三年級數(shù)學(上)計算題專項練習附答案集錦

三年級數(shù)學(上)計算題專項練習附答案集錦266-15×2=383×2=355-140+247=142-(152-101)=892+686+32=595-(935-705)=258-26×9=55×8-202=42×8=481-369+292=401×4=280-205-46=413×2-793=874×5=63×7+323=278×(598-589)=296-(441-185)=165×(406-400)=753+829-845=107-26×4=300-203=447-96-151=491+952+769=16×2+190=265+219-269=665×2-95=40×9+392=380+(813-156)=997-(419-344)=100-22×2=24×5+442=83+326-162=472-419=183+105=108×9=452-79+129=34×6+156=93-(984-912)=387×2-769=411+(409-346)=310+609-616=846-688-151=429+(735-192)=793-384-127=737-117×5=23×6=93×(195-188)=510-281+746=392×5-698=136-112=114×(854-849)=456×8=739+713-218=425+749=771-(593+96)=784+397=344-225=295-45-61=698+(592-352)=402+(441-93)=220-168+157=16+137×6=32+258+144=105+76×9=579×6-518=147+214+829=294×2=537-(383+125)=12+485-253=820×4=945-449×2=633-136-359=214+(995-773)=188×(458-453)=458+(387-55)=301+159+409=223+340=275+58=185+91-251=21×(193-189)=762×8-373=294-143×2=438+25-242=362-115+72=471×2+388=399+(489-296)=879-774=885-697=2/8-1/8=286-(388-328)=173×(386-383)=494-170-183=760×3=84×9=904-(322-74)=135×6-477=18×(460-456)=456-(523-238)=146+293=127×(94-88)=741×4-928=36×(851-846)=775-(634+70)=2/8+5/8=740+67×5=12×(189-183)=221-112=143×5-342=471×2=930-(52+230)=280+10×4=775×(265-257)=507+238+200=405+37-333=387-174-53=369+(83-57)=454-(432-394)=89+369-135=688+(351-67)=127+23=473-(33+392)=3/5+2/5=419-(93+234)=296+595-231=658-635=48×(370-366)=246-66+309=793+560=783-493=686+486-797=678-192-400=296-103-160=849-792+530=192×(495-492)=965-169=254×3+924=439-304=468+483=617-228×2=844+(506-452)=7/10-1/10=140+299-407=309-(260-53)=163+24×5=839-(538+217)=207+(349-40)=47×6=74×5-222=41+72+741=907+488+213=73+320-143=201+231=97×9=275-(347-236)=24+661+33=644+(239-66)=249-(221-215)=80+131=44+157=140×2=272+230-378=142×5-638=131+(392-220)=182-100-18=15×8=848-132×6=132-65=126+691+32=64+18=439-105-329=7/10+2/10=86×9-702=727-(264+263)=200×(151-147)=967×(819-813)=976-499-291=235+(212-101)=37×8-19=594-(977-383)=159×3=480-(38-27)=148+430+388=10+358+16=765+(504-430)=110+56×8=849-326-70=3/8+4/8=324-71+150=109×6-609=345+491+85=75+34=705-109×3=802×(542-533)=595+(722-230)=150×3+867=208+(478-240)=352+105-36=798+61×9=118×8-578=575-424+523=851-311+936=247-33×2=483×4-792=763-206-56=4/6+2/6=115+240=970-822=254+62=347-83×4=90+160=95+291=779×7-48=300+270+79=338-(144+112)=63×8=456-(186+11)=624-16=466+81=917-179×2=377-(188+21)=192×(479-476)=214+232+374=293-166-121=618-(73+157)=635+448-978=394-(257+117)=473-221=128×7=371-15-315=454-123+110=970-(91+420)=722×8-591=189+132=506×9-329=618+(130-29)=531×9=866-654=888+(923-715)=151+(470-25)=391×2=216-13×8=299-12-193=205-(154-77)=632-346+361=33+177=631+617-675=195+179=500×(719-710)=884-822=360-(310+46)=176-(167-32)=390-55×7=228-212+211=274+187-12=959-256+216=3/5-1/5=171-160+364=322×2=600-594+809=290-191-47=474+(385-196)=428+578+640=391-(117+162)=839-34×6=65-27=2/7-1/7=117+180-160=434-49×4=152+(155-83)=842+505=283+103-77=239×(347-343)=4/8-1/8=275×(332-329)=683-(556-216)=183+(813-675)=273-(127+113)=57×6-31=425-107×2=696+33×7=52+431-328=58×6=290+11-218=211+38+608=433-407+409=910-321+26=367-(339-230)=555×(531-523)=200+81=147×6-146=156+782=514×5=385-(202+149)=498-489+311=396-