二年级数学上册100以内连加连减混合竖式精选2.pdf

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1、100 以内连加连减加减混合带括号练习题100 以内连加连减加减混合带括号练习题86-12-15=57+33+31=36-27+9=77-(19-16)=88-34-18=15+36+27=12+79-62=51-(20+28)=51+42+53=75-24-23=63+12+42=21+32+60=44+5+12=77-65-6=32+45+38=53-37-15=36+34-14=100-66-22=71-52+36=81-45+36=63-23+28=73-12-21=72-45+32=86-12-15=57+33+31=36-27+9=77-(19-16)=88-34-18=15+36

2、+27=12+79-62=51-(20+28)=51+42+53=75-24-23=63+12+42=21+32+60=44+5+12=77-65-6=32+45+38=53-37-15=36+34-14=100-66-22=71-52+36=81-45+36=63-23+28=73-12-21=72-45+32=175-(24+26)=(24-16)+40=48-(26+18)=21+(82-60)=54-(21-18)=75-(24+26)=(24-16)+40=48-(26+18)=21+(82-60)=54-(21-18)=67-37-22=67-37-22=21+82+17=21+8

3、2+17=73-27+10=73-27+10=54+54+(21-1821-18)=65-33-18=65-33-18=58+45+3=58+45+3=54-52+17=54-52+17=98-98-(51-2451-24)=75-63-1=75-63-1=43+29+13=43+29+13=17+27+10=17+27+10=75+15+30=75+15+30=12+29+19=12+29+19=63+18+11=63+18+11=35-28-28=35-28-28=55-38-15=55-38-15=92-6-11=92-6-11=69-10-36=69-10-36=45+15-47=45

4、+15-47=67-38+22=67-38+22=54-41+36=54-41+36=42-37+54=42-37+54=37+12-28=37+12-28=297-97-(34+2534+25)=60-60-(34+1534+15)=99-99-(8+778+77)=77-77-(34+2234+22)=67-67-(57-3757-37)=33+17+15=33+17+15=75-36-10=75-36-10=82-54+12=82-54+12=65-65-(39-1539-15)=62+18+24=62+18+24=54-21+18=54-21+18=53-29-19=53-29-19=

5、35+35+(42-2842-28)=86-12-15=86-12-15=89-54-18=89-54-18=51+42+53=51+42+53=75-24-23=75-24-23=63-12-42=63-12-42=57+33+31=57+33+31=85+36+27=85+36+27=97-65-6=97-65-6=32+45+38=32+45+38=53-37+15=53-37+15=36-27+9=36-27+9=12+79-62=12+79-62=71-52+36=71-52+36=81-45+36=81-45+36=43+23+28=43+23+28=377-77-(19-1619

6、-16)=51-51-(27+1827+18)=75-75-(34-2634-26)=94-94-(16+4016+40)=48-2648-26)+18=+18=(43+27+10=43+27+10=54-21-18=54-21-18=65-33+18=65-33+18=(68-6568-65)-3=-3=54+52+17=54+52+17=88-51-24=88-51-24=76-63+1=76-63+1=63+63+(18-1118-11)=65+15+47=65+15+47=72+31+42=72+31+42=121229+19=29+19=67-27-10=67-27-10=65-32

7、-15=65-32-15=57-30-25=57-30-25=60-14-35=60-14-35=69-10-36=69-10-36=33+17+15=33+17+15=32+1832+1824=24=43-29+13=43-29+13=17+27-10=17+27-10=272712-8=12-8=25+36-10=25+36-10=545421-18=21-18=435-35-(8+218+21)=55-55-(38-1538-15)=53-(47-38)=53-(47-38)=22+22+(34-1234-12)=5353(29(2919)=19)=3535121228=28=86861

8、21215=15=27+3327+3331=31=36+(27-9)=36+(27-9)=71-19-16=71-19-16=28+3428+3418=18=65-16+27=65-16+27=1212(29-12)=(29-12)=51-27-18=51-27-18=747424-26=24-26=545416-20=16-20=48-21-18=48-21-18=2121828260=60=51+4251+4223=23=555524+23=24+23=636312+42=12+42=212112+20=12+20=43+543+512=12=575745+6=45+6=323245453

