三年級(jí)數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦

三年級(jí)數(shù)學(xué)(上)計(jì)算題專項(xiàng)練習(xí)附答案集錦340+142-224=191×9-60=113×6+262=97×(261-254)=43+419+708=889-(156+284)=405+110=327+355+749=193-92×2=693-(433+165)=196-89+52=399+221×2=53+859-842=646+817=431-226=495-(168-60)=632×6=620×6=463-448=546+395+10=363+16-77=120×2+464=296-(189-137)=292-(475-194)=393+815-443=238+255-302=70-(442-407)=437-(362+70)=577-508=929-241+944=480-321=594-(125+101)=991-617-273=112×5+723=234-150=330-(361-145)=665-44×8=792+588+414=971-709+877=318-281+804=27×3+31=920+698-11=950-893+73=673+845+392=59+373-310=149×6=431-216=886-83×2=199+584+155=931×5=425-(280+110)=184-(213-189)=314-284+238=545-(697-169)=471-60×3=372-(140+107)=306+62-287=320+488+160=70×6+140=394-(376-280)=222-64-113=716×9-92=292-106-75=305+934+307=698-(802-733)=474-65×4=285×(621-613)=4/8-2/8=683-67-273=768+(239-99)=384-26-344=54+254=163×4-512=287×3=54×(433-429)=6/8-1/8=388-12×7=708-87×8=915-(88+723)=268-116-28=813+166-408=58+127=310+681+799=591-321-75=248+620+846=390-(173-74)=713-49×8=636-(39+193)=107+720-301=31×7=294+(864-50)=866+98+214=237-149=128-66=732+998=494-191-54=51+(386-236)=635+125-231=495+225+278=202×(393-389)=153×4+492=355×2-478=210×4-36=898-50×8=236+(386-170)=974+64×5=138×5+293=193+282-154=731×6=322-276=893-(498+386)=580+143+264=373-(63+230)=478-(121+352)=907-97×3=908-(224+656)=111×5+587=124-100=444+19-168=524+401+570=34×(405-398)=628+747+75=167-141+186=868×(876-871)=302×3-388=276-13×8=254-63+220=241+634+42=133×4-254=45+14+592=629+200×2=316+714-586=348-(694-353)=756×6-373=595-(712-155)=313-65-131=578×5-761=539+826-422=145×5-232=267-48-55=66×6+819=444+212+36=479-(154+240)=345-68×2=729+70×7=470-44×9=462-358+185=3/4-1/4=935×9=86+195=471+(336-258)=128+244+168=355-246=258+234×2=203-(113-74)=705-(43+554)=1/7+4/7=883-(534+287)=799+79×9=119×7+197=95×6-490=289+190-406=875-261-588=45+181×4=284-35=278×6=904-735=734+929+469=527+428-452=333-154+181=928+457=79×(19-13)=865-356+31=318-130-80=605+937=357×6=959-(879-370)=850×4-911=305×2-313=417-135-139=107×3=777-(817-207)=193-138+386=783-(110+61)=11+473-320=829×(812-807)=839-(260+171)=218+56×3=232-130=637×(878-870)=879+320-139=288-(48+59)=458-81×5=436-346+45=246+497=104+220-55=49×9=134+350=397×3-68=898-690+833=457×(792-789)=378+(432-290)=517×5=486-(286+150)=82+(811-225)=798-(316+71)=737+137×5=480×2+451=44+259=430×2-767=262+114-183=495×6=490+522-138=612-11×9=799-65+901=413-199=259-245+448=744+76×5=361-93-87=185+245=23+120=974-126×4=84+171=292-64×2=709-627+723=458-189+583=456-251-199=500-(353-277)=541-(412+23)=514+85×9=156×7-944=103×4=464-34-148=965-468-437=721×(618-615)=308-(288-20)=323-28×5=823-152-138=4/8-3/8=493-(358+99)=517+111+344=3/7-1/7=450×2-853=310×2-223=446-88=264-61×4=5/8+2/8=234×(860-851)=842+(757-678)=252-(127-98)=14×9=639+525+433=638-(568-551)=160-(245-176)=688×(548-539)=822-(272+332)=347-235+17=821-50-455=5/9+4/9=265+(234-102)=496+(880-212)=375-49×4=434-(362-22)=121+246-186=991-(57-13)=450+(273-204)=452+66+162=713-52×6=710-608+434=528+86-367=722×(279-272)=83×8+692=363-88×2=284×(647-644)=371×(272-264)=245+175=415-36×5=908-300=504×5=694+581-89=802+346=490×2-664=18+305-220=318-150+111=697-64=93+212=341