34×126+37×73+37 =4284+2701+37,

整数简便运算---

33

=7022;

(478)85+137+63+215, =(85+215)+(137+63), =300+200, =500;

(479)885﹣(301﹣115), =885﹣301+115, =(885+115)﹣301, =1000﹣301, =699;

(480)40×(25+125), =40×25+40×125, =1000+5000, =6000;

(481)99×123, =(100﹣1)×123, =100×123﹣1×123, =12300﹣123, =12177;

(482)64×125, =8×8×125, =8×(8×125), =8×1000, =8000;

(483)79999+7999+799+79, =(80000﹣1)+(8000﹣1)+(800﹣1)+(80﹣1),

=(80000+8000+800+80)﹣(1+1+1+1), =88880﹣4, =88876;

(484)630÷45, =630÷(9×5), =630÷9÷5, =70÷5, =14;

(485)168×68+33×168﹣168, =168×(68+33﹣1), =168×100, =16800;

(486)126×72, =(125+1)×72, =125×72+1×72, =125×8×9+1×72, =1000×9+72, =9000+72, =9072.

(487)875+659+125 =875+125+659,

=1000+659, =1659;

(488)813﹣256﹣344 =813﹣(256+344), =813﹣600, =213;

(489)77+649﹣649 =649﹣649+77, =0+77, =77;

(490)99×7+7 =(99+1)×7, =100×7, =700.

(491)459×802+197×459+459,=459×802+197×459+459×1, =459×(802+197+1), =459×1000, =459000.

(492)125×(8×2)+100, =125×8×2+100, =1000×2+100, =2000+100, =2100;

(493)230×24+240×77, =23×240+240×77, =240×(23+77), =240×100, =24000;

(494)46×101﹣146, =46×(100+1)﹣146, =4600+46﹣146, =4600﹣(146﹣46), =4600﹣100, =4500; (495)(841﹣41)÷25×4, =800÷25×4, =8×100÷25×4, =8×(100÷25)×4, =8×4×4, =32×4, =128.

(496)135+39+55+61, =(135+55)+(39+61), =190+100, =290;

(497)45×201, =45×(200+1), =45×200+45×1,

=9000+45, =9045;

(498)2000÷25÷8, =2000÷(25×8), =2000÷200, =10;

(499)17×43﹣43×7, =(17﹣7)×43, =10×43, =430;

(500)278﹣122﹣78, =278﹣(122+78), =278﹣200, =78.

(501)2000÷125÷8, =2000÷(125×8), =2000÷1000, =2;

(502)800﹣138﹣162, =800﹣(138+162), =800﹣300, =500;

(503)99×38+38, =(99+1)×38, =100×38, =3800;

(504)25×33×4, =25×4×33, =100×33, =3300; (505)(125+70)×8, =125×8+70×8, =1000+560, =1560;

(506)101×87, =(100+1)×87, =100×87+1×87, =8700+87, =8787;

(507)312×4+188×4, =(312+188)×4, =500×4, =2000; (508)28×225﹣2×225﹣6×225,=(28﹣2﹣6)×225, =20×225, =4500.

(509)389+327+211 =389+211+327,

整数简便运算---

34

=600+327,

=927;

(510)608﹣154﹣146 =608﹣(154+146), =608﹣300, =308;

(511)587﹣98 =587﹣(100﹣2), =587﹣100+2, =487+2, =489;

(512)125×53×80, =125×80×53, =1000×53, =53000;

(513)150+(140×8﹣252), =150+(1120﹣252), =150+868, =1018;

(514)178×78﹣78×78, =78×(178﹣78), =78×100, =7800;

(515)771﹣169+229﹣431, =(771+229)﹣(169+431), =1000﹣600, =400.

(516)25×19×4, =25×4×19, =100×19, =1900; (517)(25×125)×(8×40),=(25×40)×(125×8), =1000×1000, =1000000;

(518)125×8×8, =1000×8, =8000;

(519)35×39+65×39, =(35+65)×39, =100×39, =3900;

(520)45×(200+2), =45×200+45×2, =9000+90, =9090.

(521)125×32, =125×(8×4), =(125×8)×4,

=1000×4, =4000;

(522)195×115﹣195×15, =195×(115﹣15), =195×100, =19500;

(523)25+75﹣25+75, =(25﹣25)+(75+75), =0+150, =150;

(524)99×38+38, =(99+1)×38, =100×38, =3800;

(525)3200÷4÷25, =3200÷(4×25), =3200÷100, =32;

(526)273﹣73﹣27, =273﹣(73+27), =273﹣100, =173.

(527)538﹣(461+38), =538﹣499, =39;

(528)125×48, =125×(8×6), =(125×8)×6, =1000×6, =6000;

(529)1300÷25÷4, =1300÷(25×4), =1300÷100, =13;

(530)237﹣125+163﹣175, =(237+163)﹣(125+175), =400﹣300, =100;

(531)156×l0l﹣156, =156×(l0l﹣1), =156×100, =15600;

(532)78×103, =78×(100+3), =78×100+78×3, =7800+234, =8034;

(533)25×36×11, =25×4×9×11,

=(25×4)×(9×11), =100×99, =9900;

(534)14×37+63×14, =14×(37+63), =14×100, =1400; (535)(25+125 )×8, =25×8+125×8, =200+1000, =1200;

(536)5×4×20×25, =4×25×5×20,

=(4×25)×(5×20), =100×100, =10000;

(537)168﹣52﹣48, =168﹣(52+48), =168﹣100, =68;

(538)1300÷25÷4, =1300÷(25×4), =1300÷100, =13;

(539)37+125+63+175, =(37+63)+(125+175), =100+300, =400;

(540)28×37+73×37﹣37, =37×(28+73﹣1), =37×100, =3700; (541)(300﹣1456÷26)×32,=(300﹣56)×32, =244×32, =7808;

(542)8×(29×l25), =(8×125)×29, =1000×29, =29000;

(543)99×l0l, =99×(100+1), =99×100+99×1, =9900+99, =9999.