9、8=38=52-17+15=52-17+15=36-14+15=36-14+15=10010046-22=46-22=571-71-(22223636)=81-81-(25253636)=13+13+(33-2833-28)=25-25-(12+1112+11)=7272(45-3245-32)=5454212118=18=6767474722=22=2121222217=17=8383(27271010)=6565333318=18=68+15+3=68+15+3=5454525217=17=8888(51512424)=767643-1=43-1=43+2943+2913=13=17172

10、7+10=27+10=555515+30=15+30=12+30+23=12+30+23=4343181811=11=3535181821=21=55-3255-3215=15=92926-11=6-11=56-42-8=56-42-8=6565151547=47=5757383812=12=5454414136=36=4242373754=54=56+43-90=56+43-90=67777(34342525)=6060(34343535)=99-99-(28283737)=7777(64-2264-22)=23+23+(65-1065-10)=93-76-14=93-76-14=63+18

11、+26=63+18+26=63+17-28=63+17-28=63-63-(28+1728+17)=96-50-23=96-50-23=12+29+19=12+29+19=69+10-36=69+10-36=(27+1227+12)-28=-28=67-27-31=67-27-31=23-(48-38)=23-(48-38)=26-(3+22)=26-(3+22)=56-(51-41)=56-(51-41)=25+25+(19-219-2)33-17+15=33-17+15=21-8+2=21-8+2=23-2+1=23-2+1=31-7+3=31-7+3=19+35-5=19+35-5=55

12、-36+10=55-36+10=32-16-8=32-16-8=13+2+6=13+2+6=18+6+3=18+6+3=43+10+5=43+10+5=772-5472-54)+12=+12=30+20+11=30+20+11=32-7-13=32-7-13=28-16-8=28-16-8=44-16-14=44-16-14=(43-43-(18+1218+12)=23-4+1=23-4+1=85+2+8=85+2+8=83-12-7=83-12-7=66-66-(29+129+1)=81-24-23=81-24-23=35+23-3=35+23-3=79+14+10=79+14+10=53-

13、53-(38+238+2)=21+21+(37-2737-27)=76-(19-12)=76-(19-12)=41-41-(10+1310+13)=60-(24-16)=60-(24-16)=85-18-38=85-18-38=67-43-7=67-43-7=74-12-12=74-12-12=75-(24+40)=75-(24+40)=53+12+11=53+12+11=4+27+47=4+27+47=14+32+18)=14+32+18)=65-(14-5)=65-(14-5)=64-(21+12)=64-(21+12)=844-16+8=44-16+8=76-24+10=76-24+10

14、=77-26+13=77-26+13=27-(18+2)=27-(18+2)=87-(32-11)=87-(32-11)=66-(18+12)=66-(18+12)=32+32+(18-918-9)=(17-1217-12)+35=+35=(45-3545-35)+51=+51=25-(7-6)=25-(7-6)=56-(31-12)=56-(31-12)=(12-1012-10)+45=+45=91-(26-16)=91-(26-16)=20-(19+1)=20-(19+1)=50+50+(11-1111-11)82+82+(17-1717-17)76-(25-15)=76-(25-15)=

15、25+25+(18-1318-13)29-(5+2)=29-(5+2)=46-(17-15)=46-(17-15)=29+29+(68-3868-38)=(16+1416+14)-18=-18=55-(13+7)=55-(13+7)=58-58-(13+713+7)=50-(16-12)=50-(16-12)=80-80-(68+268+2)=59-(14-24)=59-(14-24)=84+84+(60-5060-50)=97-(41-12)=97-(41-12)=9 42-(26-16)=42-(26-16)=38+38+(59-4959-49)=41-41-(17-717-7)=58-5

16、8-(34+634+6)=53-53-(16+216+2)=33-(27+3)=33-(27+3)=95-(64-4)=95-(64-4)=67+67+(9-59-5)=68-68-(30+1030+10)=26-26-(4+24+2)=86-(8+22)=86-(8+22)=32+32+(45-2545-25)=19-19-(10+410+4)=24-(14+6)=24-(14+6)=19-(14-2)=19-(14-2)=30-(19-9)=30-(19-9)=40-40-(2+382+38)=10+10+(75-6575-65)=65-(44+13)=65-(44+13)=83+83+(