-(469-384)=887-124×3=198+232=391×7=430+245=262+731-106=430-(377-86)=936+15+15=682-180+67=845×(291-286)=72×2=147×(419-416)=417×3-809=609-325=746+45×6=247×3+86=434-44×7=738+83×8=333-(380-146)=210-13+137=838-127-415=2/10+3/10=745-95×5=55+200=169×7-841=460-(110-90)=239-(377-201)=313×2+276=324-176+160=348-(16+107)=354+249+73=145-43×2=429-69×5=245+(859-415)=15×5=344-98=780-71=292×2=148×5-45=407+(386-19)=342-204-115=207-16+138=23×6=73×(75-72)=229×9-196=465×2+13=1/8+2/8=901-(187+261)=496-385+24=415-41=134+191=353+641-33=71+319+90=153+749=529-(739-487)=783+956+485=713-(790-436)=500-(189+135)=404-(161-128)=86+241×3=37×8+503=92+229+333=249-71×2=477-(287+27)=79×2+183=128×(897-888)=649+215+81=164+143-113=910-26-667=350-(312+35)=95×5+476=373-(229+85)=8/10+2/10=787×7=28+43+151=64×8-399=943-73=735-653=716×3-634=804+(540-86)=520+466-879=355-295+69=32+(393-210)=394×(165-159)=842-(339+330)=53×5+244=955-55-273=324-232+146=451+(170-101)=213+(458-170)=145×6=867-(916-712)=456+236+69=838-268=287+271-81=327×3-608=762+841+280=152+34=997-821=117×6+120=725-28=321-46+228=712-(34+56)=149×(33-27)=138+(377-323)=445-(879-540)=87×4-247=715+(970-816)=35+322-143=431+272×2=170-41×3=209×7=222+287=401+(805-14)=444-73-308=254+214=406×2-352=445-(143+64)=444+159+190=713+405+686=516×8-936=445-25×5=277+180=118×4=384-70+76=470-338+360=937-17×8=688-551=321+116+960=255+64×5=912-119-391=109+85=292-(26+53)=3/5-2/5=359×7=265-(269-114)=106×9=290-94-38=471+51+44=290+54-263=344+76-202=225+116=270-69=994-(345+602)=449-(94+101)=780×8-918=80×9=137+918-185=488-(225+214)=63+(494-274)=62×7-336=287×3-251=183-72=133×4=300+153=43×4=272+962-618=962+83-72=365+109-259=371×3-934=752-100-170=100+31=740+128+72=117+155×3=824-150=465-(933-614)=602+888-864=66×9-255=396+29×6=128+98=891+705=190+75=370+122×4=397+(842-828)=923-830=165×(102-98)=423+88=369-(55+310)=156+(309-93)=4/7+3/7=148-92=4/10+3/10=194-23×8=424-(239+147)=64×(333-330)=159+372+376=991-931=874+23-65=457-251+144=428×4=847-(130+245)=95×(351-345)=316+212+123=151+55=60+458×2=129+456+707=489-130×3=530+975-336=109×(280-271)=645-(975-602)=485-67×2=296-33×4=274+(389-161)=111×(644-639)=921+802-677=497-201-94=175+(461-71)=961×5=14+(397-181)=762×2-244=378-39-52=553-182=609×(343-338)=695×2=172+(966-717)=206+132-153=239×(321-313)=582-250-324=329+120=358-26-113=491-(160-132)=768×(812-806)=609+(784-458)=628-537+806=355+205=218×3-189=863-599+230=998-543=942-(643+22)=37+89=510+66+126=495×(454-450)=313-90×2=262+(418-160)=356+(575-490)=64×(251-248)=219×9-957=843-802+770=627×8-348=444-(173-144)=476+608-127=812-(729-27)=103×8=930-629+282=386+494×2=398×2=202×(336-332)=241+(957-21)=525×7=341-221=389+(515-197)=28×8-122=485-168-282=909-670-222=641+257-399=610-458=94+22=500-(79-51)=438-(394-336)=126×(91-85)=394-(137+30)=432×2-192=328+(207-66)=85+(386-120)=948-(89+207)=321-208-89=159+16×8=329-(415-214)=471×6-568=965-770+576=108+342-439=131×(209-203)=724+144+910=473-336=701-250-93=769+(564-523)=501×7-351=2/5-1/5=363+(314-64)=507+184×3=236-(66-46)=582-384=574-420+237=996-539+640=272-(160-60)=244+15-220=673-578+891=381-299=346-(65+177)=386×2-636=791×3=632-(166+173)=980-369-415=52+(781-298)=192-(555-473)=285-(118+139)=132×7=295-257+176=926