三年级数学(上)计算题专项练习附答案集锦

三年级数学(上)计算题专项练习附答案集锦524+612=142-32=532-(738-407)=783-(160+480)=2/7+3/7=13×7+378=396-293=380×8=478-(388-273)=367+95-207=315+(333-51)=75+(791-128)=106-30×2=335+113=358×8-342=889-881+460=828-(953-732)=927-431-347=696-(287+374)=989-(938-564)=398-72×4=214×2-128=262+238+198=20+66=92+398-28=246-236+77=348-48×6=774-395-148=16×4=23+396+159=194×3+886=449+(175-75)=254+717+790=213+101×6=2/9+3/9=328+770=1/6+4/6=292×9=53+220=931×(552-548)=143×3-275=783-169×3=463-(208+175)=102-(32+35)=46×(60-56)=141-(137-25)=166×(184-180)=698-(595+12)=106×4=250+223=528+(703-578)=887×5-390=575+98+107=964-446-369=209-(427-229)=356-200-116=143+217-25=733-115×4=335+119×2=752×3-612=140-81+392=55+189=30+402×2=693+714-29=491-460=148×(421-416)=801+91+38=869×(398-391)=240×(357-354)=271×3-188=211-55-46=141×(274-269)=71×4=424-94×4=405×9=77+76-13=277+727-90=986+142+82=303-(361-183)=406-(183+43)=3/6-2/6=901-(837-759)=729-65×4=244×5-698=397-92=446+228=438+33×5=68+472×2=642×(260-254)=301+39-270=57-16+83=870-29×6=152+227-378=241+236+326=218+(480-353)=569+328-165=136×6=825+166×6=181-52×2=548×8-485=66×7+504=299×6-588=2/5-1/5=406-79×5=221+76=999-28×6=940-231+521=946+210×3=453+(288-237)=584+(208-62)=378-(194+110)=3/5+2/5=186+144-288=787-260=688+(282-91)=890+230×4=458-163-268=78+(396-335)=177-104+367=941+291×2=896-(206+321)=345×(751-744)=536×(59-54)=434+212+933=282+147-229=135-(381-329)=199+(365-201)=139+(865-104)=712×9-752=913-(354+269)=82×5=224+70=417-(123+277)=579-36+386=541×(506-498)=116-(367-263)=84×(261-256)=873-(124+479)=40+30×9=652-(814-477)=638-37×9=597×2-12=410-108×3=706-83×4=198-(130+49)=142-139+119=283-112+120=127×(306-302)=538-410+375=212×(248-245)=314×2=690+(183-161)=809-(184+132)=478-(234+101)=449-(265-19)=304-(259-196)=73-63+229=205+848+143=479-33-117=339-49×4=737+(199-143)=210×4-330=888-446-254=211+(301-27)=6/9+2/9=244+(374-40)=247×4-846=415-103=237+195=286-(108+30)=442-254-94=471-456=329-57-32=567-102×5=44+26+220=281-169=184+108-75=224+49-30=923×(167-162)=856-34×6=682-37-288=658-356+944=669-125-235=112-(846-736)=373+369-408=374-96=120×(415-408)=582+(715-362)=248+110-169=370-(303-44)=39+123=653+(894-276)=282-78-13=986+328-850=432-376+45=371+539+967=79+217×2=42+473+319=665+987+662=126+186+270=353+(978-268)=447+(287-215)=425×(541-538)=900-(158+676)=430+98+712=355+754-222=28+145=45×8+17=751+(546-243)=794+119-651=703-133×2=714-168-212=38+241×2=286+116=451-240=824×6-642=373+(311-32)=497+912-222=336+87-74=496+885=119+235=288-102=936-522=721+919+986=319×3-877=854×5=88+325-71=486-80×5=325+44+103=813-77×4=499-139-355=995×8=133-34×2=478-65-80=114×8-883=417-(228+73)=27+912-170=387+205=521-105×3=748-102=633×3-181=379-352+384=332+90-274=595-354=70+310=648×(643-636)=313+121=78×4+384=13×9=295×(373-370)=532+148+200=167-(292-258)=408-33×2=162×(229-225)=183+106=791×4=978-501=171-108-51=185-(288-260)=435+43+171=424-45×5=5/9+3/9=126+193=387-(359-314)=172+381×2=242+230-340=996-98×5=618-160=102×6=399+88+600=169×9-643=322+84-124=146-19+309=489-(724-602)=297-38=859×8=453-(131+122)=35×4+210=383+21×7=86+368=362-(167+101)=621+671+969=441-(156+212)=858+32×6=852+59×3=309-174=472×2=46×9=901-(493+190)=276+394=220-154+333=246×2=702+269×3=