17、15-815-8)=25-(11-5)=25-(11-5)=71-(49+1)=71-(49+1)=50-(40-10)=50-(40-10)=39-(16-4)=39-(16-4)=26+26+(27-2327-23)=86-(49-9)=86-(49-9)=37-(14+6)=37-(14+6)=37+37+(44-3444-34)=1016-16-(8+08+0)=54-(16-13)=54-(16-13)=42-(20-10)=42-(20-10)=24-(3+7)=24-(3+7)=44+44+(11-211-2)=34-(30-20)=34-(30-20)=81-81-(12-51

18、2-5)=50-50-(37-737-7)=28-(25-10)=28-(25-10)=30-(9+4)=30-(9+4)=49+49+(18+218+2)=81-(42+8)=81-(42+8)=38+38+(33-3333-33)=81-(66-56)=81-(66-56)=17-17-(74-7274-72)=23-(9+1)=23-(9+1)=52-52-(42+1042+10)=11-11-(72-6272-62)=(56-656-6)+19=+19=57-(20+20)=57-(20+20)=23-(16-6)=23-(16-6)=59-(57-7)=59-(57-7)=67+67

19、+(30-2030-20)=70-(25+5)=70-(25+5)=(29-1929-19)+60=+60=54+54+(25-2025-20)=30-(17-3)=30-(17-3)=98-(38+10)=98-(38+10)=88-88-(80+480+4)=15+15+(11-711-7)=12-(10-8)=12-(10-8)=23-23-(21+021+0)=(25+525+5)-23=-23=1160-60-(22+822+8)=46-(14-13)=46-(14-13)=73-(13-8)=73-(13-8)=85+85+(8-28-2)=59+59+(28-2028-20)=6

20、2-62-(30+1030+10)=72-(17+3)=72-(17+3)=79+79+(15-815-8)=62-62-(48+248+2)=20-(3+16)=20-(3+16)=14+14+(71-1071-10)=15+15+(78-5878-58)=67+67+(11-611-6)=80-(18-12)=80-(18-12)=28-(6+3)=28-(6+3)=18-18-(12+212+2)=5+5+(77-577-5)=21-(12+5)=21-(12+5)=52-(41-4)=52-(41-4)=63+63+(30-2030-20)=83-(39-19)=83-(39-19)=

21、74-74-(19+119+1)=28-(24-4)=28-(24-4)=1230-(5+4)=30-(5+4)=2+2+(35-1035-10)=10+10+(23-723-7)=43-43-(6+246+24)=68+68+(30-1030-10)=64-(17-9)=64-(17-9)=57+57+(19-919-9)=73-(26-16)=73-(26-16)=91-(68-48)=91-(68-48)=32-(23+7)=32-(23+7)=42-(16-12)=42-(16-12)=78-(21+17)=78-(21+17)=68-68-(10+2410+24)=33-33-(28

22、+228+2)=78-(11+9)=78-(11+9)=61+61+(14-514-5)=25+25+(19-1119-11)=37+37+(32-2232-22)=22-22-(16+416+4)=69+69+(10-810-8)=36-(16-10)=36-(16-10)=46-(2+18)=46-(2+18)=70-70-(35+3035+30)64-64-(13+1713+17)=56-56-(2+72+7)=46-(25+1)=46-(25+1)=70-(47-46)=70-(47-46)=66-(42-32)=66-(42-32)=63-63-(50+350+3)=83-83-(1

23、3+713+7)=93-(58-48)=93-(58-48)=56+56+(35-1535-15)=53-(8-7)=53-(8-7)=1389-(60+29)=89-(60+29)=24+24+(38-3038-30)=76+76+(18-718-7)=84-(72+8)=84-(72+8)=68-(26-20)=68-(26-20)=15-(5+1)=15-(5+1)=2+2+(71-5171-51)=53+53+(5+355+35)=44+44+(36-3136-31)=38-(37+1)=38-(37+1)=36-(35+1)=36-(35+1)=30-30-(17-917-9)=13

24、-13-(2+112+11)=60-(26-6)=60-(26-6)=88-(40-10)=88-(40-10)=19+19+(28-928-9)=53-(24-14)=53-(24-14)=2+2+(44-544-5)=43-(17+3)=43-(17+3)=78-(37+3)=78-(37+3)=79+79+(16-616-6)=54-54-(25+525+5)=76+76+(16-1216-12)=1484+84+(20-1720-17)=31+31+(56-656-6)=50-(25+5)=50-(25+5)=38-(36-16)=38-(36-16)=83-(13-11)=83-(1

