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160-(61+65)=994-16=155+296=992-434-182=52×7=198+217=471-449=831-178+684=832+699-597=201+412=992-(240+32)=491+(390-64)=334-38-99=182-40=813-182+369=132×3+767=181-(463-367)=323-(320-129)=480-(44+87)=386-58-29=106×2+120=424×2-176=759×5-172=645-443+401=249-155=749-533+259=270×2+455=78×9-468=736-92=592×(188-182)=452+28-240=333×8-665=438-135-33=388-(963-897)=753+237=453-24-107=974-464-346=221-159=480-(487-348)=717+434-434=590+216+65=458+274=235×4=445-22-279=52×6-278=412-(386-119)=884+434+978=908-85-505=30×9+498=130×(107-100)=160+55=497-(93+84)=29+51=165-51+80=395+(459-373)=745-(32+31)=491×5=6/8-1/8=682+953-383=29×(479-470)=806×8=85×2-94=765-166+159=371×2=279-107-27=919×(850-843)=111+64=143×(364-359)=268-145+340=754×5-949=434-363=830-(808-140)=854-653+804=363-235=250×8=349+87-95=727-572=218-(370-352)=944-(476-335)=454-276+124=919-193-576=938+(987-380)=868-104+506=511-(97+151)=301-208=875+(614-421)=247+221-333=210-192+314=488-(287+30)=502+753-469=282×3+24=76+172=269×7=88×6+279=230×(267-264)=777×5-691=559×6-111=411×3-508=931+(166-115)=849×6-279=64×4+308=423-(250+94)=544-453=396-(126+199)=350-336=931×6=223+321=38×6-218=294-(127+149)=130+298+157=138-46+62=126×7=860-(26+452)=682+759+379=468×6=5/8+2/8=25×(354-349)=367-269+589=491-(448-54)=3/5-1/5=6/9-1/9=55+191=426-29×3=188×3=498-71×6=605+987=296-(130+36)=439+(434-303)=127×2+459=144+435+330=6/8+2/8=45×8-34=262-56+335=711-(553-141)=372+(554-20)=686+230×2=24+96=483-87×3=349-(65+203)=1/7+6/7=57+(426-111)=30×5+138=328-35+161=367×2-77=326-51=264-23×7=355-272=406-82×4=43+194-141=355+356=1/10+4/10=385-(456-255)=432+380+654=17+(52-46)=39×6-194=198-10+75=855-800+453=443-(265+23)=120×(285-281)=159-27-118=281-(414-373)=787-170+739=39+25=589+562+524=639+709=483-26-250=160×9-94=34+151+281=193+245=717+925-437=147×(196-190)=59+724+274=387-(67+153)=875+(766-708)=626+(628-537)=632-(383-201)=471-20×3=452-349=58-11×4=125×4=256+547-33=718+406×2=455-152-18=447+198+171=389-57=360-(287-80)=203+382+58=845-(341+388)=283-95-62=399×(394-389)=17+134×3=76+(461-405)=985-321+580=77×4=106×9-257=255+469×2=17+(371-176)=446+(393-17)=338+(492-464)=179+64+539=813-793=28×4=851-25×3=277+(437-263)=337+(286-122)=207-(120+83)=903×6=1/4+2/4=24+297-197=535+685-697=454-(252-220)=785×(740-735)=304+114-348=310-76+87=203+(166-76)=638-182+672=39×(482-473)=416-225+70=324+69×6=210×4=667+172=525+584=780×4-281=966+(987-615)=36+(113-104)=654+764=676+170+135=693-644=783-87×6=272×2-49=95×(795-786)=718-41×5=133+104-138=858-21-304=76+373=492-48×5=299×(400-397)=542+215=880-15×5=789×(695-688)=498+(317-227)=373×7-687=273×3+173=166×3=2/7+4/7=258-76×2=302-261+234=366-118+500=287-(110+91)=195+96+71=81-(180-102)=317-232-29=101×5+181=884-(275+400)=441×9-666=325-87×3=354+955-277=972-(125+55)=756×4=90×8-643=39+(374-271)=493-(279-212)=929×2=141+353×2=361-237=142+262=305×(391-388)=885-(797-255)=45×3+399=238×(497-493)=420+(204-126)=433×(254-251)=515-306+912=414-193-220=456-39×2=341-(63+100)=454-155×2=863×(910-907)=481-74-392=95-(18+34)=617-30×8=865×(374-369)=70×6-265=982-168=390-(49+274)=974-(216+539)=234+804-381=45+99=956-275×2=591+106=242×2=499-(109+203)=432-(203