小學(xué)簡便運(yùn)算巧算專項(xiàng)練習(xí)(二)

1、93X40-3X40=89X31-19X31 =949+9229+9 =750+9210+9 =66X34-26X 34=684X 89+ 684=90X70-30X70=243+5+7 + 5 =120+9+690+9 =468X69+468=11X32-1X32=701-8+ 19+8 =67X53-37X53=61 X 75-41 X 75=154-6+ 146+6 =48X69+48=746X89+746=157+8+323+8 =72X35-2X 35=94X 934X93=744+6204+6 =95X43-75X43=802+8 242+8 =561 + 5211 + 5 =10

2、10-6-470-6=90X 75- 20X 75=86- 6+ 214- 6=527X89+527=551 + 6131 + 6 =179-9+ 181 + 9 =256+ 6+ 164+ 6=92X5212X52=318+2158+2 =1115+7555+7=865- 9- 235+ 9=540X49+ 540=98X 1378X13=222+2 42+2=426+ 6 66+ 6 =61 X 94- 1 X 94=80X6820X68=74 + 2 + 6 + 2 =70X63-20X 63=86X 9556X95=10+1 + 70+1 =190X 9+ 190=975X69+ 97

3、5=337+ 5+ 113-5 =85X64-65X 64=83X 15- 33 X 15=251 + 491 + 4 =52X3042X30=79X 25-9X25=47+3 + 43+3=54X914X9=63X 89-3X89=33+3+117+ 3 =37X25 17X 25=480+7 200+7 =68 + 3 8 + 3 =151 + 6+29+ 6 =96X35 46X35=891X29+ 891 =35 X 19+ 35=52 + 4+68+4=968X59+ 968=158+558+5 =73X81 43X81 =93X9663X96 =538+6178+6=717X39+

4、 717=98X 1-48X 1 =81X5311X53=759X49+ 759=57X997X99=200 X 19+200=996X59+ 996=546+ 6 186+ 6 =79X38-59X 38=336X49+ 336=232+8+ 168+8 =51X8241X82=33X40 3X40=152+9+658+9 =12X69+ 12=582X69+ 582=486- 5-136-5 =86X906X90=95X90 25X90=190+ 9+80-9 =529+ 6+ 11 + 6 =393+5193+5 =67X 1027X10 =553- 7-203- 7=1357- 9-5

5、47-9 =67X94-47X 94 =317+ 8+3+8=123+4+237+4 =59X22-29X 22 =526+ 9+284-9=1358+9548+9 =82X6262X62 =172+8+ 148+8=32+8+288+8=84X34-24X 34 =93+7 + 47+7=1191 + 9471 + 9 =79X77 19X 77 =591 + 7 171 + 7=93X 20- 73X20=85X9345X93 =143+ 4+ 177+ 4=15X 49-5X49=67X51-47X 51 =391 + 6+89+6 =85X44 25X44=84X10-14X 10 =

6、667- 8-267-8=516X89+ 516=72X2222X22 =99X69-49X 69=73+ 1 23+1 =35+8+125+ 8 =85X295X29=748+5 298+5 =7 + 5+93 + 5 =78X5728X57=291 + 9+159+9 =16 + 2+104+2 =73X81-13X 81 =34+ 5+166+5=15+7+55+7=82X3052X30=119+1 39+1 =186- 2-86-2 =51X3211X32=15+ 5+85 + 5 =819- 8-259-8 =65X4 45X4=327+4 47+4=173- 5-73-5 =5+1

7、 + 55+1 =116+8+284+8 =142+862+8 =1047+9 417+9 =247+2 87+2=972X49+ 972=666+ 9+ 144+ 9=955+8 395+8 =61X4331X43 =67X94- 17X94=94X39-4X39=253 X 19+253=87X73-67X73=158X69+ 158=277X 79+277=42X56-2X56=179X29+ 179=99X34-79X34 =92X95-32X95=83X 8-13X8 =471 + 5221 + 5 =62X2-2X2 =80X 3-0X3 =274+8+366+8 =349X89+