25、3-11)=96-(69-62)=96-(69-62)=19-(6+5)=19-(6+5)=73-73-(13+713+7)=49-(19+1)=49-(19+1)=69-(39-29)=69-(39-29)=34-(15-12)=34-(15-12)=44-(17-11)=44-(17-11)=51-(21+10)=51-(21+10)=55-(30+10)=55-(30+10)=19-(6-3)=19-(6-3)=89-(2+8)=89-(2+8)=99-(39+1)=99-(39+1)=27+27+(19-1519-15)44+44+(37-3137-31)=77+77+(13-913-

26、9)=69-69-(5+255+25)=19+19+(51-5051-50)=91-(35-15)=91-(35-15)=14-(18-12)=14-(18-12)=64-(22-12)=64-(22-12)=43-(4+6)=43-(4+6)=86-(24+6)=86-(24+6)=20+20+(15-215-2)=1558-(6+14)=58-(6+14)=62+62+(29-1929-19)=22+22+(31-2131-21)=36-(5+3)=36-(5+3)=31+31+(19-1819-18)=20-(6+11)=20-(6+11)=43-43-(40+040+0)=10+10+

27、(44-444-4)=19-(9-6)=19-(9-6)=35-(18-17)=35-(18-17)=44-24+23=44-24+23=83-(65-35)=83-(65-35)=17+17+(76-7276-72)=18-(12+3)=18-(12+3)=43-(15-8)=43-(15-8)=45+45+(25-525-5)39-(38-28)=39-(38-28)=86-(65-35)=86-(65-35)=19+19+(10-610-6)=81-(2+7)=81-(2+7)=65-(13+6)=65-(13+6)=33-33-(68-6268-62)=28+28+(20-1620-1

28、6)=56-(5-3)=56-(5-3)=33+33+(40-040-0)=85+85+(11-211-2)=68-(9-2)=68-(9-2)=62+62+(20-1620-16)=1670-(18+2)=70-(18+2)=84-84-(8+28+2)=88-(18-6)=88-(18-6)=39-(17-3)=39-(17-3)=31-(41-12)=31-(41-12)=20-20-(1+171+17)=58-(19+1)=58-(19+1)=47-(7+23)=47-(7+23)=49-49-(20+2020+20)=49-49-(6+146+14)=21-(4-1)=21-(4-1

29、)=61-61-(2+182+18)=64-(46-16)=64-(46-16)=59-(13-6)=59-(13-6)=18-(13+4)=18-(13+4)=36-(35+1)=36-(35+1)=60+60+(35-1535-15)35-(20-10)=35-(20-10)=99-(10+30)=99-(10+30)=38+38+(43-2343-23)=43+43+(15-515-5)=71-71-(30+1030+10)=12+12+(27-327-3)=22+22+(44-344-3)=42-42-(25+525+5)=67-(45+13)=67-(45+13)=41-(12-6)

30、=41-(12-6)=28-(14+6)=28-(14+6)=1793-(83+10)=93-(83+10)=52-(30-13)=52-(30-13)=24+24+(16-916-9)=64-64-(31+531+5)=51+51+(39-2139-21)=45-45-(13+713+7)=24-(18-2)=24-(18-2)=58-(9+11)=58-(9+11)=19-(16-3)=19-(16-3)=77+77+(13-913-9)=69-69-(5+255+25)=19+19+(51-4151-41)=91-(35-15)=91-(35-15)=43-43-(40+040+0)=4

31、4-44-(24+624+6)=64-(12-2)=64-(12-2)=43-(2+8)=43-(2+8)=86-(24+6)=86-(24+6)=0+0+(95-295-2)=10+10+(44-844-8)=83-(65-35)=83-(65-35)=62+62+(29-2029-20)=88-(2+7)=88-(2+7)=22+22+(31-1131-11)=99-(4+4)=99-(4+4)=46-(5+3)=46-(5+3)=67+67+(12-312-3)=35+35+(19-1119-11)=20-(6+11)=20-(6+11)=31-(19-12)=31-(19-12)=35