(544)27×48+27×52, =27×(48+52), =27×100, =2700;

整数简便运算---

35

(545)125×25×4×8,

=(125×8)×(25×4), =1000×100, =100000;

(546)125×(296×80), =125×80×296, =10000×296, =2960000;

(547)33×33+99×89, =99×3+99×89, =99×(3+89), =99×92,

=(100﹣1)×92, =100×92﹣1×92, =9200﹣92, =9108;

(548)560÷7÷8, =560÷(7×8), =560÷56, =10;

(549)88×201﹣88, =88×(201﹣1), =88×200, =17600

(550)36×7÷36×7, =36÷36×7×7, =1×7×7, =49;

(551)1300÷25÷4, =1300÷(25×4), =1300÷100, =13;

(552)32×(25×l25), =32×25×125, =8×4×25×125, =4×25×(8×125), =100×1000, =100000;

(553)32+155+68+145, =(32+68)+(155+145), =100+300, =400;

(554)201×16, =(200+1)×16, =200×16+16, =3200+16, =3216.

(555)125×103﹣125×3,=125×(103﹣3),

=125×100, =12500;

(556)2700﹣425﹣175, =2700﹣(425+175), =2700﹣600, =2100;

(557)125×44, =(125×4)×11, =500×11, =5500;

(558)41+127+59+173, =(41+59)+(127+173), =100+300,. =400;.

(559)2300÷25÷4, =2300÷(25×4), =2300÷100, =23;

(560)156×l0l﹣156, =156×(l0l﹣1), =156×100, =15600;

(561)49×99+49, =49×(99+1), =49×100, =4900.

(562)5787﹣329﹣1071,=5787﹣(329+1071), =5787﹣1400, =4387;

(563)52×11+11×18, =(52+18)×11, =70×11, =770;

(564)912+88﹣512, =912-512+88, =488

(565)376+28+172+124, =(376+124)+(28+172),=500+200, =700;

(566)43000÷8÷125, =43000÷(8×125), =43000÷1000, =43;

(567)99×38+38, =38×(99+1), =38×100, =3800;

(568)25×104, =25×(100+4), =25×100+25×4, =2500+100, =2600;

(569)8×(29×l25), =8×125×29, =1000×29, =29000;

(570)688-534+112-166, =(688+112)-(534+166), =800-700, =100;

(571)156×l0l-156, =156×(101-1), =156×100, =15600;

(572)164-83-17, =164-(83+17), =164-100, =64;

(573)26×148-48×26, =26×(148-48), =26×100, =2600.

(573)600÷25÷4, =600÷(25×4), =600÷100, =6;

(574)83×29+71×83, =83×(29+71), =83×100, =8300;

(575)199+199×99, =199×(99+1), =199×100, =19900;

(576)560÷(56÷9), =560÷56×9 =10×9, =90;

(577)101×99, =(100+1)×99, =100×99+1×99, =9900+99, =9999;

(578)28×37+73×37-37, =(28+73-1)×37,

整数简便运算--- 36

=100×37, =3700.

(579)7820-375-625, =7820-(375+625), =7820-1000, =6820;

(580)25×33×4, =25×4×33, =100×33, =3300;

(581)329+753+571+47, =(329+571)+(47+753), =900+800, =1700;

(582)75+47×3, =75+141, =216;

(583)2500÷4÷25, =2500÷(4×25), =2500÷100, =25; (584)(16+24)×35÷70,=40×35÷70, =1400÷70, =20;

(585)875+209+191-75, =(875-75)+(209+191), =800+400, =1200;

(586)57×43+33×43, =(57+33)×43, =90×43, =3870.

(587)25×103-125×3, =25×(100+3)-125×3, =25×100+25×3-125×3, =2500+75-375, =2575-375, =2200.

(588)2700-425-175, =2700-(425+175), =2700-600, =2100;

(589)1200÷25÷4, =1200÷(25×4), =1200÷100, =12;

(590)41+127+59+173, =(41+59)+(127+173),

=100+300, =400;

(591)156×83+156×17, =156×(83+17), =156×100, =15600;

(592)25×73×4, =25×4×73, =100×73, =7300.

(593)745-179-21, =745-(179+21), =745-200, =545;

(594)125×66×8, =(125×8)×66, =1000×66, =66000;

(595)7200÷45÷2, =7200÷(45×2), =7200÷90, =80;

(596)1600-704-275-225-296,=1600-(704+296)-(275+225),=1600-1000-500, =600-500, =100;

(597)27+979+1973+9021, =(27+1973)+(979+9021), =2000+10000, =12000;

(598)3291+599-898, =3291+600-1-900+2, =3291+600-900-1+2, =3891-900-1+2, =2991-1+2, =2990+2, =2992;

(599)833-243-457, =833-(243+457), =833-700, =133;

(600)199×47+47, =(199+1)×47, =200×47, =9400.

整数简便运算--- 37