15×(136-128)=632-(524-390)=904-(712+101)=380×6-257=743+741+266=2/7+5/7=506×(901-898)=2/6+3/6=420×6=693-80×2=2/6-1/6=49+141+661=196-(174-56)=60×7+373=164+(75-11)=174×2-328=882-231-390=340-317=143×(418-414)=775×5-815=253-117+702=141×(114-107)=331×8=240-(466-420)=57×5+372=161×3+410=450-326=427×5-362=913×4=256-123+227=926-(118+76)=938-196-447=312-(358-77)=444-(260+24)=582×2=667-270=961+(105-38)=190+64+746=125×8-653=366-68-128=201+(969-501)=496-112+47=297+44-199=877-483=668-(72+388)=552-140-226=477+(223-10)=754+142+30=143-12×5=587×3=4/7-2/7=445-92=463+235-77=557×7-558=616-374+957=906-49×9=770-573+706=806+(647-274)=758+694=144+145=954-(328+309)=260+(920-431)=133+348=472-30+52=406+(457-314)=923-(81+343)=931+167×3=30+231+282=377-(207+124)=924-432-318=434×2-95=49×(423-418)=405-110+856=449-375+36=13×2=928-345+817=747-(184+474)=620-620+897=134×5+414=463-267=348-135=109-89+176=824-(732-545)=338-(290-253)=437-145=784-756+556=261+40+126=262-54×2=110×(252-247)=375×2-293=181+108=664-398+109=216-22×5=556-(901-632)=23+(917-506)=385-174=642-(105+40)=890×(353-346)=625+146=119×3=144×5=91+70=413-368=476+438×2=180×5=74×7=259+137=129-(147-97)=459-361+100=225+182+394=275-(686-573)=413-184×2=223+266-433=361-236-119=670-543+311=266-(244-63)=879-416+169=587×5=5/8+2/8=101+121-56=364-302+356=78+98×6=457-132-218=229×(386-381)=987-(583-521)=332+201=472-361-102=45×9=267-46×4=361+81-284=638-53×3=897-12-544=485-19-397=509×3=737-361+858=341-50+205=758+522+859=498+(568-99)=947-594-231=590-215×2=845-20×9=522+283-308=443-(399-92)=488-377=970-238=319-123+118=688×(134-125)=360-148-95=825-(856-104)=592-167+927=438-254+477=717+753-794=49+32=165×(226-221)=238-71=402-37×6=5/8-1/8=905-201+909=437+281+124=123×6=391-(466-318)=480-322=476-229-172=245+273×2=135+104=647×7-200=165×(326-321)=1/8+2/8=549×(125-119)=70×8=404×(872-866)=427-135=319+237×2=745-(340+186)=631-(203+329)=111×9+962=188+547+152=381+365=273+(309-20)=83×3+772=406+97+355=261-(34+223)=282-84+248=135×(492-486)=222×3=339+(457-428)=495×5-509=948-252-210=482×9-687=411-399=813-563+632=357+(190-163)=96×9+77=334-(24+25)=88+(610-97)=508-(763-699)=209×2-183=915+946-697=200×2-296=476-139-139=344+110×4=827-(455+67)=479+(770-23)=982-(61+119)=609+543=350-263+290=202×(312-308)=279-18-191=796+652-886=124×6=905-(264+357)=541×2=87×7=232+(232-186)=500-326-132=855+142×7=151+(187-50)=849-730+399=194-58=949-177=37+45=512-(425-353)=978-132-402=435-(472-434)=487-322=202×4-502=462-32-90=960×2=688-(254+74)=208+750-66=196×5-248=108×3+240=30×6=246-11×7=291-(401-388)=194-34=302+560+809=447-66×4=449-124-170=315-154=354+534-827=206-(146-73)=218-48×3=486×2-905=192+401=101+269=462-59×3=264-84=180+84=385+307=350-217-51=61×(166-163)=345-101=410+(305-202)=118+337=491-(323+89)=578+943+189=5/9-4/9=35×7+471=513+130+219=905-437×2=381+(564-558)=149-41×3=424+58-291=279-67+247=507+804-281=196-19=771×3=106×8-84=232-160=285-(86+95)=97-48×2=332-(143+173)=684-(798-316)=293×2+346=784-147×4=655+622-409=180+279=187+(302-257)=397-111=948+(931-482)=226-124=475×2-723=957-716-100=284×6-934=187×4=103+193+414=69+501+219=449-313+304=271-74×3=407-363+446=881-(712-588)=413+564+577=884×(109-105)=724-266+676=566×7=441-63-224=220×4+888=245