32、-(18-17)=35-(18-17)=17+17+(76-3676-36)=18-(15+3)=18-(15+3)=1819+19+(20-620-6)=81-(23+7)=81-(23+7)=70-(48+2)=70-(48+2)=43-(15-10)=43-(15-10)=65-(59+1)=65-(59+1)=33-33-(18+218+2)=84-84-(48+248+2)=45+45+(25-2225-22)=28+28+(20-1020-10)33+33+(40-1440-14)68-(16-11)=68-(16-11)=58-(19+1)=58-(19+1)=21-(4-1)=

33、21-(4-1)=56-(5-3)=56-(5-3)=88-(18-9)=88-(18-9)=85+85+(11-211-2)=39-(17-3)=39-(17-3)=62+62+(20-1120-11)=51-(11-2)=51-(11-2)=47-(7+3)=47-(7+3)=49-49-(40+640+6)=61-61-(2+182+18)=64-(46-6)=64-(46-6)=1939-(18-9)=39-(18-9)=86-(65-35)=86-(65-35)=20-20-(1+151+15)=49-49-(36+336+3)=79-(13-4)=79-(13-4)=99-(10+

34、30)=99-(10+30)=38+38+(43-2343-23)=93-(83+7)=93-(83+7)=18-(13+4)=18-(13+4)=43+43+(55-2555-25)=71-71-(30+2030+20)=12-(10+1)=12-(10+1)=36-(35+1)=36-(35+1)=52-52-(27-327-3)=42-42-(35+735+7)=41-(11-1)=41-(11-1)=20-20-(8+18+1)=56-56-(49+749+7)=8+8+(44-244-2)=67-(45+5)=67-(45+5)=28-(3+6)=28-(3+6)=60+60+(38

35、-1838-18)=75-(6+3)=75-(6+3)=20+20+(16-316-3)=67-67-(3+53+5)=51+51+(13-713-7)=92-(28+2)=92-(28+2)=58-(39-19)=58-(39-19)=2060+60+(35-1535-15)=35-(21-11)=35-(21-11)=45-45-(3+53+5)=92-(44+6)=92-(44+6)=56-(11-4)=56-(11-4)=26-(24+1)=26-(24+1)=51-(14+7)=51-(14+7)=74+74+(14-914-9)=87-87-(34+634+6)=51-(18+2)

36、=51-(18+2)=83+83+(10-310-3)=21-(12-2)=21-(12-2)=54-54-(18+218+2)=73-(60-50)=73-(60-50)=82-82-(51+951+9)=84-(19-12)=84-(19-12)=83-(10+50)=83-(10+50)=34-34-(7+137+13)=77+77+(12-812-8)=94-(58-48)=94-(58-48)=34-(22-4)=34-(22-4)=23-23-(1+191+19)=57+57+(20-1520-15)=11+11+(51-5151-51)=26-26-(6+146+14)=(15-

37、915-9)=40-(38+1)=40-(38+1)=78-78-(18+118+1)=2123-(18+2)=23-(18+2)=12+12+(65-3565-35)=57-57-(8+28+2)=58+58+(45-4345-43)=17+17+(7-27-2)=84+84+86+86+(11-711-7)=68+68+(11-211-2)=87-(18-9)=87-(18-9)=90-(12+8)=90-(12+8)=20+20+(92-2792-27)=58-(15-6)=58-(15-6)=49-(16-13)=49-(16-13)=93-(18+2)=93-(18+2)=73-73

38、-(33+633+6)=20-(10+0)=20-(10+0)=82+82+(5-25-2)=26-(21+4)=26-(21+4)=71-71-(8+28+2)=94-(12-4)=94-(12-4)=38-(1+9)=38-(1+9)=9+9+(18-518-5)=62-62-(30+1030+10)=36-36-(19-919-9)=21+21+(13-413-4)=15-15-(12+812+8)=64-64-(8+18+1)=26+26+(15-715-7)=92-(15+5)=92-(15+5)=23+23+(68-6068-60)=47-47-(5+35+3)=56+56+(37

39、-3037-30)=42+42+(18-918-9)=52-(4+16)=52-(4+16)=2221+21+(16-716-7)=13-(10+1)=13-(10+1)=65-(14-5)=65-(14-5)=50-(7+2)=50-(7+2)=41-(16-12)=41-(16-12)=15-15-(19-1419-14)=35-(23-1)=35-(23-1)=32-(12-9)=32-(12-9)=33-(19+4)=33-(19+4)=27-27-(15+415+4)=66+66+(16-1016-10)=73-73-(25+525+5)=34-(6+3)=34-(6+3)=79-(