-36)=843-427=141-82=368-14=734+135+17=206×(311-308)=251-(152+57)=367+73×6=116×8+821=216+593+116=498-22×7=495-373+130=25+253+882=370+(204-86)=261×2-516=285×3-259=464-69=118-79=378-(111-55)=211×3=752+939-713=516-(725-466)=307-10×9=980+(952-147)=18×(442-437)=619-(446-92)=566×9=867-(282+146)=74+101=143×4-399=794-30×2=5/9-4/9=427+222-118=31+(458-345)=581-224×2=44+357-124=403-127-134=994-(355+348)=992-520-432=251-(312-245)=294-128+154=185+279-166=112-18=341-(275-255)=426-(289-123)=327+(359-299)=880-(704-514)=238+11×2=628×7=72×3=77+337=149+313=197-142-18=160×5-10=182+199+563=177+58=377-(367-178)=720+345×2=119+148+320=427-11-36=887-(391+197)=503-(146+100)=595-(261+333)=959×(390-387)=559-(92+229)=212-(100+63)=398-371+878=639+354-628=118-87+267=990-(647-623)=78×2-143=1/3+2/3=799-(656-251)=577+529+853=539×8-73=351×2-154=696+581+552=73×8+45=351×(713-707)=144-12×3=445+(290-171)=774+91×6=197+216=900×9-167=421+349-537=190-22×7=316-259+269=382-(181+30)=277+359+774=637+(882-332)=680-42+890=855-367×2=118×9-186=296×(202-199)=269+112×5=940-(157+698)=490-462=305-(481-263)=154+241-379=380+46-174=905+925=3/6-2/6=913+92×6=146+28-66=756+(803-357)=164+182=497+189=251-203=968-105-374=456-19-22=35+399+51=315-(141-113)=4/7+3/7=29×(125-121)=510+967+503=935×(831-824)=899-236-69=871+(308-161)=105-40+210=401+343+81=462-198+216=877-129-304=453-(284-277)=824×8=665×(354-348)=375-153+104=376-(818-659)=139-49=472-(335+95)=222×6-956=114×4=62×5=74+308-290=23×3+163=132×2-206=313-45-12=60+417+399=217+259×3=207+(302-77)=869+975+145=647+137+148=297-228=187-148+390=699+(736-404)=357-(385-169)=5/8-2/8=484-(674-584)=42+16+257=987+589-425=396-39+113=335-268+40=918+182×4=157×(282-277)=134+305=28×8=887-(389+59)=381-167-213=81+(467-235)=62+870+19=634+(775-423)=64×(134-131)=996-706+481=776-512-192=344-85×3=752×(333-328)=25+120=325-57×3=452-(37+60)=216-22×8=73×2+81=485+765-230=243×2=465-(243+97)=502×7-763=932-282=379-17=26×7+387=47×5=610-162+48=630+(692-86)=492-274+238=319+865-473=103+290-380=195-(245-98)=225-12-53=1/8+4/8=940-285-558=299+875-933=380×2-68=143+212=334-280+216=50×2=423-(32+204)=831-148×5=242+82-318=423+(160-145)=230-18×7=642-(391+50)=258×2+11=430-263-143=66×8-83=181+(928-643)=406×3-21=466-(238+211)=980-41-262=12+26=468-97×4=113×(88-85)=685-(475-283)=380-292+267=944-(264-91)=369-(110+162)=187-78=553+515+949=706-256+978=388-279=340+(624-260)=37×(289-280)=941-(673+106)=401-108=606-318=280-157=461-417+171=384-(456-151)=389-(362-149)=634-(390+186)=105+316-108=56×6=439-(150-138)=583+182+116=116+(813-719)=653-85×4=38+56=663+931-975=199×(808-803)=492+113+41=499-(114+261)=343-(482-418)=112+264=57×(151-146)=454×2=27+115×6=981-56×8=240-127-67=188×(183-179)=348+(379-174)=268-50+623=483+655-766=95×9-647=146+(376-307)=178×(426-422)=854+774=711-75×2=796-136×4=358-158-136=179-15+93=868-543=392+766=289+203-450=530×7-793=56×8-395=944-(751-579)=757+(732-731)=4/8+2/8=230+131-26=904-425-339=198-57=498-218-79=496-29×2=906-35-568=146×5+318=993-545-37=497×(864-859)=164-51×3=494-(94+312)=170+89=116×(324-316)=645×(772-769)=50×4=345-27×9=481-(155-17)=216×3=353×2-517=984-207+131=270-24=676+(436-21)=317-(57+216)=308+73+314=965×(407-401)=488-92-376