×(443-440)=749+727+542=361-307+430=189×(657-652)=409×2-294=308×9=296×(190-182)=988-461-74=820-238×2=125×(444-439)=456-93×4=878-108×5=787-(751-589)=540+297=114+70-131=677×5-608=123×3=3/6-1/6=701+120=585-(377+154)=879×9=320+149-308=367+73=381+685+98=402+559+29=476-11-180=36+12+875=74+790-641=973+88-386=232+54+151=405-(327-196)=639+92+194=872-(604+176)=44+(428-365)=484-421=483-38+477=358×2-619=32×8+302=939-304-370=426-36×9=776×9-489=938-802=191+82×4=400+(391-165)=709+242=363-123-10=149×(168-164)=275+118=314+(735-473)=564+912-152=53×(93-88)=520+123+863=180-(27+128)=612-33×2=495+18+386=236+179=48×8+399=962-292+910=298+91=948-11×6=278+(495-464)=490-203=443-219×2=180-24+115=121×5-131=96+107×6=114+320=123+(667-285)=3/7-2/7=12+285+415=181×3+279=633×(272-264)=241-(346-270)=67×3=250×2=104+220=460-226+212=948-534=876-(832-417)=361+117-267=316+943+147=1/8+3/8=499-22=83×8+129=10+(451-134)=455-(86+224)=159+44=23×3=156-91=49×4=345+125-58=356+42×2=499×(432-428)=557-12×2=158×2-271=884+(686-382)=327×3-873=530+285=386+(84-64)=413+780=403-13-114=166×2=111-57+163=475-(41+277)=517-34-158=994-93-721=134+332-415=335×2-334=150×4+372=358+81-283=47×3=190×(490-482)=461-(21+132)=393-(235+103)=483-28=150+260+16=191+220+547=1/3+2/3=692-448+863=417-(414-320)=73+(398-213)=62+331+598=501-313+243=314-121-142=199×3=589-413-121=301-159-122=3/4-1/4=697×7-290=53×5+313=80×7+396=471-14×9=460-(238-31)=169+(324-202)=770-(845-211)=570-256+979=667-78-324=730×(801-794)=303-(153+145)=33×5+255=483×(907-900)=593+208=128-(280-220)=648×3-824=401+518-157=584-73-150=954-(291+78)=326+968-414=476×3=436-21×2=447-45×6=224+426+35=263×(343-340)=592-(915-855)=405-(801-668)=104+157-119=278×3-322=897-(544+248)=353×4-578=378-(41+155)=173×5+307=399-(486-442)=636+139-484=207+358-62=98×(493-486)=285+204+270=57+18×4=306×(874-868)=465×3-803=878+848-74=472-(232-206)=239+367+57=388+230+483=233-(82+99)=276×2=108×2+632=49×7+499=392×2-51=702+(587-451)=690-526-46=37+(921-335)=90+74=397-(11+230)=455-(478-237)=446-331=95+329-420=749+48+195=199+186+163=248+20×7=454-(66+43)=522-507=110×6=560+128=694-203-194=908-342=178×(795-792)=282+(495-221)=323+98-410=488-257+233=502×2-114=114+111-225=582-120=59×(295-286)=722+309-494=261+(156-147)=292×(429-426)=84+(853-551)=895-424=445-282-71=18-(64-54)=66×6-138=71-(312-279)=98×(30-22)=277+19-190=370+50×6=681-558=505-(750-610)=21+(299-76)=506×2-429=349×8=472-20×6=881×8-658=878-(594+151)=156×(224-220)=357+(326-81)=854-(825-439)=110×7-166=381-13×4=85×8-140=956-763-92=297×9=314-(230+62)=359+229=173×5=162+957=808-538+149=309×3-631=273+(54-47)=177×(275-271)=791-67-40=121-(567-535)=37×(128-122)=101+126=12+869+71=468-(252-39)=332-43×2=620+233-551=405+(172-31)=553-(122+137)=2/4-1/4=313×(40-37)=395-18-109=37×6+933=468-54-144=2/3-1/3=183-169=59×9=317+217+146=634-466+522=478-333+45=188-67×2=847+815+328=125×6-164=3/7-1/7=68×8-503=302×2+191=108×(35-31)=763-68-288=905×5=324-(170+60)=474-(143+126)=495-(283-163)=494-48=参考答案524+612=1136142-32=110532-(738-407)=201783-(160+480)=1432/7+3/7=5/713×7+378=469396-293=103380×8=3040478-(388-273)=363367+95-207=255315+(333-51)=59775+(791-128)=738106-30×2=46335+113=448358×8-342=2522889-881+460=468828-(953-732)=607