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1、小学三年级数学上册算题专项练习Prepared on 21 November 2021248 + 89 =75-16 =50 + 5 =7 0 0 X 7 =85 18 =155X5 =3X800 =45X9 =11 + 22 =9 + 18 =420 + 7 =35X2 =125-26 =115-24 =3X220 =35X4 =456+45 =564-12 =42020 =35X6 =90-19 =45X10 =93 + 3 =35X8 =12 + 24 =45-23 =880 + 4 =35X3 =130-27 =456-12 =1200-200 =35X5 =879 + 54 =564
2、5 =0 + 51 =35X7 =95-20 =56X12 =0 + 76 =35X9 =60-13 =78-23 =0X85 =125X2 =14623 =25X6 =704-7 =125X4 =457 + 456 = 100125X4 =25 X125X6 =-21 =25X7 =3=268+125=280125X8 =65 14 =26 + 9 二+40=66-22=46125X3 =546457 =57-38 =X20 二125X5 =7 + 14 =1500 700=4285-42=90-125X7 =105-22 =X2 =31 二60X9 =55 +125X9 =70-15 =6
3、60 + 3 =41 = 30X4二123 + 25 =896-546 =960 + 3 =81 +12=400 X80-17 =8 + 16 =180 + 9 =5=45 + 3=51 +10 + 20 =110-23 =65+15 =31=13X3=120-25 =604-4=120-50 二300 64二 64 X 10 = 6 + 6X7二 400X5=50-31=425X0=528 -0=450+80=57 +140=800 X 2=3000- 400=4204-7=6 X80 + 20二420-330=5X 28=60X5=17X3=12 + 88 二 630 + 9=350 +7
4、=700X2=18X4=320X3二60X15=724-6 4-2=400X3=8 + 2X20=22 +40 二7X8 7=56 + 8=380-190=400X6=50一23 二35X0=40X6=300X6=7 + 3X4=9026二8X6 +7=52+23=6X44-2=120X4=80X5二40X5=15X5 +5=600-50=56X 2=200-36=15+5 X3=380+50=789+ 0=3004-5=15X4 + 8 二680X0=40X25=6 X 6+6=43-24=11X9=120 X3=360+80=300X7=85+47=310X3二200X5=320X2=66
5、04-6=700X 2=80 X 3=70 + 550=800 X6=500 X 4=5404-9=14X5=350-80=570 +50=23X3=180+ 3=200义8 二530-70=850 X2 二26380=850- 2=98 +26 X0 二6X3=494-7=18+ 6=45 + 32二244-8=404-5=48004-2=200 2 二30 3 二6000 2二363=800 4二300 3 二48 2二994-9=264-2=600 3 二381 二934-3=77 7二400 2二800 4二50004-5=500 5 二84 4二900 9 二400 5 二274-9
6、=53+8=84+7=80-44=1800-900=49001800=420+80=430+1000=500-36=7000+3000二6 + 3X7 二660 + 3 =60 二5X7=8 + 4X3 二700X5 =89-8=72+ 9= 36 +6X5+37 二41X20 =64-8=34+9=6=81-12 + 4+18 二7000-3000 =144-7=5+58=9二42+13=24+16 4X8 二30X30 =644-8=6X3=3 二8+ 4+48 二10X47 =9X9 二24+8 二25 + 5+36 二30X23 =72 + 8 = 78+15 二27 32=42+13
7、 二6 X 842=40X30二83-20=43-426二7+44二20X24 =150 + 3 二30=94-424-7=57 + 29 =180 2 二1=280+450=7 64 8=540 + 6 =80 X 60二7=3600+5800=821 / 3 二10X73 =60X6二X4X8 二10X58 =400 5 二9+21=4600+470544-9=0 + 49 =80X7二0=730-49+ 7=42 7二34X20 =160 8 二190=3700-35 + 7 = 19+41 二80X90 =36+42二370=8500-24 - 6X3 = 4X830X70 =2104
8、-3=5500=3200+510一5二120X4 =4X200=0=96-42=120027+ 3+6 =640 + 8 =48 + 6X4 二-400=830-56-7-3=720 + 9 =900+700=300=800+900=549+ 9+7 二10X34 =90+80=8-4X3+2二65X10 =90+9=12-6=41 + 5 心1000 2二27 + 9X9 二200-60二50 + 7 %20004-4=75 9 210+10=164 + 2 入450 9二32 + 5-120-10=19 + 4 %900X2二60 + 8 仁130-50=70 + 9 心804-4=374