=652×4=557×7-399=364-14+137=2/4-1/4=358+534-585=303+(243-136)=102×2=402+383+906=77×(212-207)=399-(388-383)=394×9=34+817-733=241×7=268×3-319=32×3=658×2=499-200-141=316+144×3=199×2+813=442-357+197=217+92×8=427-63-60=768+(636-378)=286+80=471-81=401×2=289-15×7=897×(691-687)=176×4-606=292×2-88=19×(562-556)=24+92=42+341-240=354-(750-724)=801+451-313=937+771+910=375-89+38=1/5+2/5=174-(167-49)=82×6=124×3+89=994-24-451=256×(801-796)=849-649+580=994-109-356=119+53=881-217×4=86+720+130=957-636-203=208+(462-168)=63×2=933-179×5=878-406-248=123+23-115=143+53×7=389+280+89=407+772+392=705+285+200=366-(498-260)=36+234+548=868-167+620=991+(810-69)=384+100=63+(774-166)=452-71-254=165×5-569=850-696=96×4=354+(303-178)=151×(33-29)=61+154+295=35×(212-205)=249×3+40=50+(304-186)=954-68=173×2=418+111×5=221×4-18=254+60-173=355-188=845-10-536=422-(415-285)=342+(314-111)=943+84+187=671×7=51×8-211=161×6-80=808-474-317=846-134×3=554+233×4=738-548-52=984-(292+185)=238+780-887=85+332=4/7-2/7=86+268-253=23×(865-861)=944+(737-273)=375+562+18=875×(251-243)=67×3=298-29×5=576-47-220=669-460=352-25×6=775-(506+78)=97×5=3/5-2/5=946-(16+743)=428-(212+103)=739-(643-249)=22×(154-149)=137×7-297=169+98=205-181+290=569-60-365=291-(492-488)=493-(651-466)=241-(109-38)=402×8=948-251-631=64×8+235=214×(152-149)=4/7-1/7=231-(293-134)=560-355+976=545-18×6=388-(174+38)=554+(337-241)=666+282+595=263+170=311-38×8=874-(389+134)=978+878=183-66+282=940-784=50+404-73=672+(941-345)=250+(180-62)=159+424+89=355-31×6=843-(367+392)=134-60=384+867-914=141+578-602=62+276+25=880-(83+157)=406-73=129+216×4=341-53=28+468-341=815×(220-211)=543-451=13×8=186×6-17=139×5=491-201=318-(441-137)=240+91=311×2+768=473×3-804=2/3-1/3=243-60=371+99×5=539+720-401=409+(424-285)=643+602=431-154×2=123×8+425=444+172×2=923-427=209+82×4=17×6=351-170=29×(451-448)=960-196+493=435-143×3=394+272+508=233+(493-311)=272-28×2=576-538+179=455+209=843-167=149+423+802=809-28×8=207×(471-467)=315-67-155=331+494-369=582-73×7=429-(489-311)=81×6=625×2-701=363-146×2=189+158×2=382-14×8=555+916+180=443-123×2=435+97=274×3=253-(71+26)=247×2-470=49×3+857=296+97=195+446+170=458-(202+247)=721+421+526=69×5+662=560×9=888×8-230=801-(604-562)=841-(165+148)=358+15-149=411×9=221+184=555+495+634=75×7-195=609+251×2=52-(192-168)=409-31=222+25-226=675×8=212+157+20=223×(129-125)=144×2=862+859-847=85×(516-512)=244+114=321-184=108×(172-163)=533-(286-264)=948+145×6=451+410+32=137×6-442=351-85-14=3/7-2/7=270+731+182=10+(965-184)=38+28-49=58+210+163=925-350=808-513-231=320-13×4=499-20×5=444+140+32=218+92×4=641+467-432=482-344+197=460-262-21=52×(442-436)=52+986+985=221+535=666-665+312=46+197-129=682-277=116+232×2=313+(473-91)=957-434-48=545-25×4=142×(374-370)=827×4-470=249×2+520=563+194=336-159-12=97×3=335-162×2=109×7-722=380+91-465=403-238-25=60×(127-124)=926-599=28+409-32=953+971+346=120+50=612-(661-141)=462-112×4=90×5+508=609+539-506=895-693+999=432+89×3=79×8+10=4/7+2/7=448-(52+20)=参考答案160-(61+65)=34994-16=978155+296=451992-434-182=37652×7=364198+217=415471-449=22831-178+684=1337832+699-597=934201+412=613992-(240+32)=720491+(390-64)=817334-38-99=197182-40=142813-182+369=1000132×3+767=1163181-(463-367)=85323-(320