8、349=78X48-38X48=633+8+87+8 =83X6923X69=83X4-13X4 =761 + 841 + 8 =910X29+910=74X80-14X80=445+595+5 =701 X 19+701 =80X 7-10X7 =1007+8 287+8=461X39+461 =61X99-31X99=166+9+284+9 =349+ 9+371 + 9=329+6+31 + 6=70X 1560X 15 =38+7 + 452+7 =47+ 9+223+9=956X 69+ 956=105+4+255+4=49+ 5+301 + 5=88X8438X84 =1090+7

9、 460+7 =608+4 288+4 =90X54-50X 54 =331 + 751 + 7 =234+8+86+8=76X 10-56X 10 =957- 9- 147+ 9=790+9160+9 =59X 1839X 18 =432+532+5 =1024- 7- 394- 7 =87X33-57X 33 =475- 9-25-9 =45+ 7+235+7=92X9752X97 =1380+9570+9 =98X6858X68=85X695X69=745- 7-325- 7=68X828X8 =87X6477X64 =76X3326X33=59X89 19X89=55+3 25+3=7

10、4 X 18-4X 18=91X31 61X31 =239+ 9+211 + 9 =81 x 9861X98=86X656X6 =340- 8-100-8 =64X884X88=235+4+45+4=201 + 441 + 4 =59X 1-19X 1 =321 + 3141 + 3 =70+1 10+1 =34X76 14X76=57+ 1 17+1 =492+9132+9 =94X1044X10=920+9 290+9 =727- 5-327-5 =78X3448X34=828+9108+9 =268+288+2 =99X3239X32=204+4 4 + 4 =52 + 6+248+6

11、=95X2 65X2=96+ 4+64 + 4 =11 + 9+79+9=328+388+3 =95X 6865X68=922 X 19+ 922=188+9+262+9=67X 61 37X61 =79X5339X53 =512+6152+6=80X 13- 10X 13=95X4615X46 =42+1 12+1 =93X37 63X37=290X79+ 290=89+8 + 471 + 8 =79X9+79 =977X 49+ 977=27 + 4+253+ 4 =80X 12-70X 12=769X 49+ 769=749- 6-329-6=52X99 32X99=739X 69+ 7

12、39=126+ 7+ 434- 7 =11+2+9 + 2 =95X89+ 95=78X5 8X5 =500X59+ 500=80+8+560+ 8 =235X 39+235=38X26 18X26=86+3+184+ 3 =301+ 9+329+ 9=236+8 + 404+8 =272X29+ 272=639- 8-159-8=290+590+5=63X2 43X2=299- 3-29-3 =36X73 6X73=90X97-10X 97 =539+ 8+ 101 + 8=69+9+471 + 9=97X9227X92 =314+ 7+ 246- 7=587+7 27+7=63X2943X

13、29 =267+8+213+8=849+6309+6 =70X73-20X 73 =416+ 8+64+ 8 =299+7+331 + 7 =91 X 47 11X47 =516+ 7+44+ 7 =81X661X6 =84X32-44X 32 =639- 7-289- 7=42X87 2X87=67X71-57X 71 =616+ 9+ 14+ 9 =24X76 4X76=65X83-45X 83 =93X69-53X 69=903+8183+8 =56 + 4 16+ 4=91X81 81X81 =542+7192+7 =46+316+3=70X 1-60X 1 =574+6 274+6

14、=32+1 + 28+1 =348X29+348=244+8 84+8=198+438+4 =42X7712X77=186+7+304+7 =373X 69+ 373=217- 4-57-4 =194+8 34+8=95X47-55X 47 =56+7+294+ 7 =121 + 931 + 9=196X 69+ 196=168+268+2 =228+9 48+9=42X4222X42 =29+19+1 =31 + 211+2 =78X 1458X14 =162+7+328+7=54+ 4+106+4=64X87-44X 87 =352X79+352=49X 59+ 49=604+ 6 124

15、+ 6 =99X88-69X 88=266X29+ 266=3 + 3+117+3=58X8528X85=90 X 19-60 X 19=690- 8-290-8 =885X 49+885=139+9+221 + 9 =473- 9-203-9 =316X 29+316=645+7155+7 =110+ 9+430-9 =92X7432X74=277+8+123+8 =164+ 7+256- 7 =80X84-30X 84=90+ 4+270+4=548+8+ 172+8 =767 X 19+767=193+7+17+7=942+9222+9 =948X79+948=272+6+268+6 =