927-431-347=149696-(287+374)=35989-(938-564)=615398-72×4=110214×2-128=300262+238+198=69820+66=8692+398-28=462246-236+77=87348-48×6=60774-395-148=23116×4=6423+396+159=578194×3+886=1468449+(175-75)=549254+717+790=1761213+101×6=8192/9+3/9=5/9328+770=10981/6+4/6=5/6292×9=262853+220=273931×(552-548)=3724143×3-275=154783-169×3=276463-(208+175)=80102-(32+35)=3546×(60-56)=184141-(137-25)=29166×(184-180)=664698-(595+12)=91106×4=424250+223=473528+(703-578)=653887×5-390=4045575+98+107=780964-446-369=149209-(427-229)=11356-200-116=40143+217-25=335733-115×4=273335+119×2=573752×3-612=1644140-81+392=45155+189=24430+402×2=834693+714-29=1378491-460=31148×(421-416)=740801+91+38=930869×(398-391)=6083240×(357-354)=720271×3-188=625211-55-46=110141×(274-269)=70571×4=284424-94×4=48405×9=364577+76-13=140277+727-90=914986+142+82=1210303-(361-183)=125406-(183+43)=1803/6-2/6=1/6901-(837-759)=823729-65×4=469244×5-698=522397-92=305446+228=674438+33×5=60368+472×2=1012642×(260-254)=3852301+39-270=7057-16+83=124870-29×6=696152+227-378=1241+236+326=803218+(480-353)=345569+328-165=732136×6=816825+166×6=1821181-52×2=77548×8-485=389966×7+504=966299×6-588=12062/5-1/5=1/5406-79×5=11221+76=297999-28×6=831940-231+521=1230946+210×3=1576453+(288-237)=504584+(208-62)=730378-(194+110)=743/5+2/5=1186+144-288=42787-260=527688+(282-91)=879890+230×4=1810458-163-268=2778+(396-335)=139177-104+367=440941+291×2=1523896-(206+321)=369345×(751-744)=2415536×(59-54)=2680434+212+933=1579282+147-229=200135-(381-329)=83199+(365-201)=363139+(865-104)=900712×9-752=5656913-(354+269)=29082×5=410224+70=294417-(123+277)=17579-36+386=929541×(506-498)=4328116-(367-263)=1284×(261-256)=420873-(124+479)=27040+30×9=310652-(814-477)=315638-37×9=305597×2-12=1182410-108×3=86706-83×4=374198-(130+49)=19142-139+119=122283-112+120=291127×(306-302)=508538-410+375=503212×(248-245)=636314×2=628690+(183-161)=712809-(184+132)=493478-(234+101)=143449-(265-19)=203304-(259-196)=24173-63+229=239205+848+143=1196479-33-117=329339-49×4=143737+(199-143)=793210×4-330=510888-446-254=188211+(301-27)=4856/9+2/9=8/9244+(374-40)=578247×4-846=142415-103=312237+195=432286-(108+30)=148442-254-94=94471-456=15329-57-32=240567-102×5=5744+26+220=290281-169=112184+108-75=217224+49-30=243923×(167-162)=4615856-34×6=652682-37-288=357658-356+944=1246669-125-235=309112-(846-736)=2373+369-408=334374-96=278120×(415-408)=840582+(715-362)=935248+110-169=189370-(303-44)=11139+123=162653+(894-276)=1271282-78-13=191986+328-850=464432-376+45=101371+539+967=187779+217×2=51342+473+319=834665+987+662=2314126+186+270=582353+(978-268)=1063447+(287-215)=519425×(541-538)=1275900-(158+676)=66430+98+712=1240355+754-222=88728+145=17345×8+17=377751+(546-243)=1054794+119-651=262703-133×2=437714-168-212=33438+241×2=520286+116=402451-240=211824×6-642=4302373+(311-32)=652497+912-222=1187336+87-74=349496+885=1381119+235=354288-102=186936-522=414721+919+986=2626319×3-877=80854×5=427088+325-71=342486-80×5=86325+44+103=472813-77×4=505499-139-355=5995×8=7960133-34×2=65478-65-80=333114×8-883=29417-(228+73)=11627+912-170=769387+205=592521-105×3=206748-102=646633×3-181=1718379-352+384=411332+90-274=148595-354=24170+310=380648×(643-636