四年级计算题答案实用.pdf
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1、人教版四年级下册数学简便计算题四年级下册数学简便计算题第一类:加65+73+135357+288+143272+68+28129+235+171+16517+145+23+35999+99+9+36+7+8+102+103+104第二类:减400-256-44258-42-16344-(144+37)第三类:乘45458(12513)9998+3+99+998+3+9517-53-47284-159-41545-167-145478-47-178236-(177+36)23 522594(250125)(48)881251人教版721251256425421258525488125第四类:乘(
2、12+50)40125(40-4)7610318125254442259999978第五类:乘4537+37552821+28791723-2373846+64389932+3246+46591672+1673+1675398+639-39428225-2225-6225(42+25)125+(18+15)1252324+2542+2718+2581 9922+33342人教版第六类:除36049250526001258005848054824051242035240025780012第七类:加减92+99197+102354-108405-99127-98323+189-123248+86-
3、48672-36+64(6467-832)+(1832-1467)1530+(592-530)-192(2+4+6+98+100)-(1+3+5+97+99)第八类:乘除9604648990001211137023812343人教版640(164)1000(1254)第九类:加减乘除(98+147)49(230-23)23(250-25)25173628+106428125(860+24012)700+612124(37+15)85+1360200520062006-200620052005421258525488125(12+50)40125(40-4)8610318125254442259
4、9999784538+38552821+28793723-2373846+64389932+3246+46591672+1673+16754人教版398+639-39428225-2225-6225(42+25)125+(18+15)12565+73+135357+288+143272+68+28400-256-44545-167-145236-(177+36)259488125129+235+171+16517+145+23+35517-53-47284-159-41258-42-16478-47-178344-(144+37)454523 528(12513)(250125)(48)721
5、2512564255人教版421258525488125(12+50)40125(40-4)76103181252544422599999784537+37552821+28791723-2373846+64389932+3246+46591672+1673+1675398+639-39436049250526001258005848054824051242035117+392+608882727126人教版8753874777572523466345285347435(135189)1672532252538993810875257412588420352882727126419964147
6、1479935201212586254830255706.3 1.85285347725(48)7598253212535004252824115912564+12536158395105人教版480025(13856)(456)2.1 99 2.10.18 4.26 0.18 4.26810047516800120124824315015(10000-1000-100-10)101382936210799+999+9999+9999966.868.661.3488118910 0.432 2.5689819925 6.8 0.04355+260+140+245102992125645-180
7、-245125322546101569926382101-382460508930 0.6 510224784228人教版63.4 2.5 0.4235718331735767236643664366450025734143755-287+8718143784228999893999+49888225225126982919568(68178)38216535821552564598759-126-259216+89+117599+275105015772002430219 9958 10176 1027846+7854169123231691291011295651+5648+5612525
8、3224259人教版514+189214732254332562541252474+2624228+(72+189)109+(291176)(375+1034)+(966+125)参考答案第一类:加65+73+135=65+135+73=273129+235+171+165=129+171+(235+165)=700(2130+783+270)+1017357+288+143272+68+28=357+143+288=272+28+68=788=36817+145+23+35999+99+9+3=17+23+(145+35)=999+1+(99+1)+(9+1)=220=111010人教版6+
9、7+8+102+103+1049998+3+99+998+3+9=102+8+(7+103)+(6+104)=9998+2+(99+1)+(998+1)+(9+1)=330=11110第二类:减400-256-44517-53-47284-159-41=400-(256+44)=517-(53+47)=284-(156+41)=100=417=84258-42-16545-167-145478-47-178=258-(42+16)=545-145-167=478-178-47=200=233=233344-(144+37)236-(177+36)=244-144-37=236-36-177=6
10、3=23第三类:乘454523 522594=45(45)=23(52)=2549=90=230=9008(12513)(250125)(48)88125=812513=1258(2504)=812511=13000=1000000=110007212512564254212585=81259=1258(258)=425(1258)=9000=200000=21000025488125=100(8125)11=1100000第四类:乘(12+50)40125(40-4)76103=1240+5040=12540-1254=76(100+3)11人教版=880=5400=76100+763=78
11、281812525444225999=(10+8)125=25411=22521=10125+8125=2250=110=10509978=(100-1)78=10078-178=7722第五类:乘4537+37552821+28791723-237=37+(45+55)=28(21+79)=23(17-7)=3700=2800=2303846+64389932+3246+4659=38(46+64)=32(99+1)=46(59+1)=38110=3200=2760=38(100+10)=38100+3810=41801672+1673+1675398+639-394=167(2+3+5)=
12、39(8+6-4)=1670=39028225-2225-6225(42+25)125+(18+15)125=225(28-2-6)=125(42+18+25+15)=4500=125002324+2542+2718+25819922+3334=8(23+25+27)=33(66+34)=600=3300第六类:除3604925052600125=360(49)=250(52)=600(125)=10=25=1012人教版80058480548240512=80085=480485=240125=20=2=442035240025780012=42075=240055=780062=12=96
13、=650第七类:加减92+99197+102354-108=92+(100-1)=197+(100+2)=354-(100+8)=92+100-1=197+100+2=354-100-8=191=299=246405-99127-98323+189-123=405-(100-1)=127-(100-2)=323-123+189=405-100+1=127-100+2=389=306=29248+86-48672-36+64(6467-832)+(1832-1467)=248-48+86=672-(36+64)=6467-1467+(1832-832)=286=572=60001530+(592
14、-530)-192(2+4+6+98+100)-(1+3+5+97+99)=1530-530+(592-192)=(2-1)+(4-3)+(98-97)+(100-99)=1400=1+1+.+1+1=50第八类:乘除960464899000121113702381234=9604846=99000(12111)=12343381234=920=9000=114640(164)1000(1254)=640164=10001254=160=32第九类:加减乘除13人教版(98+147)49(230-23)23(250-25)25=9849+14749=23023-2323=25025-2525=
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