-129)=132480-(44+87)=349386-58-29=299106×2+120=332424×2-176=672759×5-172=3623645-443+401=603249-155=94749-533+259=475270×2+455=99578×9-468=234736-92=644592×(188-182)=3552452+28-240=240333×8-665=1999438-135-33=270388-(963-897)=322753+237=990453-24-107=322974-464-346=164221-159=62480-(487-348)=341717+434-434=717590+216+65=871458+274=732235×4=940445-22-279=14452×6-278=34412-(386-119)=145884+434+978=2296908-85-505=31830×9+498=768130×(107-100)=910160+55=215497-(93+84)=32029+51=80165-51+80=194395+(459-373)=481745-(32+31)=682491×5=24556/8-1/8=5/8682+953-383=125229×(479-470)=261806×8=644885×2-94=76765-166+159=758371×2=742279-107-27=145919×(850-843)=6433111+64=175143×(364-359)=715268-145+340=463754×5-949=2821434-363=71830-(808-140)=162854-653+804=1005363-235=128250×8=2000349+87-95=341727-572=155218-(370-352)=200944-(476-335)=803454-276+124=302919-193-576=150938+(987-380)=1545868-104+506=1270511-(97+151)=263301-208=93875+(614-421)=1068247+221-333=135210-192+314=332488-(287+30)=171502+753-469=786282×3+24=87076+172=248269×7=188388×6+279=807230×(267-264)=690777×5-691=3194559×6-111=3243411×3-508=725931+(166-115)=982849×6-279=481564×4+308=564423-(250+94)=79544-453=91396-(126+199)=71350-336=14931×6=5586223+321=54438×6-218=10294-(127+149)=18130+298+157=585138-46+62=154126×7=882860-(26+452)=382682+759+379=1820468×6=28085/8+2/8=7/825×(354-349)=125367-269+589=687491-(448-54)=973/5-1/5=2/56/9-1/9=5/955+191=246426-29×3=339188×3=564498-71×6=72605+987=1592296-(130+36)=130439+(434-303)=570127×2+459=713144+435+330=9096/8+2/8=145×8-34=326262-56+335=541711-(553-141)=299372+(554-20)=906686+230×2=114624+96=120483-87×3=222349-(65+203)=811/7+6/7=157+(426-111)=37230×5+138=288328-35+161=454367×2-77=657326-51=275264-23×7=103355-272=83406-82×4=7843+194-141=96355+356=7111/10+4/10=5/10385-(456-255)=184432+380+654=146617+(52-46)=2339×6-194=40198-10+75=263855-800+453=508443-(265+23)=155120×(285-281)=480159-27-118=14281-(414-373)=240787-170+739=135639+25=64589+562+524=1675639+709=1348483-26-250=207160×9-94=134634+151+281=466193+245=438717+925-437=1205147×(196-190)=88259+724+274=1057387-(67+153)=167875+(766-708)=933626+(628-537)=717632-(383-201)=450471-20×3=411452-349=10358-11×4=14125×4=500256+547-33=770718+406×2=1530455-152-18=285447+198+171=816389-57=332360-(287-80)=153203+382+58=643845-(341+388)=116283-95-62=126399×(394-389)=199517+134×3=41976+(461-405)=132985-321+580=124477×4=308106×9-257=697255+469×2=119317+(371-176)=212446+(393-17)=822338+(492-464)=366179+64+539=782813-793=2028×4=112851-25×3=776277+(437-263)=451337+(286-122)=501207-(120+83)=4903×6=54181/4+2/4=3/424+297-197=124535+685-697=523454-(252-220)=422785×(740-735)=3925304+114-348=70310-76+87=321203+(166-76)=293638-182+672=112839×(482-473)=351416-225+70=261324+69×6=738210×4=840667+172=839525+584=1109780×4-281=2839966+(987-615)=133836+(113-104)=45654+764=1418676+170+135=981693-644=49783-87×6=261272×2-49=49595×(795-786)=855718-41×5=513133+104-138=99858-21-304=53376+373=449492-48×5=252299×(400-397)=897542+215=757880-15×5=805789×(695-688)=5523498+(317-227)=588373×7-687=1924273×3+173=992166×3=4982/7+4/7=6/7258-76×2=106302-261+234=275366-118+500=748287-(110+91)=86195