+(931-275)=432×2=892-129=908×(443-435)=93+37=304×2+621=47+76×4=44×6+888=468-251=46+841+471=741×5-171=185×2=57×(170-161)=299-(402-196)=40×(416-407)=84×(198-189)=562-415=584+309=327-(132+193)=491+(439-401)=328-253=2/4-1/4=604×(849-842)=47×9=131×(385-381)=255-(612-581)=413-228-77=813-(671-511)=311×(338-329)=826+(471-323)=2/7-1/7=272-54=19+368-240=431-(146+284)=720-245-121=681+(638-398)=279+185-405=888-262×2=318×3=337-25-77=264+519=174-(203-29)=314-57+12=147×(162-156)=594+81+180=358-127-132=172×3-355=355+125=216+80×8=972-(522-502)=483-(622-602)=77+365=622×(237-228)=1/4+2/4=407-240+46=220×6=496-(360-112)=180×(77-72)=187×2+217=325-134+279=279-206+126=130×2+388=399+202=428-203=192×4=195+715-152=165+192=416-266-22=791+823+717=357-49=468+(421-24)=724-21-591=563-95-125=359-(191+25)=102+(458-419)=185+233+27=270-(541-416)=367-17-232=630+308=355+197×2=381-18-198=479-61×7=605-167+460=383×(339-331)=413×4-261=159-10×3=169+85=429-91-99=174×4=113×3=481-247-163=259-116+216=476-443+963=431-(43+99)=408+(465-347)=955+974+456=685-501+280=328×2-462=244-(57+95)=65×(23-15)=521+88+247=280×9=693-(55+349)=104+112=5/8-1/8=328-300=29+137-132=663-29+952=587-(137+71)=3/5-1/5=432-227-98=221-36×3=109×(384-376)=395-10×4=101×2-105=281-(418-301)=230×2+388=61×4+410=404+461+38=98×8=147+(852-449)=393-95×4=296-13×9=530-69×6=476-447+340=416-193×2=887+867-700=126-44=88×2=305+(128-11)=997+129+144=454-28×9=36×(252-244)=206+86×8=106+(403-104)=107×4=626+91+41=114×3=109×(21-18)=184+695=36+175-16=885×(208-204)=408-227+19=224-106=721-267-331=897+171+889=354×2-703=105+275-254=156×9=881-170×3=216+74×6=1/6+4/6=215×3=692-599+805=775×2-813=370+(261-213)=547×4-377=40×4=515-62-147=316-(485-273)=931-(469-194)=220×(424-421)=618-379-186=564+241=466-33×2=142+161=908-28-451=414-277=759-(366+169)=2/3-1/3=525-(568-350)=941-100-61=770+782+553=55×3+73=362+130×3=945-70-686=397-47×8=203×6-700=627-(715-440)=133+252=153×7-558=165+258=821-134=517-85×6=616×(252-245)=602-572+419=145+303-236=385-191+256=203×4-412=64+208-112=965-559-222=252+154-86=97×(242-234)=365+43-177=938-69×7=170×4=696-212×2=956×6=72+251=484-(211+268)=503+715-951=249+(162-127)=446-218-35=207+325=535+(741-67)=218+(131-104)=193-175=202×3+75=311-46=126+797+15=243-184=224+214-61=498-209=317-78-204=939×8=435-174-105=323-36+32=527×9-255=561+854+492=176-(895-727)=417-(119+86)=124-21×4=986-57×6=578+62+132=63+(437-257)=2/8+4/8=702+462+886=774+892=222×2=690×2-824=564-118×3=633-14×4=715+348=901-229-77=363×(236-230)=696+(796-219)=460×(268-262)=261+(285-25)=408-(183+177)=853+(952-92)=734×(871-863)=339-77=142+243+42=235+497+92=422×2-98=842-(894-470)=684-109×4=428-(258+158)=4/8+2/8=475-405+351=399×7-212=61×(90-86)=61×(307-300)=400×2-227=485-133×3=188×5+565=388-(439-341)=262-(78+146)=69×4=470-382=269-101+276=175+(363-148)=905-84-57=971-960+686=918×(791-788)=180×9-70=20×3+33=997-322+265=780+(463-384)=746-(550+104)=417+506=515+618+302=22+(554-467)=787-585=10+(789-555)=265-(14+12)=110+10×4=590+(526-131)=291-73×2=248+531=參考答案340+142-224=258191×9-60=1659113×6+262=94097×(261-254)=67943+419+708=1170889-(156+284)=449405+110=515327+355+749=1431193-92×2=9693-(433+165)=95196-89+52=159399+221×2=84153+859-842=70646+817=1463431-226=205