)=4536313+121=43478×4+384=69613×9=117295×(373-370)=885532+148+200=880167-(292-258)=133408-33×2=342162×(229-225)=648183+106=289791×4=3164978-501=477171-108-51=12185-(288-260)=157435+43+171=649424-45×5=1995/9+3/9=8/9126+193=319387-(359-314)=342172+381×2=934242+230-340=132996-98×5=506618-160=458102×6=612399+88+600=1087169×9-643=878322+84-124=282146-19+309=436489-(724-602)=367297-38=259859×8=6872453-(131+122)=20035×4+210=350383+21×7=53086+368=454362-(167+101)=94621+671+969=2261441-(156+212)=73858+32×6=1050852+59×3=1029309-174=135472×2=94446×9=414901-(493+190)=218276+394=670220-154+333=399246×2=492702+269×3=150915×(136-128)=120632-(524-390)=498904-(712+101)=91380×6-257=2023743+741+266=17502/7+5/7=1506×(901-898)=15182/6+3/6=5/6420×6=2520693-80×2=5332/6-1/6=1/649+141+661=851196-(174-56)=7860×7+373=793164+(75-11)=228174×2-328=20882-231-390=261340-317=23143×(418-414)=572775×5-815=3060253-117+702=838141×(114-107)=987331×8=2648240-(466-420)=19457×5+372=657161×3+410=893450-326=124427×5-362=1773913×4=3652256-123+227=360926-(118+76)=732938-196-447=295312-(358-77)=31444-(260+24)=160582×2=1164667-270=397961+(105-38)=1028190+64+746=1000125×8-653=347366-68-128=170201+(969-501)=669496-112+47=431297+44-199=142877-483=394668-(72+388)=208552-140-226=186477+(223-10)=690754+142+30=926143-12×5=83587×3=17614/7-2/7=2/7445-92=353463+235-77=621557×7-558=3341616-374+957=1199906-49×9=465770-573+706=903806+(647-274)=1179758+694=1452144+145=289954-(328+309)=317260+(920-431)=749133+348=481472-30+52=494406+(457-314)=549923-(81+343)=499931+167×3=143230+231+282=543377-(207+124)=46924-432-318=174434×2-95=77349×(423-418)=245405-110+856=1151449-375+36=11013×2=26928-345+817=1400747-(184+474)=89620-620+897=897134×5+414=1084463-267=196348-135=213109-89+176=196824-(732-545)=637338-(290-253)=301437-145=292784-756+556=584261+40+126=427262-54×2=154110×(252-247)=550375×2-293=457181+108=289664-398+109=375216-22×5=106556-(901-632)=28723+(917-506)=434385-174=211642-(105+40)=497890×(353-346)=6230625+146=771119×3=357144×5=72091+70=161413-368=45476+438×2=1352180×5=90074×7=518259+137=396129-(147-97)=79459-361+100=198225+182+394=801275-(686-573)=162413-184×2=45223+266-433=56361-236-119=6670-543+311=438266-(244-63)=85879-416+169=632587×5=29355/8+2/8=7/8101+121-56=166364-302+356=41878+98×6=666457-132-218=107229×(386-381)=1145987-(583-521)=925332+201=533472-361-102=945×9=405267-46×4=83361+81-284=158638-53×3=479897-12-544=341485-19-397=69509×3=1527737-361+858=1234341-50+205=496758+522+859=2139498+(568-99)=967947-594-231=122590-215×2=160845-20×9=665522+283-308=497443-(399-92)=136488-377=111970-238=732319-123+118=314688×(134-125)=6192360-148-95=117825-(856-104)=73592-167+927=1352438-254+477=661717+753-794=67649+32=81165×(226-221)=825238-71=167402-37×6=1805/8-1/8=4/8905-201+909=1613437+281+124=842123×6=738391-(466-318)=243480-322=158476-229-172=75245+273×2=791135+104=239647×7-200=4329165×(326-321)=8251/8+2/8=3/8549×(125-119)=329470×8=560404×(872-866)=2424427-135=292319+237×2=793745-(340+186)=219631-(203+329)=99111×9+962=1961188+547+152=887381+365=746273+(309-20)=56283×3+772=1021406+97+355=858261-(34+223)=4282-84+248=446135×(492-486)=810222×3=666339+(457-