+96+71=36281-(180-102)=3317-232-29=56101×5+181=686884-(275+400)=209441×9-666=3303325-87×3=64354+955-277=1032972-(125+55)=792756×4=302490×8-643=7739+(374-271)=142493-(279-212)=426929×2=1858141+353×2=847361-237=124142+262=404305×(391-388)=915885-(797-255)=34345×3+399=534238×(497-493)=952420+(204-126)=498433×(254-251)=1299515-306+912=1121414-193-220=1456-39×2=378341-(63+100)=178454-155×2=144863×(910-907)=2589481-74-392=1595-(18+34)=43617-30×8=377865×(374-369)=432570×6-265=155982-168=814390-(49+274)=67974-(216+539)=219234+804-381=65745+99=144956-275×2=406591+106=697242×2=484499-(109+203)=187432-(203-36)=265843-427=416141-82=59368-14=354734+135+17=886206×(311-308)=618251-(152+57)=42367+73×6=805116×8+821=1749216+593+116=925498-22×7=344495-373+130=25225+253+882=1160370+(204-86)=488261×2-516=6285×3-259=596464-69=395118-79=39378-(111-55)=322211×3=633752+939-713=978516-(725-466)=257307-10×9=217980+(952-147)=178518×(442-437)=90619-(446-92)=265566×9=5094867-(282+146)=43974+101=175143×4-399=173794-30×2=7345/9-4/9=1/9427+222-118=53131+(458-345)=144581-224×2=13344+357-124=277403-127-134=142994-(355+348)=291992-520-432=40251-(312-245)=184294-128+154=320185+279-166=298112-18=94341-(275-255)=321426-(289-123)=260327+(359-299)=387880-(704-514)=690238+11×2=260628×7=439672×3=21677+337=414149+313=462197-142-18=37160×5-10=790182+199+563=944177+58=235377-(367-178)=188720+345×2=1410119+148+320=587427-11-36=380887-(391+197)=299503-(146+100)=257595-(261+333)=1959×(390-387)=2877559-(92+229)=238212-(100+63)=49398-371+878=905639+354-628=365118-87+267=298990-(647-623)=96678×2-143=131/3+2/3=1799-(656-251)=394577+529+853=1959539×8-73=4239351×2-154=548696+581+552=182973×8+45=629351×(713-707)=2106144-12×3=108445+(290-171)=564774+91×6=1320197+216=413900×9-167=7933421+349-537=233190-22×7=36316-259+269=326382-(181+30)=171277+359+774=1410637+(882-332)=1187680-42+890=1528855-367×2=121118×9-186=876296×(202-199)=888269+112×5=829940-(157+698)=85490-462=28305-(481-263)=87154+241-379=16380+46-174=252905+925=18303/6-2/6=1/6913+92×6=1465146+28-66=108756+(803-357)=1202164+182=346497+189=686251-203=48968-105-374=489456-19-22=41535+399+51=485315-(141-113)=2874/7+3/7=129×(125-121)=116510+967+503=1980935×(831-824)=6545899-236-69=594871+(308-161)=1018105-40+210=275401+343+81=825462-198+216=480877-129-304=444453-(284-277)=446824×8=6592665×(354-348)=3990375-153+104=326376-(818-659)=217139-49=90472-(335+95)=42222×6-956=376114×4=45662×5=31074+308-290=9223×3+163=232132×2-206=58313-45-12=25660+417+399=876217+259×3=994207+(302-77)=432869+975+145=1989647+137+148=932297-228=69187-148+390=429699+(736-404)=1031357-(385-169)=1415/8-2/8=3/8484-(674-584)=39442+16+257=315987+589-425=1151396-39+113=470335-268+40=107918+182×4=1646157×(282-277)=785134+305=43928×8=224887-(389+59)=439381-167-213=181+(467-235)=31362+870+19=951634+(775-423)=98664×(134-131)=192996-706+481=771776-512-192=72344-85×3=89752×(333-328)=376025+120=145325-57×3=154452-(37+60)=355216-22×8=4073×2+81=227485+765-230=1020243×2=486465-(243+97)=125502×7-763=2751932-282=650379-17=36226×7+387=56947×5=235610-162+48=496630+(692-86)=1236492-274+238=456319+865-473=711103+290-380=13195-(245-98)=48