495-(168-60)=387632×6=3792620×6=3720463-448=15546+395+10=951363+16-77=302120×2+464=704296-(189-137)=244292-(475-194)=11393+815-443=765238+255-302=19170-(442-407)=35437-(362+70)=5577-508=69929-241+944=1632480-321=159594-(125+101)=368991-617-273=101112×5+723=1283234-150=84330-(361-145)=114665-44×8=313792+588+414=1794971-709+877=1139318-281+804=84127×3+31=112920+698-11=1607950-893+73=130673+845+392=191059+373-310=122149×6=894431-216=215886-83×2=720199+584+155=938931×5=4655425-(280+110)=35184-(213-189)=160314-284+238=268545-(697-169)=17471-60×3=291372-(140+107)=125306+62-287=81320+488+160=96870×6+140=560394-(376-280)=298222-64-113=45716×9-92=6352292-106-75=111305+934+307=1546698-(802-733)=629474-65×4=214285×(621-613)=22804/8-2/8=2/8683-67-273=343768+(239-99)=908384-26-344=1454+254=308163×4-512=140287×3=86154×(433-429)=2166/8-1/8=5/8388-12×7=304708-87×8=12915-(88+723)=104268-116-28=124813+166-408=57158+127=185310+681+799=1790591-321-75=195248+620+846=1714390-(173-74)=291713-49×8=321636-(39+193)=404107+720-301=52631×7=217294+(864-50)=1108866+98+214=1178237-149=88128-66=62732+998=1730494-191-54=24951+(386-236)=201635+125-231=529495+225+278=998202×(393-389)=808153×4+492=1104355×2-478=232210×4-36=804898-50×8=498236+(386-170)=452974+64×5=1294138×5+293=983193+282-154=321731×6=4386322-276=46893-(498+386)=9580+143+264=987373-(63+230)=80478-(121+352)=5907-97×3=616908-(224+656)=28111×5+587=1142124-100=24444+19-168=295524+401+570=149534×(405-398)=238628+747+75=1450167-141+186=212868×(876-871)=4340302×3-388=518276-13×8=172254-63+220=411241+634+42=917133×4-254=27845+14+592=651629+200×2=1029316+714-586=444348-(694-353)=7756×6-373=4163595-(712-155)=38313-65-131=117578×5-761=2129539+826-422=943145×5-232=493267-48-55=16466×6+819=1215444+212+36=692479-(154+240)=85345-68×2=209729+70×7=1219470-44×9=74462-358+185=2893/4-1/4=2/4935×9=841586+195=281471+(336-258)=549128+244+168=540355-246=109258+234×2=726203-(113-74)=164705-(43+554)=1081/7+4/7=5/7883-(534+287)=62799+79×9=1510119×7+197=103095×6-490=80289+190-406=73875-261-588=2645+181×4=769284-35=249278×6=1668904-735=169734+929+469=2132527+428-452=503333-154+181=360928+457=138579×(19-13)=474865-356+31=540318-130-80=108605+937=1542357×6=2142959-(879-370)=450850×4-911=2489305×2-313=297417-135-139=143107×3=321777-(817-207)=167193-138+386=441783-(110+61)=61211+473-320=164829×(812-807)=4145839-(260+171)=408218+56×3=386232-130=102637×(878-870)=5096879+320-139=1060288-(48+59)=181458-81×5=53436-346+45=135246+497=743104+220-55=26949×9=441134+350=484397×3-68=1123898-690+833=1041457×(792-789)=1371378+(432-290)=520517×5=2585486-(286+150)=5082+(811-225)=668798-(316+71)=411737+137×5=1422480×2+451=141144+259=303430×2-767=93262+114-183=193495×6=2970490+522-138=874612-11×9=513799-65+901=1635413-199=214259-245+448=462744+76×5=1124361-93-87=181185+245=43023+120=143974-126×4=47084+171=255292-64×2=164709-627+723=805458-189+583=852456-251-199=6500-(353-277)=424541-(412+23)=106514+85×9=1279156×7-944=148103×4=412464-34-148=282965-468-437=60721×(618-615)=2163308-(288-20)=40323-28×5=183823-152-138=5334/8-3/8=1/8493-(358+99)=36517+111+344=9723/7-1/7=2/7450×2-853=47310×2-223=397446-88=358264-61×4=205/8+2/8=