62=408+(344-185)=340-36-288=617×9=201+219-259=767-(349+174)=227×(232-229)=79+902-851=54×8=607×8=156×4+92=917-(262+96)=839-260-290=838×6-364=216+165-172=549×9-857=156-(359-265)=57×8=451-109-81=473-12-157=644+793=489+(341-117)=977+883=486-22×6=706-300-186=166+151=342×(779-771)=87+191+514=332+205+234=413-201-39=949+(831-565)=123+323+347=845-(44+709)=900-(173+248)=239+(67-29)=860-(94+763)=3/5-2/5=371-119×2=944+771=302-89+80=636-251=670-41-404=263+206-275=407×(592-584)=363-(220+95)=146×6-86=128-10×8=255-156-96=14+464-55=246-(242-173)=476-(379-194)=429-(124+298)=270-211=596-588+543=544-339-196=55×9-249=344+159+307=920+(973-779)=432-11×9=29+261+391=288-47-152=372-271+293=652+100+248=346-(488-321)=461-414=455-55×7=60+(324-59)=356-(456-222)=93×(413-405)=833-180+39=214+(466-326)=327-55×4=253×3=124×3+490=737-(962-271)=3/8+2/8=115×2-42=175-18×7=521×(552-549)=417+(677-266)=251-145=192+(469-234)=291+223+402=99×4-346=543×(447-439)=517×4=441+(558-419)=886-13-407=802+395+482=379-86-163=500-126+90=265-11×7=980-95=276-(98+58)=443-324+173=343+(922-437)=938+827-29=387-65×2=271-51=168+268=785×(674-665)=195×4-153=758×7-898=968-69-177=801-434=673-(139-61)=768×5=788-200+347=860+136×5=319-26×7=373-(575-265)=785-191×4=122-63+226=449+(107-35)=388-145×2=644+618+725=500-(327+137)=20×7=450+589+341=345+307=911+879+51=450-21×9=757+437+854=318-72-237=477-268=336+318+220=965-128×4=242+810+595=459-233-93=571×(934-929)=227×3=666×9=554+974=59+89×3=232+(143-125)=739-(754-685)=942-58-848=93+642-480=724+(705-627)=692+181-296=81×9-106=765-(277+144)=312+(449-93)=240-208+76=236×4=487-160=745×2-270=804-(863-101)=80+173+117=482-368+692=273-61+157=140×(680-673)=854+872+832=345+103-18=530+706-714=145+86=748-(48+67)=719+734+885=500-287+275=91-75+333=164×3=156×5-591=372-265=2/6+3/6=411-93×4=499+227+246=152×(285-279)=239×(381-373)=414-(57+94)=766+747+908=826+446-216=361-(99+107)=277+139=76×(157-149)=130+130×6=276-(120+121)=12+(989-814)=817-(390+338)=839+47-464=662×(638-634)=62+(271-193)=453-194=16+249+240=600+223=36×(410-405)=807-(481-259)=975+415-371=659-(417-212)=510-377=254×5=703+91+18=875+(610-228)=393-227-129=470-(290-161)=534+190+258=834-(173+646)=487-(255+91)=472-(212-96)=278-197+139=383×5-560=210+163×3=72+84+654=179+268=80+351×2=121×4-297=991-618-334=686-286×2=118+242-112=402+175=18×8+234=479-25×9=296-44-50=414-87×4=304+297+266=490×2+37=220+77-28=312-174+355=395×4-961=74×(361-353)=228-10=10+527+443=403+(449-239)=28+456-151=416-281=299-(43+228)=941-910+501=338-258=227+162=120+(283-177)=631-56×4=751-275+291=226×4-18=648-568+129=221×3+478=365+267+231=787×8-760=850+37×5=335×2-360=329×2+551=25×(416-408)=855×(732-724)=148×6=411-272=477-(193+182)=928-59-387=75+42=371+79-71=860+30×8=273-196-71=65×6=144×(29-24)=290×3=466-(239-211)=135×5-191=387-144×2=971-440=430-(179+174)=605-43-146=446+416+824=189×3=95×(833-830)=599+74×6=448×3-795=405+(956-501)=391-(125+127)=320-111+79=370-158-29=389-193-31=533-(755-369)=713+543-833=921+954+816=906+996=359-(33+123)=297-22×8=493+(491-85)=336×(465-456)=572+981-634=532-(262+177)=4/7+2/7=527+264=482-33×7=339-88+153=336+396=237-(40+195)=739+874=951-(583-580)=92×6+683=635×5-866=283-72×2=109×7+881=952-(976-951)=540×(73