40、12-9)=79-(12-9)=46-46-(35+535+5)=21-(12+5)=21-(12+5)=64-(54-44)=64-(54-44)=19-(4-2)=19-(4-2)=67-(3+6)=67-(3+6)=12-(1+10)=12-(1+10)=23-(6+4)=23-(6+4)=82-(15-7)=82-(15-7)=66-66-(4+34+3)=2375+75+(14-814-8)=20+20+(19-119-1)=38-(14-5)=38-(14-5)=89+89+(12-212-2)=52-(13-10)=52-(13-10)=56-(15+5)=56-(15+5)=4

41、4-44-(6+36+3)=30-(13-9)=30-(13-9)=37+37+(18-918-9)=26+26+(40-3040-30)=50-50-(7+27+2)=55-(2-1)=55-(2-1)=61-61-(3+33+3)=30+30+(18-918-9)=32+32+(20-1020-10)=47+47+(32-2232-22)=68-(12-8)=68-(12-8)=82-82-(26+326+3)=85-(19-17)=85-(19-17)=76-76-(26+026+0)=70-(7+2)=70-(7+2)=44-44-(5+45+4)=32-32-(10+610+6)=3

42、2-(1+1)=32-(1+1)=37+37+(39-939-9)=82+82+(10-310-3)=89-(49+1)=89-(49+1)=12-(9+1)=12-(9+1)=2457+57+(10-510-5)=100-100-(80+1080+10)72-(60-50)=72-(60-50)=15+15+(18-1018-10)=67-(2+3)=67-(2+3)=52+52+(20-1020-10)=84-84-(27+227+2)=40-(10-8)=40-(10-8)=63+63+(12-812-8)=41-41-(17+217+2)=68-(25+5)=68-(25+5)=30-

43、(19-5)=30-(19-5)=73+73+(14-714-7)=26+26+(19-1219-12)62+62+(19-1119-11)46-(24+11)=46-(24+11)=52-(15+19)=52-(15+19)=43+43+(20-1520-15)=57-(12-4)=57-(12-4)=54+54+(18-918-9)=38+38+(13-513-5)=62-(53+7)=62-(53+7)=17-(10+1)=17-(10+1)=45-45-(10+1810+18)=37+37+(15-815-8)=58-(16+14)=58-(16+14)=79-79-(20-1320-

44、13)=95-(75-65)=95-(75-65)=2589-(36+3)=89-(36+3)=31-(17-14)=31-(17-14)=81-(17+3)=81-(17+3)=37-(15-6)=37-(15-6)=34-34-(13+713+7)=26-26-(16+316+3)=57-(26-16)=57-(26-16)=59-59-(15+515+5)=46-46-(7+27+2)=53-53-(21+1921+19)=51+51+(12-212-2)=36-36-(15+515+5)=79-79-(45+545+5)=30+30+(27-727-7)=50+50+(15-1215-

45、12)=15+15+(30-2030-20)=29-29-(8+128+12)=63-63-(25+225+2)=36-(11-9)=36-(11-9)=76-(35-32)=76-(35-32)=45+45+(12-312-3)=86-(17-9)=86-(17-9)=33-(12+11)=33-(12+11)=62-62-(2+82+8)=26-(6-5)=26-(6-5)=97-(25+5)=97-(25+5)=77-(27-12)=77-(27-12)=41+41+(17-1217-12)=2638-(14-7)=38-(14-7)=35-35-(16+316+3)=60-(28-18

46、)=60-(28-18)=54-(18-1)=54-(18-1)=66-(14+5)=66-(14+5)=59-59-(12+712+7)=39+39+(18-1618-16)=36-(12+9)=36-(12+9)=59-(16+2)=59-(16+2)=75-(19-13)=75-(19-13)=47-(6+14)=47-(6+14)=22+22+(14-414-4)=34-(18+7)=34-(18+7)=59-59-(33+733+7)=1212292919=19=3333171715=15=6262181824=24=8686121215=15=39-(11-4)=39-(11-4)=6969101036=36=7575363610=10=5454212118=18=5757333331=31=71+71+(15-715-7)=2727121228=28=7272545412=12=5353292919=19=363627279=9=2747-47-(28-1828-18)=6767272737=37=6565393915=15=3535121228=28=7777191916=16=

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