16、108+9+702+9 =471X79+471 =148+9+302+9 =1506+9 696+9=433+5133+5=613X59+613=10X63-0X63=697+6337+6=60X51-20X51 =19 + 4+21 + 4=71 X 19-21X 19=30X60-10X60=73+7+207+7 =64X79+64=80X62-70X62=253+273+2 =681X39+681 =31X48-21X48=436+ 5 86+5 =94 X 10-54X 10=59 X 13-9X13=226+266+2 =25X73-5X 73=73X 33X3 =84+7+126+

17、7 =897X49+897=87X63-37X63=361 + 781 + 7 =90 X 19-30X 19=978X49+978=102-9+ 168+9 =80X59- 10X59=75 X 15-35X 15=41+2+19+2=70 + 4 30+4=96X 7826X78=724X 39+ 724=98X3238X32 =158+ 1 78+ 1 =870X49+ 870=326+ 8+ 394- 8=83X 9+83 =31X3 21X3=1077+6537+6 =83X 13- 3X13=674X 9+674=310- 2-150-2=43 X 81 13X81 =517X 4

18、9+ 517=826- 6-286-6=188X29+ 188=88X7228X72 =47+7+163+ 7 =71X3861X38=82X9322X93 =82 + 3+8 + 3 =644X59+ 644=878X49+ 878=129+ 1 59+ 1 =71X59 41X59=480X89+ 480=21 + 8+59+8=75X6215X62=351X69+ 351 =24X31-14X 31 =681 + 5 231 + 5 =409+ 7+81 + 7 =91X7881X78=359+8 + 41 + 8=38 + 5 + 412+5 =436- 8-196-8=654+4 2

19、94+4 =53+8+187+ 8 =185+ 6+ 355- 6=703+5 253+5 =42 + 8+358+8 =510- 6-210-6=803+7383+7 =67X52-27X 52 =428+5+22+5 =719+9359+9 =54X5244X52 =426+ 9+24-9 =542+8 222+8 =94X5814X58 =388+7+242+7=84+ 2+56 + 2 =66X1556X15 =1340+9530+9 =895+5 445+5 =909X 59+ 909=890- 8-330-8=463+6103+6 =42X31 22X31 =44X28- 14X2

20、8=96X55-16X55=141-2+ 19+2 =88 X 14-8X 14=49X89-19X89=75+5+75+5=62X6-2X6 =56X23-46X23=544+594+5 =82X97-42X97=84X64-44X64=80+3 + 40+3=95 X 19- 15X 19=60X4-10X4 =83 + 6+397+6 =66 X 13-46X 13=84X64-14X64=720+8320+8 =99X4859X48=344+4 24+ 4=37+8 + 283+8 =84X30-64X30=46+2+34 + 2 =91 + 3+149+3 =39X3629X36=2

21、84+774+7=444+3204+3 =66X30-56X30=475+4195+4 =667+8107+8 =573+ 7- 13+ 7 =514X79+ 514=18X648X64=98 + 5+2 + 5 =76 X 13- 16X 13=57 X 17-37X 17 =715- 8-315-8=473X49+ 473=54X5 34X5=211 + 691 + 6 =79X7859X78=641X69+ 641 =17+5 + 433+ 5 =94X61 24X61 =82X61 22X61 =11 + 5+39+5=82X54 42X54=579X59+ 579=33 + 213+

22、2=723X69+ 723=107+ 5+43-5 =15 + 2+5 + 2 =73X2263X22=424+ 8+56-8 =92X1422X14=88X67 8X67=279+ 8+ 121 + 8 =32X5222X52=99 X 41 69X41 =16+7+264+ 7 =553- 7-63- 7 =567+6147+6 =37X44-27X 44 =639+ 9+81 + 9 =390+690+6=94X24-44X 24 =330+ 7+20- 7 =155+435+4=66X77-6X 77=890- 9-80-9 =223+9+137+9 =86X33-36X 33 =34

23、4+ 6 44+ 6 =20X 93-0X93=11X311X31 =241+ 7+389+ 7=77X 71-27X 71 =44X5334X53 =67+9+743+ 9 =79 X 81 19X81 =87X73-27X 73 =810- 7-390- 7=68X 75-38X 75=87X57-57X 57 =192+8+528+8=91X281X28=71X1731X17 =186+ 6+ 354- 6=963X39+ 963=51X511X5=95X29-35X29=114+6+306+6 =95X4 65X4=77X32-37X32=1-1 + 59-1 =88X69- 18X6