-64)=945×2=57×2-45=362-344+476=825-671=607-16-304=881-(957-721)=373×2+467=954-658=485-(364-325)=99+228=340-(185+99)=149×3+994=395-(416-158)=970+449×2=184-132+874=539-(631-289)=220+275-177=356×2+15=451-317+366=793+28×6=241+118×2=941+458×2=123×4=216×9=187+395×2=30-20=142+74×2=585+952+814=253+53+521=341-(392-351)=406-(435-386)=24×(248-243)=825-288-312=371-197+176=725-156+846=52×(248-240)=321-(274-33)=344×7-26=446-(296+143)=374-50-180=105×(460-455)=301+51+560=156×6-165=378-(402-337)=119+325-234=17×(507-504)=54×(59-54)=378-(162+48)=597-(204+40)=108×9-294=177-13-79=104×2=27×(147-138)=3/7-1/7=358-49+111=451-86-286=845-230×2=494-40×7=142×(635-626)=860+406-325=408+(341-186)=1/8+2/8=237-114×2=80×5+42=134×7+427=249-134=823×7-815=870-613=381+81=119+(265-172)=29-(414-410)=828+676-857=353-185=386-261+229=468-(172+163)=25×8=452-365+342=421+182+197=208×2+473=125×8-27=176×3=19+(138-70)=466-(30+206)=472-(258-84)=11+314+366=244-(288-126)=200+451=852-135×6=117×6=918+(385-210)=696-226+951=4/9-1/9=978-302-297=106×(471-468)=826-(351-114)=619-160×3=867-567=172+118=897-61-195=666-663+866=486+30×2=327×3=418-199×2=987-334×2=474-446=469-15-203=545×5=531+(919-489)=401-(312+54)=107+(366-208)=555+228+210=217+42=452-59×6=496-81×3=511-(980-608)=854-285=633-382=604-15=500-(102+359)=884-(565+298)=157+299=406+(231-195)=720-(73+355)=193+(295-54)=874-836=77×(444-437)=5/8+2/8=434×5=2/6-1/6=410-(665-520)=79×7+189=456+153×6=643-542=367-87×3=985+180+621=249-(90-11)=4/10-3/10=837+16×3=829+481=837+935=493+(298-197)=89×8+147=618×4-832=149×(730-724)=497-61=187×3=444×2-318=831-601-114=267+875+145=283-206=581×4=4/6-2/6=485-182=225+483-587=61×2+310=256-(365-288)=981-311-285=862-320-398=125×2+136=830-727=348-66×5=191-11=252+42+347=2/4-1/4=467+(349-106)=576+342=125+131×5=574-260×2=5/7+2/7=467×2-500=469×9=448-237-28=354-(389-366)=764×9-875=515-353+340=170+94×4=357+172-261=797+665-671=28×6+749=79+101=949+(947-237)=386×8-751=353-(852-548)=179-170+739=502-(162+260)=75×5+144=750+749=58×6+294=166+847-272=384-69-55=899+768=447-163=426-179=94×2=530-409+775=765+329+740=998+421-629=407-102-98=307+11-104=584+974+117=919-168+637=478-96×4=203+173-329=207×2=378×3-432=97+339=769-244-354=166+988-281=587×6-122=886-20×5=211-203+102=423-13×6=83×3-59=665+236+22=47×5=731×5-999=241-174=911-190=595-(510+74)=268+202-358=104+(932-13)=917-(588+174)=91×(354-347)=313-(167-109)=977-172×3=288-143=816-(739-193)=345-(117+13)=639+(416-55)=386-(157+215)=338-(405-385)=455+284+160=288×6=238+122-257=141+299+230=455-(203+25)=421-64-55=211-30×5=95+205=64+181-190=31+154×6=299-(488-214)=809-140+389=923×8=927-34×3=466-(332+37)=839-(838-218)=478+(392-130)=227+848-402=830-106+556=531+655+589=364-(257-102)=39×(443-436)=101-21×4=685-(45+582)=679-92+450=231+85×8=846+519-870=46-15+276=225+340=213×(79-70)=563×(399-395)=125×3-95=195×3-78=813×(896-889)=382+14×7=155×2+47=917-844=1/5+3/5=97×4=497×(742-735)=394-15-43=819+562-644=893×(624-621)=496×2-174=461-94+78=440+82=639+157=參考答案266-15×2=236383×2=766355-140+247=462142-(152-101)=91892+686+32=1610595-(935-705)=365258-26×9=2455×8-202=23842×8=336481-369+292=404401×4=1604280-205-46=29413×2-793=33874×5=437063×7+323=764278×(598-589)=2502296-(441-185)