225-12-53=1601/8+4/8=5/8940-285-558=97299+875-933=241380×2-68=692143+212=355334-280+216=27050×2=100423-(32+204)=187831-148×5=91242+82-318=6423+(160-145)=438230-18×7=104642-(391+50)=201258×2+11=527430-263-143=2466×8-83=445181+(928-643)=466406×3-21=1197466-(238+211)=17980-41-262=67712+26=38468-97×4=80113×(88-85)=339685-(475-283)=493380-292+267=355944-(264-91)=771369-(110+162)=97187-78=109553+515+949=2017706-256+978=1428388-279=109340+(624-260)=70437×(289-280)=333941-(673+106)=162401-108=293606-318=288280-157=123461-417+171=215384-(456-151)=79389-(362-149)=176634-(390+186)=58105+316-108=31356×6=336439-(150-138)=427583+182+116=881116+(813-719)=210653-85×4=31338+56=94663+931-975=619199×(808-803)=995492+113+41=646499-(114+261)=124343-(482-418)=279112+264=37657×(151-146)=285454×2=90827+115×6=717981-56×8=533240-127-67=46188×(183-179)=752348+(379-174)=553268-50+623=841483+655-766=37295×9-647=208146+(376-307)=215178×(426-422)=712854+774=1628711-75×2=561796-136×4=252358-158-136=64179-15+93=257868-543=325392+766=1158289+203-450=42530×7-793=291756×8-395=53944-(751-579)=772757+(732-731)=7584/8+2/8=6/8230+131-26=335904-425-339=140198-57=141498-218-79=201496-29×2=438906-35-568=303146×5+318=1048993-545-37=411497×(864-859)=2485164-51×3=11494-(94+312)=88170+89=259116×(324-316)=928645×(772-769)=193550×4=200345-27×9=102481-(155-17)=343216×3=648353×2-517=189984-207+131=908270-24=246676+(436-21)=1091317-(57+216)=44308+73+314=695965×(407-401)=5790488-92-376=20652×4=2608557×7-399=3500364-14+137=4872/4-1/4=1/4358+534-585=307303+(243-136)=410102×2=204402+383+906=169177×(212-207)=385399-(388-383)=394394×9=354634+817-733=118241×7=1687268×3-319=48532×3=96658×2=1316499-200-141=158316+144×3=748199×2+813=1211442-357+197=282217+92×8=953427-63-60=304768+(636-378)=1026286+80=366471-81=390401×2=802289-15×7=184897×(691-687)=3588176×4-606=98292×2-88=49619×(562-556)=11424+92=11642+341-240=143354-(750-724)=328801+451-313=939937+771+910=2618375-89+38=3241/5+2/5=3/5174-(167-49)=5682×6=492124×3+89=461994-24-451=519256×(801-796)=1280849-649+580=780994-109-356=529119+53=172881-217×4=1386+720+130=936957-636-203=118208+(462-168)=50263×2=126933-179×5=38878-406-248=224123+23-115=31143+53×7=514389+280+89=758407+772+392=1571705+285+200=1190366-(498-260)=12836+234+548=818868-167+620=1321991+(810-69)=1732384+100=48463+(774-166)=671452-71-254=127165×5-569=256850-696=15496×4=384354+(303-178)=479151×(33-29)=60461+154+295=51035×(212-205)=245249×3+40=78750+(304-186)=168954-68=886173×2=346418+111×5=973221×4-18=866254+60-173=141355-188=167845-10-536=299422-(415-285)=292342+(314-111)=545943+84+187=1214671×7=469751×8-211=197161×6-80=886808-474-317=17846-134×3=444554+233×4=1486738-548-52=138984-(292+185)=507238+780-887=13185+332=4174/7-2/7=2/786+268-253=10123×(865-861)=92944+(737-273)=1408375+562+18=955875×(251-243)=700067×3=201298-29×5=153576-47-220=309669-460=209352-25×6=202775-(506+78)=19197×5=4853/5-2/5=1/5946-(16+743)=187428-(212+103)=113739-(643-249)=34522×(154-149)=110137×7-297=662169+98=267205-181+290=314569-60-365=144291-(492-488)=287493-(651-466)=308241-(109-38)=170402×8=3216948-251-631=6664×8+235=747214×(152-149)=6424/7-1/7=3/7231-(2