428)=368495×5-509=1966948-252-210=486482×9-687=3651411-399=12813-563+632=882357+(190-163)=38496×9+77=941334-(24+25)=28588+(610-97)=601508-(763-699)=444209×2-183=235915+946-697=1164200×2-296=104476-139-139=198344+110×4=784827-(455+67)=305479+(770-23)=1226982-(61+119)=802609+543=1152350-263+290=377202×(312-308)=808279-18-191=70796+652-886=562124×6=744905-(264+357)=284541×2=108287×7=609232+(232-186)=278500-326-132=42855+142×7=1849151+(187-50)=288849-730+399=518194-58=136949-177=77237+45=82512-(425-353)=440978-132-402=444435-(472-434)=397487-322=165202×4-502=306462-32-90=340960×2=1920688-(254+74)=360208+750-66=892196×5-248=732108×3+240=56430×6=180246-11×7=169291-(401-388)=278194-34=160302+560+809=1671447-66×4=183449-124-170=155315-154=161354+534-827=61206-(146-73)=133218-48×3=74486×2-905=67192+401=593101+269=370462-59×3=285264-84=180180+84=264385+307=692350-217-51=8261×(166-163)=183345-101=244410+(305-202)=513118+337=455491-(323+89)=79578+943+189=17105/9-4/9=1/935×7+471=716513+130+219=862905-437×2=31381+(564-558)=387149-41×3=26424+58-291=191279-67+247=459507+804-281=1030196-19=177771×3=2313106×8-84=764232-160=72285-(86+95)=10497-48×2=1332-(143+173)=16684-(798-316)=202293×2+346=932784-147×4=196655+622-409=868180+279=459187+(302-257)=232397-111=286948+(931-482)=1397226-124=102475×2-723=227957-716-100=141284×6-934=770187×4=748103+193+414=71069+501+219=789449-313+304=440271-74×3=49407-363+446=490881-(712-588)=757413+564+577=1554884×(109-105)=3536724-266+676=1134566×7=3962441-63-224=154220×4+888=1768245×(443-440)=735749+727+542=2018361-307+430=484189×(657-652)=945409×2-294=524308×9=2772296×(190-182)=2368988-461-74=453820-238×2=344125×(444-439)=625456-93×4=84878-108×5=338787-(751-589)=625540+297=837114+70-131=53677×5-608=2777123×3=3693/6-1/6=2/6701+120=821585-(377+154)=54879×9=7911320+149-308=161367+73=440381+685+98=1164402+559+29=990476-11-180=28536+12+875=92374+790-641=223973+88-386=675232+54+151=437405-(327-196)=274639+92+194=925872-(604+176)=9244+(428-365)=107484-421=63483-38+477=922358×2-619=9732×8+302=558939-304-370=265426-36×9=102776×9-489=6495938-802=136191+82×4=519400+(391-165)=626709+242=951363-123-10=230149×(168-164)=596275+118=393314+(735-473)=576564+912-152=132453×(93-88)=265520+123+863=1506180-(27+128)=25612-33×2=546495+18+386=899236+179=41548×8+399=783962-292+910=1580298+91=389948-11×6=882278+(495-464)=309490-203=287443-219×2=5180-24+115=271121×5-131=47496+107×6=738114+320=434123+(667-285)=5053/7-2/7=1/712+285+415=712181×3+279=822633×(272-264)=5064241-(346-270)=16567×3=201250×2=500104+220=324460-226+212=446948-534=414876-(832-417)=461361+117-267=211316+943+147=14061/8+3/8=4/8499-22=47783×8+129=79310+(451-134)=327455-(86+224)=145159+44=20323×3=69156-91=6549×4=196345+125-58=412356+42×2=440499×(432-428)=1996557-12×2=533158×2-271=45884+(686-382)=1188327×3-873=108530+285=815386+(84-64)=406413+780=1193403-13-114=276166×2=332111-57+163=217475-(41+277)=157517-34-158=325994-93-721=180134+332-415=51335×2-334=336150×4+372=972358+81-283=15647×3=141190×(490-482)=1520461-(21+132)=308393-(235+103)=55483-28=455150+260+16=426191+220+547=9581/3+2/3=1692-448+863=1107417-(414-320)=32373+(398-213)=25862+331+5