=40165×(406-400)=990753+829-845=737107-26×4=3300-203=97447-96-151=200491+952+769=221216×2+190=222265+219-269=215665×2-95=123540×9+392=752380+(813-156)=1037997-(419-344)=922100-22×2=5624×5+442=56283+326-162=247472-419=53183+105=288108×9=972452-79+129=50234×6+156=36093-(984-912)=21387×2-769=5411+(409-346)=474310+609-616=303846-688-151=7429+(735-192)=972793-384-127=282737-117×5=15223×6=13893×(195-188)=651510-281+746=975392×5-698=1262136-112=24114×(854-849)=570456×8=3648739+713-218=1234425+749=1174771-(593+96)=82784+397=1181344-225=119295-45-61=189698+(592-352)=938402+(441-93)=750220-168+157=20916+137×6=83832+258+144=434105+76×9=789579×6-518=2956147+214+829=1190294×2=588537-(383+125)=2912+485-253=244820×4=3280945-449×2=47633-136-359=138214+(995-773)=436188×(458-453)=940458+(387-55)=790301+159+409=869223+340=563275+58=333185+91-251=2521×(193-189)=84762×8-373=5723294-143×2=8438+25-242=221362-115+72=319471×2+388=1330399+(489-296)=592879-774=105885-697=1882/8-1/8=1/8286-(388-328)=226173×(386-383)=519494-170-183=141760×3=228084×9=756904-(322-74)=656135×6-477=33318×(460-456)=72456-(523-238)=171146+293=439127×(94-88)=762741×4-928=203636×(851-846)=180775-(634+70)=712/8+5/8=7/8740+67×5=107512×(189-183)=72221-112=109143×5-342=373471×2=942930-(52+230)=648280+10×4=320775×(265-257)=6200507+238+200=945405+37-333=109387-174-53=160369+(83-57)=395454-(432-394)=41689+369-135=323688+(351-67)=972127+23=150473-(33+392)=483/5+2/5=1419-(93+234)=92296+595-231=660658-635=2348×(370-366)=192246-66+309=489793+560=1353783-493=290686+486-797=375678-192-400=86296-103-160=33849-792+530=587192×(495-492)=576965-169=796254×3+924=1686439-304=135468+483=951617-228×2=161844+(506-452)=8987/10-1/10=6/10140+299-407=32309-(260-53)=102163+24×5=283839-(538+217)=84207+(349-40)=51647×6=28274×5-222=14841+72+741=854907+488+213=160873+320-143=250201+231=43297×9=873275-(347-236)=16424+661+33=718644+(239-66)=817249-(221-215)=24380+131=21144+157=201140×2=280272+230-378=124142×5-638=72131+(392-220)=303182-100-18=6415×8=120848-132×6=56132-65=67126+691+32=84964+18=82439-105-329=57/10+2/10=9/1086×9-702=72727-(264+263)=200200×(151-147)=800967×(819-813)=5802976-499-291=186235+(212-101)=34637×8-19=277594-(977-383)=0159×3=477480-(38-27)=469148+430+388=96610+358+16=384765+(504-430)=839110+56×8=558849-326-70=4533/8+4/8=7/8324-71+150=403109×6-609=45345+491+85=92175+34=109705-109×3=378802×(542-533)=7218595+(722-230)=1087150×3+867=1317208+(478-240)=446352+105-36=421798+61×9=1347118×8-578=366575-424+523=674851-311+936=1476247-33×2=181483×4-792=1140763-206-56=5014/6+2/6=1115+240=355970-822=148254+62=316347-83×4=1590+160=25095+291=386779×7-48=5405300+270+79=649338-(144+112)=8263×8=504456-(186+11)=259624-16=608466+81=547917-179×2=559377-(188+21)=168192×(479-476)=576214+232+374=820293-166-121=6618-(73+157)=388635+448-978=105394-(257+117)=20473-221=252128×7=896371-15-315=41454-123+110=441970-(91+420)=459722×8-591=5185189+132=321506×9-329=4225618+(130-29)=719531×9=4779866-654=212888+(923-715)=1096151+(470-25)=596391×2=782216-13×8=112299-12-193=94205-(154-77)=128632-346+361=64733+177=210631+617-675=573195+179=374500×(719-710)=4500884-822=62360-(310+46)=4176-(167-32)=41390