7/8234×(860-851)=2106842+(757-678)=921252-(127-98)=22314×9=126639+525+433=1597638-(568-551)=621160-(245-176)=91688×(548-539)=6192822-(272+332)=218347-235+17=129821-50-455=3165/9+4/9=1265+(234-102)=397496+(880-212)=1164375-49×4=179434-(362-22)=94121+246-186=181991-(57-13)=947450+(273-204)=519452+66+162=680713-52×6=401710-608+434=536528+86-367=247722×(279-272)=505483×8+692=1356363-88×2=187284×(647-644)=852371×(272-264)=2968245+175=420415-36×5=235908-300=608504×5=2520694+581-89=1186802+346=1148490×2-664=31618+305-220=103318-150+111=279697-64=63393+212=305341-(469-384)=256887-124×3=515198+232=430391×7=2737430+245=675262+731-106=887430-(377-86)=139936+15+15=966682-180+67=569845×(291-286)=422572×2=144147×(419-416)=441417×3-809=442609-325=284746+45×6=1016247×3+86=827434-44×7=126738+83×8=1402333-(380-146)=99210-13+137=334838-127-415=2962/10+3/10=5/10745-95×5=27055+200=255169×7-841=342460-(110-90)=440239-(377-201)=63313×2+276=902324-176+160=308348-(16+107)=225354+249+73=676145-43×2=59429-69×5=84245+(859-415)=68915×5=75344-98=246780-71=709292×2=584148×5-45=695407+(386-19)=774342-204-115=23207-16+138=32923×6=13873×(75-72)=219229×9-196=1865465×2+13=9431/8+2/8=3/8901-(187+261)=453496-385+24=135415-41=374134+191=325353+641-33=96171+319+90=480153+749=902529-(739-487)=277783+956+485=2224713-(790-436)=359500-(189+135)=176404-(161-128)=37186+241×3=80937×8+503=79992+229+333=654249-71×2=107477-(287+27)=16379×2+183=341128×(897-888)=1152649+215+81=945164+143-113=194910-26-667=217350-(312+35)=395×5+476=951373-(229+85)=598/10+2/10=1787×7=550928+43+151=22264×8-399=113943-73=870735-653=82716×3-634=1514804+(540-86)=1258520+466-879=107355-295+69=12932+(393-210)=215394×(165-159)=2364842-(339+330)=17353×5+244=509955-55-273=627324-232+146=238451+(170-101)=520213+(458-170)=501145×6=870867-(916-712)=663456+236+69=761838-268=570287+271-81=477327×3-608=373762+841+280=1883152+34=186997-821=176117×6+120=822725-28=697321-46+228=503712-(34+56)=622149×(33-27)=894138+(377-323)=192445-(879-540)=10687×4-247=101715+(970-816)=86935+322-143=214431+272×2=975170-41×3=47209×7=1463222+287=509401+(805-14)=1192444-73-308=63254+214=468406×2-352=460445-(143+64)=238444+159+190=793713+405+686=1804516×8-936=3192445-25×5=320277+180=457118×4=472384-70+76=390470-338+360=492937-17×8=801688-551=137321+116+960=1397255+64×5=575912-119-391=402109+85=194292-(26+53)=2133/5-2/5=1/5359×7=2513265-(269-114)=110106×9=954290-94-38=158471+51+44=566290+54-263=81344+76-202=218225+116=341270-69=201994-(345+602)=47449-(94+101)=254780×8-918=532280×9=720137+918-185=870488-(225+214)=4963+(494-274)=28362×7-336=98287×3-251=610183-72=111133×4=532300+153=45343×4=172272+962-618=616962+83-72=973365+109-259=215371×3-934=179752-100-170=482100+31=131740+128+72=940117+155×3=582824-150=674465-(933-614)=146602+888-864=62666×9-255=339396+29×6=570128+98=226891+705=1596190+75=265370+122×4=858397+(842-828)=411923-830=93165×(102-98)=660423+88=511369-(55+310)=4156+(309-93)=3724/7+3/7=1148-92=564/10+3/10=7/10194-23×8=10424-(239+147)=3864×(333-330)=192159+372+376=907991-931=60874+23-65=832457-251+144=350428×4=1712847-(130+245)=47295×(351-345)=570316+212+123=651151+55=20660+458×2=976129+456+707=1292489