9、-6140-50=900X5二4904-7=20 9 仁200-40=140 2 二45-6=24 + 5 P300X6=40 X 60二100 2 二48 + 7-280 7二1500 5二30X6=15 + 2 仁240 8二210 3 二904-3=25 + 4 Q3X90 二80X4=80X60二80 + 9-200 5 二2404 二40010 二190-90=4X10 二80X7二9X9+12 二200-90=120 3 二160 2 二1001 二150-20=400X9二4X8+52 二50X50二70+30=810 9 二2000 + 4二720 8 二16-2=5X7-20
10、=2700 9 二810 9 二(1340+80=14 4 %4000+ 8二80X20二10-8=17 + 9-42004-6=180 9 二110-70=650 + 8 %8100 9 二270 9 二100-100=35 + 6-30004-5=270 3二6+10 二83 3-420 7 二30X40二240 6 二30X7二804-4=(14)10+60=8 4 二80 8 二140 2 二20+80=104-5=320 4二60X2二50+70二424-6=30X5二604-2=140-20=24-? 3=60 3 二490 7 二190-80=204-5=30X21 二1004-
11、2=60- 6二4 2 二630 9二54 + 6X4 二63+24二184-3=40X90二25 + ”424-7=12 6 二254-5X8=340 + 9 %5X21 二124-3=20+10二4708564-7=154-5=110-6=178 + 6-25+41二16 4 二70+80=812 + 9214 7 二304-5=140-2二201 + 5 入300X7=244-6=70+90=450 + 7 心120 / 2 二254-5=70+2=142 2 入4X9+40二20 + 5=140-7二35 + 4 心140-3=18 3 二70+50=464-912 6 二8X6=70
12、0+600=13-7=12 / 6 二39 24二17-1=30+20=154-3=324-8=720 8二30+70=20 4 二19-7=9X800二10+50=30 6 二12+6=52+35=19-4=244-4=12 6 二304-6=4X3 二64-6=364-6=49+25二15 3 二16 4 二36-0=484-6=85-69=254-5=644-8=2X8 二92-27=204-5=63 + 7 = 18 + 2 二5X9=21七3二37-35=244-4=9X6 二3X5 二29+43=20 4二8X7 二5X6 二71-35=15 + 6=6X8 二7X8 二36-24
13、=364-6=4X5=9* 4 二3X4 = 5X5 二26+13二8 + 12 二324-4=7X9 二65+33=154-5=724-3X1 二12X4二27-8=9=34+25=87-73+23=8 + 4 二35二2 X9二44+29=63-45-42=10 2 二9 4 二52=34+19=72-8=5X7=72七 8二0 24 二50-36=25 + 19 二10 + 5 二0X24 二53-32=9 3 二0X7 = 7X8 二0 + 245二634-6=30-r 5=0-?245 5 二120-49=9X9 二9=13+0=26+44二5024 4二80-36=8 8 二80-
14、27=424-7=34+64二53-16=3X7 二8X3 二42-16=18+62=9 1 二18 + 3 二60-58=61-37=8X1 二5X5 二28+56=32X3=67-54=9X110=22X4二1500-700 = 4267+23=36+52=23-18=X2 =80-37=58-46=54 + 17 二99 + 3 =55-38=68-46=12X3 二770 + 7 =16+25=68-37=840 4二660 + 3 =43X2二76-68=99+1 二960 + 3 =32+53=80X5=31X3 二180 + 9 =42+15二77-29=84-47=65 + 1
15、5 =21+79二66-38=280 2 二660 + 6 =120-43=72-39=320X2二800X2 =25-7=45+15=540 + 20二50 + 5 =62-35=17+46二9646二3X800 =47-29=200X4二80X50二420 + 7 =21X3=75+34=420-7=3X220 =44+17二57+33=65 + 35二480+4 =21+78=400 8二110X5=58 + 33 =76-37=22X4二73 28二42020 =93-17=23-18=930 3 二93 + 3 =28+35=54 + 17 二24X20二880 + 4 =40X3二
16、12X3二26+9=1200-200 = 1172-35=840 4 二57-38 =X7 =72+ 3二400 8二8046 =0 + 51 =550 + 5 =56+34二()X9=810 + 76 =800X8 =36+23二564-7=0X85 =420 + 2 =21+67=294-3=70 + 7 =63 + 3 =56 3 二9 5 二14X2 =1604-4 =43+26=294-3=5X900 =800 + 700 =61+46二244-5=2X200 =690 + 3 =58-45=5X ()二4584 + 4 =58-0 =10 3()X4=320 + 91 =2X440