-55×7=5228-212+211=227274+187-12=449959-256+216=9193/5-1/5=2/5171-160+364=375322×2=644600-594+809=815290-191-47=52474+(385-196)=663428+578+640=1646391-(117+162)=112839-34×6=63565-27=382/7-1/7=1/7117+180-160=137434-49×4=238152+(155-83)=224842+505=1347283+103-77=309239×(347-343)=9564/8-1/8=3/8275×(332-329)=825683-(556-216)=343183+(813-675)=321273-(127+113)=3357×6-31=311425-107×2=211696+33×7=92752+431-328=15558×6=348290+11-218=83211+38+608=857433-407+409=435910-321+26=615367-(339-230)=258555×(531-523)=4440200+81=281147×6-146=736156+782=938514×5=2570385-(202+149)=34498-489+311=320396-62=334408+(344-185)=567340-36-288=16617×9=5553201+219-259=161767-(349+174)=244227×(232-229)=68179+902-851=13054×8=432607×8=4856156×4+92=716917-(262+96)=559839-260-290=289838×6-364=4664216+165-172=209549×9-857=4084156-(359-265)=6257×8=456451-109-81=261473-12-157=304644+793=1437489+(341-117)=713977+883=1860486-22×6=354706-300-186=220166+151=317342×(779-771)=273687+191+514=792332+205+234=771413-201-39=173949+(831-565)=1215123+323+347=793845-(44+709)=92900-(173+248)=479239+(67-29)=277860-(94+763)=33/5-2/5=1/5371-119×2=133944+771=1715302-89+80=293636-251=385670-41-404=225263+206-275=194407×(592-584)=3256363-(220+95)=48146×6-86=790128-10×8=48255-156-96=314+464-55=423246-(242-173)=177476-(379-194)=291429-(124+298)=7270-211=59596-588+543=551544-339-196=955×9-249=246344+159+307=810920+(973-779)=1114432-11×9=33329+261+391=681288-47-152=89372-271+293=394652+100+248=1000346-(488-321)=179461-414=47455-55×7=7060+(324-59)=325356-(456-222)=12293×(413-405)=744833-180+39=692214+(466-326)=354327-55×4=107253×3=759124×3+490=862737-(962-271)=463/8+2/8=5/8115×2-42=188175-18×7=49521×(552-549)=1563417+(677-266)=828251-145=106192+(469-234)=427291+223+402=91699×4-346=50543×(447-439)=4344517×4=2068441+(558-419)=580886-13-407=466802+395+482=1679379-86-163=130500-126+90=464265-11×7=188980-95=885276-(98+58)=120443-324+173=292343+(922-437)=828938+827-29=1736387-65×2=257271-51=220168+268=436785×(674-665)=7065195×4-153=627758×7-898=4408968-69-177=722801-434=367673-(139-61)=595768×5=3840788-200+347=935860+136×5=1540319-26×7=137373-(575-265)=63785-191×4=21122-63+226=285449+(107-35)=521388-145×2=98644+618+725=1987500-(327+137)=3620×7=140450+589+341=1380345+307=652911+879+51=1841450-21×9=261757+437+854=2048318-72-237=9477-268=209336+318+220=874965-128×4=453242+810+595=1647459-233-93=133571×(934-929)=2855227×3=681666×9=5994554+974=152859+89×3=326232+(143-125)=250739-(754-685)=670942-58-848=3693+642-480=255724+(705-627)=802692+181-296=57781×9-106=623765-(277+144)=344312+(449-93)=668240-208+76=108236×4=944487-160=327745×2-270=1220804-(863-101)=4280+173+117=370482-368+692=806273-61+157=369140×(680-673)=980854+872+832=2558345+103-18=430530+706-714=522145+86=231748-(48+67)=633719+734+885=2338500-287+275=48891-75+333=349164×3=492156×5-591=189372-265=1072/6+3/6=5/6411-93×4=39499+227+246=972152×(285-279)=912239×(381-373)=1912414-(57+94)=263766+747+908=2421826+446-216=1056361-(99+107)=155277+139=41676×(157-149)=608130+130×6=910276-(120+121)=3512+(989-814)=187817-(390+338)=89839+47-464=422662×(638-634)=264862+(271-193)=140453-194=25916+249+240=505600+223=82336×(410