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1、四年级计算题道 Document serial number【NL89WT-NY98YT-NC8CB-NNUUT-NUT108】3 3 6 2 5 1 1 2 5 2 3 3 5 2 4 1 2 5 6 5 3 6 1 2 5 1 1 6 5 8 2 5 6 8 133125125343362521534205323120637481912143256833621245313120621126302121352432541123212111417184312085121461135241583326416109332042511830215302542102111924325296612518
2、030720303603092040780604322462523837438501778026960405441789828420307802069030750508406052040920238402470444480326722175458897396242657618173173.771.85.220.3990.024.670.952.441.6666.15.66.54.882.95.614.38.92.45.5559.770.021.3845.18.78832.661590.24.2681.7575.79.462.8517.86.41.54.91173691650.1627059.3
3、13320.82-43.1915.361270.253067.50.567.329.141602.484025.20.04136152153632565523155715836215351262351232119321163322433215125633526165242563130612260153034665224325401674833625125457802069030750508406052040920238402470444480326722175458897396242657618173173.771.85.220.39.990.0228403563031961191980288
4、283612.361.235.681.22537.20.75.61.137.84.52.5166.082.287.21.254.54.43.2512157.52567.31244.1219.36642.52.50.991.113.634.736.11.95689307465434721015989.429429689346188837252.03733.861.72.632.8420.3955676.0.742344661348320257210+28654447643214835034930328643669417598126609879100240507039793626450252894
5、4320007003.22.460.6724.21042.41.713.88.45.60.134506.7902.72313.1315.242529117253842340.276233624460.049.95+2.470.0450.315.30412613551086831272101389824031268920332312253362185839918278883764532437281173691650.1627059.313320.82-43.1915.361270.253067.50.567.329.141602.484025.20.04136152153632565523155
6、71583621529429840605204092023840247044448032672217545889739624265761817317135451082554312472101385412689203323122543728824032082436137406234602330556624784658935356452404798533621858399182788837645324324696623731799802882836689346188837245328423955676574.加法交换结合律:4825175578143225712889723572881431292
7、35171165378527731672893358394261534125366125753201533816216332137268158395105822197788.商不变的规律:30025400012524056002532005040025150258002520001259000125100025200080600890060混合运算:672672127987(345298)65210520(240227)34024020530(320170)90458(8528)23630840(240212)408512(178283)864(2723)12(10512635)2524014
8、0533602602051044827216356552024018030245030203146(3442070)624(2714)4(77217)691(165655)5840(120195)15557(18626)23375(2510)15(65934)+(28040)1527-2008(324-285)1226(1604812)4336(3629)662(3001455)35(320170)50(3654984)2415090(6752)18236(126)640(96-80)457125603584864016122800100789(947599)766436(91327623)(
9、932521)95071363498723(521504)253841223371(3921)(3966)156(17.7-7.2)337.85-(7.85+6.4)3028(5+969.9318)81(72-54)9960(15003245)192(5438)67138254(13125)(38)(12+24+80)5070425253212532(25+125)1781011788436+64847599+2758310283298199123181233+8512350(344)325(24+16)17899+1787942+79+7957730025481004757527+19253
10、1870+133104(2565+2528)1027658984428084024585(95144024)8870(105202)80400(430087015)1437272756381432(135278)125(331)37.4(8.67.246.6)156107-772937.85-(7.85+6.4)2875+969903181554(72-58)3360(126)5288(2614)85006-(502-80)(10512635)25864(2723)12(453816)24500(240386)64(8742)15(845153)1612(4928)7450(8448)12(5
11、8+37)(64-95)178-14556+42812-700(9+3111)85+14(14+20826)(284+16)(512-820818)120-36418+35(58+37)(64-95)(6.8-6.80.55)8.50.124.80.124.8(3.21.5+2.5)1.65.8(3.87-0.13)+4.23.7432.52-(6+9.7283.2)2.5(7.1-5.6)0.9-1.152.55.42.6(3.7-2.9)+0.62126(12-7.2)-61267.2-60.681.9+0.321.9(58+370)(64-45)420+580-642128(136+64
12、)(65-34523)388+(5000-1000)158+262+138375+219+38150012471021(181+2564)+2719378+44+114276+228+3537755(2187+755)2214+638+28638254(13125)(38)(12+24+80)5070425253212532(25+125)88125102765898781011788436+64847599+27583102832123181233+8512350(344)325(24+16)17899+1787942+79+795773002548100475168001203010021
13、0032000400497007007527+19254800252356(1356721)1235(17801665)31870+133104(2565+2528)(181+2564)+2719122575241382548812510276347+452-416052(58+37)(64-95)95(64-45)178-14556+42812-700(9+3111)85+14(14+20826)120-36418+35(58+37)(64-95)(6.8-6.80.55)8.50.124.80.124.8(3.21.5+2.5)1.65.8(3.87-0.13)+4.23.7432.52-
14、(6+9.7283.2)2.5(7.1-5.6)0.9-1.152.55.42.6(3.7-2.9)+0.62126(12-7.2)-61267.2-60.681.9+0.321.9420+580-642128136+6(65-34523)15-10.750.4-5.718.1(30.2990.23)110.15-10.750.4-5.799683=58018=414040=420534851715551(155-258419)7000-3401525(6409+2317)68386-(2525+2005)153365+183651-2978(2995+5285)15132101-(2260+
15、3200)421141+7565448872289+8580655488-364263904000-(2580+288016)(2495+353)(500-484)3640-62525157560(125-113)+278635.85(1.75+9.825)14.635.651.89+9.1424.58+14.615.487240080142108(8336060)(42048)(375345)420(205198)4460(29183)14502(169)49070154774(17+26)47283321524900245635320-770113=960321511451-(164-88
16、)33825075805414025050815850070408003401757525=683513=725(125237)=(114166)35=432(98)=1896040=口算题:38019=40100=202020=75-755=40+36090=1548=7720100-136=66060=7030=341720=60050=350+80=2540=2830=45045=3006=523=42021=460280145+8=45-27=12+1212=0169=136-70=280+70=8102745059=6012=850=100020=76040=10046=122562
17、3065+56+18+8498+1242159559609=5090=60030=2034=432=11600=13600=75-18=70-30=8000-3000=1203=3900=9003=3203=2104=25100=25484431.413100120685584.31000=2.50.0545201002.8898757512578591=10(2.3+2.7)7997=0.5+1.5=12062=4(3625)=0.750.3=0.5+0.5=0.5-0.5=3008416=0.691.1=30018=779=240301.30.8=63090=60.37=0100+100=
18、600=2.730.27=54027040050=9933=1850=470+70=144=75050=140070=6120=48040=620-30=217-65-35=30-305126+8=546=8447=3695=用简便方法计算下面各题:491022491257888.332.434.5799376.7-2.633.3-3.3741000(415)3.572+6.52858248(8578)8402870186.450.581.423.276.42.734.612000125825441253225(160+880)2099451023612(324285)26996464715+
19、265+335+2851253254620172536=100-137-263+300754253434666=74(16726)=37-56+73-44=45108=248302=67125=55227855=20346=20346-346=9978=499999=98101=981019=4999+49=4545264573=3836368=874(2423506)=6(159)=255(15530)=2599=25(696456)16=48(3959433)=(40+4)25=1253225=576203=43574357=245245=245245=289104=9610196=486(18659)41=863297=216305=2532=4723664=402359=4378122257=25(264)=2544=354(22946)=