24、9 =136-6+ 104+6=75+1 25+1 =82X61-22X61 =187+827+8 =11+ 1 + 29+1 =42X77-32X77 =37X39+37=641 + 6161 + 6=72+432 + 4 =734+5284+5=60+9+390+9=48X63-28X63 =25 + 2+15+2=13+1 + 37+1 =577X69+577=79+3+131 + 3 =335+5+ 65+ 5=41 X 59+41 =617-5- 167+5=132+5+68+5=61 X 23-21X23 =78 + 218+2=3-1 + 27-1 =97X20-7X20=99

25、X 17- 19X 17=71X31-61X31 =1200+8 480+8=537X79+537=335+7+85+7=456+8+ 104+8 =170X59+170=270+5+180+5 =189+9+621 + 9 =80X49-30X49=203+9+247+9 =185+535+5 =89X63- 19X63=31 + 6+509+6=168+6+72+6 =669X29+669=417+3 207+3 =102-9+708-9 =93X86-3X 86=89+7+541 + 7=148+6+212+6 =61 x 69+61 =550+8150+8 =307+6+ 113+6

26、=570X29+570=701 + 8+19+8=235+8+ 165+8 =97X40- 17X40=223+8+97+8=244+7+36+7 =534- 9-84-9 =20X 86-0X86=66X3256X32 =511 + 8111 + 8=66X 55-26X55=66 X 14-6X 14=70 X 16-0X 16=38 X 10- 8X10=73X5223X52 =82X 1362X13=511X9+511 =69+7+1+7 =73X81-13X 81 =50X60 10X60=82 + 5 32+5=64X77-4X 77=22X982X98=46+5+54+5=61X

27、5331X53=92X89 22X89=364- 5-14-5 =57X31 27X31 =90 X 12-80X 12=476+876+8 =81X3041X30=98X31 38X31 =368+4128+4 =84X7234X72=44X9834X98=19+1 + 51+1 =219- 5-69-5 =26+ 2+54 + 2 =48X1618X16 =370- 5-20-5 =30+ 5+420+5=473X39+ 473=402+9+318+9=159+59 + 5 =55X41-15X 41 =50+120+1 =30+ 9+690+9=565X 39+ 565=269- 4-2

28、9-4 =59X 5219X52=354X 79+ 354=289- 3-49-3 =75X 425X42=224X 39+ 224=191 + 211 + 2 =79X 6219X62=53 X 19+53=170+ 7+110- 7=76X 6866X68=84X23-54X 23 =215+ 3+55-3 =77X 50-27X50=39X299X29=54-7+366- 7 =89X73 59X73=90X480X48=73X95- 13X95=705+7 215+7 =142-4+ 138+4 =91 X 43- 1X43=546+7 266+7 =507+957+9 =69X46-

29、 19X46=498+8+142+8 =415-9+ 125+9 =96X89-6X 89=1038+9408+9 =269-6+ 151 + 6 =78X81-68X81 =85+9+635+9=352+8+208+8 =252+552+5 =833+9113+9 =13+7 + 477+7 =93+7+397+7 =26+7+604+7=67X35- 17X35 =210-5+ 190+5=24+7+396+7=79X4 9X4 =102-7+ 108+7=80+ 6+ 40 + 6 =41 X 73-31X73 =582+5232+5=440+8+280+8 =41 X 19- 1X 1

30、9=79X96-49X 96=52X60 2X60=205+ 7+75- 7 =94X90-24X 90=92X25 22X25=281 + 5+ 19+ 5 =94X31 44X31 =66+ 7+214+7=218+4+ 142+4 =18X398X39=68X75 48X75=47+317+3=76X8036X80=59 X 12-19X 12=353- 8-113-8 =82X612X6=61X47 31X47=185- 3-65-3 =87X 11-27X 11 =89X97 29X97=368+8+272+8 =87X6917X 69=45X86 5X86=280+ 8+40-8 =77X73-47X 73=9 + 2+11 + 2 =823- 8-263-8 =30X75 10X75=33+ 2+7 + 2 =108+1 28+1 =126+ 2+34-2 =540X9+540=93X49+93=94X294X29=41X84 21X84=158+5+42+5 =74 + 2