-405)=180807-(481-259)=585975+415-371=1019659-(417-212)=454510-377=133254×5=1270703+91+18=812875+(610-228)=1257393-227-129=37470-(290-161)=341534+190+258=982834-(173+646)=15487-(255+91)=141472-(212-96)=356278-197+139=220383×5-560=1355210+163×3=69972+84+654=810179+268=44780+351×2=782121×4-297=187991-618-334=39686-286×2=114118+242-112=248402+175=57718×8+234=378479-25×9=254296-44-50=202414-87×4=66304+297+266=867490×2+37=1017220+77-28=269312-174+355=493395×4-961=61974×(361-353)=592228-10=21810+527+443=980403+(449-239)=61328+456-151=333416-281=135299-(43+228)=28941-910+501=532338-258=80227+162=389120+(283-177)=226631-56×4=407751-275+291=767226×4-18=886648-568+129=209221×3+478=1141365+267+231=863787×8-760=5536850+37×5=1035335×2-360=310329×2+551=120925×(416-408)=200855×(732-724)=6840148×6=888411-272=139477-(193+182)=102928-59-387=48275+42=117371+79-71=379860+30×8=1100273-196-71=665×6=390144×(29-24)=720290×3=870466-(239-211)=438135×5-191=484387-144×2=99971-440=531430-(179+174)=77605-43-146=416446+416+824=1686189×3=56795×(833-830)=285599+74×6=1043448×3-795=549405+(956-501)=860391-(125+127)=139320-111+79=288370-158-29=183389-193-31=165533-(755-369)=147713+543-833=423921+954+816=2691906+996=1902359-(33+123)=203297-22×8=121493+(491-85)=899336×(465-456)=3024572+981-634=919532-(262+177)=934/7+2/7=6/7527+264=791482-33×7=251339-88+153=404336+396=732237-(40+195)=2739+874=1613951-(583-580)=94892×6+683=1235635×5-866=2309283-72×2=139109×7+881=1644952-(976-951)=927540×(73-64)=4860945×2=189057×2-45=69362-344+476=494825-671=154607-16-304=287881-(957-721)=645373×2+467=1213954-658=296485-(364-325)=44699+228=327340-(185+99)=56149×3+994=1441395-(416-158)=137970+449×2=1868184-132+874=926539-(631-289)=197220+275-177=318356×2+15=727451-317+366=500793+28×6=961241+118×2=477941+458×2=1857123×4=492216×9=1944187+395×2=97730-20=10142+74×2=290585+952+814=2351253+53+521=827341-(392-351)=300406-(435-386)=35724×(248-243)=120825-288-312=225371-197+176=350725-156+846=141552×(248-240)=416321-(274-33)=80344×7-26=2382446-(296+143)=7374-50-180=144105×(460-455)=525301+51+560=912156×6-165=771378-(402-337)=313119+325-234=21017×(507-504)=5154×(59-54)=270378-(162+48)=168597-(204+40)=353108×9-294=678177-13-79=85104×2=20827×(147-138)=2433/7-1/7=2/7358-49+111=420451-86-286=79845-230×2=385494-40×7=214142×(635-626)=1278860+406-325=941408+(341-186)=5631/8+2/8=3/8237-114×2=980×5+42=442134×7+427=1365249-134=115823×7-815=4946870-613=257381+81=462119+(265-172)=21229-(414-410)=25828+676-857=647353-185=168386-261+229=354468-(172+163)=13325×8=200452-365+342=429421+182+197=800208×2+473=889125×8-27=973176×3=52819+(138-70)=87466-(30+206)=230472-(258-84)=29811+314+366=691244-(288-126)=82200+451=651852-135×6=42117×6=702918+(385-210)=1093696-226+951=14214/9-1/9=3/9978-302-297=379106×(471-468)=318826-(351-114)=589619-160×3=139867-567=300172+118=290897-61-195=641666-663+866=869486+30×2=546327×3=981418-199×2=20987-334×2=319474-446=28469-15-203=251545×5=2725531+(919-489)=961401-(312+54)=35107+(366-208)=265555+228+210=993217+42=259452-59×6=98496-81×3=253511-(980-608)=139854-285=569633-382=251604-15=589500-(102+359)=39884-(565+298)=21157+299=456406+(231-195)=442720-(73