17、 =5 2484-6=930 + 3 =48 + 2 =35 5 二43-? 5=390 + 3 =480 + 2 =824-9=544-6=0 + 22 =60X5 =514-7=494-5=83-57 =2X44 =844-9=794-8=29 + 68 =840 + 4 =464-6=6X ()二3668-49 =54+36=3X ()二 12()X5=3080X7 =37+55=()X4=20354-7=800 + 4 =73-35=36 4 二72-? 8=3304-3 =74+21二31 + 5 二27 + 8 二3X23 =120-73=134-2=214 二64 + 2 =29
18、X3=27 7 二37 4 二58 + 26 =90-47=41 6 二5X ()二2534X2 =70-32=2X () =10()X4=36364-9=21X3=75+34=420 7 二289=44+17二57+33=65 + 35二394-9=21+78=400 8 二110X5=614-7=76-37=22X4二73 28二484-9=93-17=23 18 二930 3二9X () =7228+35=54 + 17 二24X20二()X2=640X3=12X3 二26+9=724-9=72-35=840 4二57-38 =244-4=724-3=400 8 二1500-700 =
19、4267-54=9X110=22X4二X2 =67+23二36+52=23 18 二99 + 3 =80-37=58-46=54 + 17 二770 + 7 =55-38=68-46=12X3 二660 + 3 =16+25=68-37=840 4二960 + 3 =43X2=76-68二99 + 1 二180 + 9 =32+53二80X5二31X3 二65 + 15 =42+15二77-29=84-47=660 + 6 =21+79=66-38=280 2 二800X2 =120-43=72-39=320X2二50 + 5 =25-7=45+15=540 + 20二3X800 =62-35
20、=17+46=96-46=420 + 7 =47-29=200X4二80X50=3X220 =480 + 4 =68 49 =54+36二3X ()二 1258 + 33 =80X7 =37+55=()X4=20420-20 =800 + 4 =73-35=364-4=93 + 3 =330 + 3 =74+21二31 5 二880 + 4 =3X23 =120-73二13 2 二1200-200 = 1164 + 2 =2X3 二274-7=X7 =58 + 26 =90-47=41 6 二80 46 =34X2 =70-32=2X () =100 + 51 =550 + 5 =56+34二
21、()X9=810 + 76 =800X8 =36+23=56-7=0X85 =420 + 2 =21+67=294-3=70 + 7 =63 + 3 =56 3 二9 5 二14X2 =160 + 4 =43+26二294-3=5X900 =800 + 700 =61+46二24+ 5二2X200 =690 + 3 =58-45=5X ()二4584 + 4 =58-0 =10 3()X4=320 + 91 =2X440 =5 248 6二930 + 3 =48 + 2 =35 5 二434-5=390 + 3 =40 + 2 =824-9=544-6=0 + 22 =60X5 =51 7 二
22、494-5=83-57 =2X44 =844-9=79 8二29 + 68 =840 + 4 =46 6 二6X ()二3661-I-7H 48小9”9X () 12 ()X2H6 72-I-9H24-I-疗14-I-7H23小6“47-kT7X () H28 ()X3R37-I-5H6X () R ()X6H48 28-I-7H17-I-2H0-I-6”19-I-8H7 义()H56 ()X1H7 54-I-9H64-I-8H()X5H3542-I-6H30-I-8H15-I-2H17-I-6H32-I-5H3X () 48()X3L212-I-6H40-I-8H33 小 9H16-I-2H
23、19 小 2H43 小 5H67-I-9”9-I-4”8X () H16 ()X3H27 42-kT23 小 5H35-I-6”29-I-5H()X5H3。5X () H25 ()X4H36 36-I-9”28-I-9H39-I-9”56-I-8H28-I-3H65-I-8H26-I-3H51-I-8H8X () H4()X4663-I-7H34-I-6H10-I-7H77-I-9H58-I-9H41 小 7H66-I-7H2X () L4 ()X7H63 24-I-6H49-I-9H35-I-4H29 小 9H29-I-4H2X(：846-I-8H17-I-7H9X () H45 ()X9H
24、54 32-I-4H54-I-6”25-I-4H23-I-3H23-k号6X () H12 ()X8H2433 5 二40X9=65+35=644-8=9IX ()二423X30二2+46=464-7=50()X3=984-? 4=4-6=494-7=15 3 二04-8=454-5=12X4二394-9=93-19 2 二50X9二39=86-68=1000234-6=4X25 二-300=224-4=994-9=29+63=54-7X () 二49754-5=45=7X7=754-9()X7M22054-5=814-9=248=46X10 二800-26 4 二8X6=72+19=6260=86X0=47037 8 二4-1=1804-180=544-8=48-4-8=80=554-7=38+5554-6=45+37=4X7=552=9X () =180-550=500-250+630=77+33()X8=64370=25+75=380+70=500-18 6 二55+88=69+24=3490=634-7=644-9=50-80=77+66=64-6=694-8=790+130=87-95-68=19 + 3 二29=800-510 3 二330=99+11=257-257=