-130×3=99530+975-336=1169109×(280-271)=981645-(975-602)=272485-67×2=351296-33×4=164274+(389-161)=502111×(644-639)=555921+802-677=1046497-201-94=202175+(461-71)=565961×5=480514+(397-181)=230762×2-244=1280378-39-52=287553-182=371609×(343-338)=3045695×2=1390172+(966-717)=421206+132-153=185239×(321-313)=1912582-250-324=8329+120=449358-26-113=219491-(160-132)=463768×(812-806)=4608609+(784-458)=935628-537+806=897355+205=560218×3-189=465863-599+230=494998-543=455942-(643+22)=27737+89=126510+66+126=702495×(454-450)=1980313-90×2=133262+(418-160)=520356+(575-490)=44164×(251-248)=192219×9-957=1014843-802+770=811627×8-348=4668444-(173-144)=415476+608-127=957812-(729-27)=110103×8=824930-629+282=583386+494×2=1374398×2=796202×(336-332)=808241+(957-21)=1177525×7=3675341-221=120389+(515-197)=70728×8-122=102485-168-282=35909-670-222=17641+257-399=499610-458=15294+22=116500-(79-51)=472438-(394-336)=380126×(91-85)=756394-(137+30)=227432×2-192=672328+(207-66)=46985+(386-120)=351948-(89+207)=652321-208-89=24159+16×8=287329-(415-214)=128471×6-568=2258965-770+576=771108+342-439=11131×(209-203)=786724+144+910=1778473-336=137701-250-93=358769+(564-523)=810501×7-351=31562/5-1/5=1/5363+(314-64)=613507+184×3=1059236-(66-46)=216582-384=198574-420+237=391996-539+640=1097272-(160-60)=172244+15-220=39673-578+891=986381-299=82346-(65+177)=104386×2-636=136791×3=2373632-(166+173)=293980-369-415=19652+(781-298)=535192-(555-473)=110285-(118+139)=28132×7=924295-257+176=214926+(931-275)=1582432×2=864892-129=763908×(443-435)=726493+37=130304×2+621=122947+76×4=35144×6+888=1152468-251=21746+841+471=1358741×5-171=3534185×2=37057×(170-161)=513299-(402-196)=9340×(416-407)=36084×(198-189)=756562-415=147584+309=893327-(132+193)=2491+(439-401)=529328-253=752/4-1/4=1/4604×(849-842)=422847×9=423131×(385-381)=524255-(612-581)=224413-228-77=108813-(671-511)=653311×(338-329)=2799826+(471-323)=9742/7-1/7=1/7272-54=21819+368-240=147431-(146+284)=1720-245-121=354681+(638-398)=921279+185-405=59888-262×2=364318×3=954337-25-77=235264+519=783174-(203-29)=0314-57+12=269147×(162-156)=882594+81+180=855358-127-132=99172×3-355=161355+125=480216+80×8=856972-(522-502)=952483-(622-602)=46377+365=442622×(237-228)=55981/4+2/4=3/4407-240+46=213220×6=1320496-(360-112)=248180×(77-72)=900187×2+217=591325-134+279=470279-206+126=199130×2+388=648399+202=601428-203=225192×4=768195+715-152=758165+192=357416-266-22=128791+823+717=2331357-49=308468+(421-24)=865724-21-591=112563-95-125=343359-(191+25)=143102+(458-419)=141185+233+27=445270-(541-416)=145367-17-232=118630+308=938355+197×2=749381-18-198=165479-61×7=52605-167+460=898383×(339-331)=3064413×4-261=1391159-10×3=129169+85=254429-91-99=239174×4=696113×3=339481-247-163=71259-116+216=359476-443+963=996431-(43+99)=289408+(465-347)=526955+974+456=2385685-501+280=464328×2-462=194244-(57+95)=9265×(23-15)=520521+88+247=856280×9=2520693-(55+349)=289104+112=2165/8-1/8=4/8328-300=2829+137-132=34663-29+952=1586587-(137+71)=3793/5-1/5=2/5432-227-98=107221-36×3=113109×(384-376)=872395-10×4=355101×2-105=97281-(418-301)=164230×2+388=84861×4+410=654404+461+38=90398×8=784147+(852-449)=550393-95×4=13296-13×9=179530-69×6=116476-447+340=369416-193×