三年级下册每日口算练习题

1、人教版三年级下册每日口算题2020年143+472=208 + 2 =59X49=73X98=955+581 =525 + 5 =75 X 17=9X 548=405-336=981+9 =17X42=620X5 =905+958=327 + 3 =99 X 86=5X487=349+769=324 + 3 =36 X 10=1 X 500=647+657=428 + 4 =53X47=5X 139=196+609=728 + 7 =65X48=1 X 295=695+579=621+3 =80X 20=885X8 =383+907=804 + 4 =91 X 84=9X 548=265+87

2、1 =636 + 6 =51 X 11 =9X 102=172-108=804 + 4 =60 X 83=4X 723=612+756=416 + 4 =59 X 98=856X5 =647+657=832 + 4 =16X47=938X4 =301 + 331 =404 + 2 =64X29=935X7 =186+682=432 + 4 =74 X 31 =125X4 =588+768=540 + 5 =49 X 30=106X1 =711 + 781 =309 + 3 =25X66=707X3 =614+651 =654 + 6 =66X21 =748X3 =929+178=57X63=9

3、2 X 92=6X 742=446+585=94X33=86 X 98=8X 881 =900-131 =43X53=54 X 55=482X4 =202+2 =80X41 =50X 68=6X 537=545+5 =57X68=44 X 33=5+9-6=206+2 =94X53=59 X 98=6+6+2=4+2-3=593+551 =525 + 5 =36X40=8X 8-52 =160+826=654 + 6 =45X42 =6X410=581 + 347=208 + 2 =72X22 =8+1+6=485-324=412 + 4 =32X89=9+810=159-116=432 +

4、4 =86X62 =3+7X7=741-373=202 + 2 =83X42 =8X 5X4 =635-104=525 + 5 =52X 14=8X 5X4 =783-234=728 + 7 =44 X 15=5+3-4=980-324=545 + 5 =70X58=1606-1270 =610+643=324 + 3 =17X32 =3186+2940 =396+500=416 + 4 =97X57 =2527+5294 =122-118=981+9 =39X40=1864+2059 =268-125=408 + 4 =75X50=4773-1128 =483-313=621+3 =14X2

5、8=8984-2731 =504-419=404 + 2 =65X29=9039-6384 =262-106=615 + 3 =42X 14=9575-6446 =307 + 600=540 + 5 =52X33=3505+5193 =257-235=309 + 3 =52X92 =7465+3852 =581 + 347=83X42=15X69=7767-6035 =395+338=28X 65=21 X33=6060-1948 =921 + 813=66 X 80=94X56=6682+9803 =327 + 3 =63X40=72X61 =5426+6805 =210 + 2 =17X4

6、9=11 X22 =9881 + 3822 =636 + 6 =54 X 32=89X51 =-1 -人教版三年级下册每日口算题2020 年337 + 890 =444 + 310 =664-327 =192-145 =420-288 =586-189 =597-364 =960 + 552 =790-590 =960 + 552 =150 + 463 =628 + 797 =385-228 =554-173 =194-131 =163 + 496 =811+220 =236-202 =724-309 =899-174 =441+687 =416 + 2 =602 + 2 =848 + 8 =

7、816 + 8 =856 + 8 =812 + 4 =218 + 2 =214 + 2 =735 + 7 =721+7 =404 + 4 =864 + 8 =410 + 2 =624 + 3 =520 + 5 =945 + 9 =414 + 2 =963 + 9 =303 + 3 =812 + 4 =68X34=52X30=97X66=45X86=48 X 13=39X83=612X5 =2X 395=377X8 =124X7 =844X3 =3X 701 =305X3 =4X 716=683X7 =6X447=9X 756=454X9 =4X 716=9X 154=496X3 =1X 801

8、 =445X4 =8X 927=6X 563=931X6 =442X4 =3X 8X2 =5+4+ 4 =5X 8-31 =6 一 4 一 2 =6X 9+8 =8一 6一 2 =8+2+9=8+3-8=5X 8-31 =7X4+1=83 X 2 X 1 =23X3X9=63X4X9=83 X 2 X 1 =30X3X6=61 X2X3=82X6X4=96X6X5=90X4X3=57X5X6=22X4X6=9080-8939 =1273+6168 =4677+1099 =6X 9+2 =2820+6080 =714 + 7 =-3 -45X86=人教版三年级下册每日口算题2020 年42X42

9、 =765X 1 =2X9 16 =89X76=186X7 =76+6=96X45=5X 575=3+2+8=15X23=9X 867=8X9X4=75X79=1 X 677=3X2+6=70X93=2X 567=4+7+4=50X45=724X9 =9+6-7=20X73=822X8 =6X38=91X75=285X6 =3X9 22 =97X39=9X 584=76+6=96X62 =3X 762=5+6X7=43X61 =1 X 352=6+1X7=66X58=3X 974=8X6 14 =47X21 =6X 577=8+3+9=52X98=6X 345=26X 8X2 =51X35=2

10、94X7 =98X6X1 =74X65=285X6 =31X2X3 =31X 16=3+2X4=83X 5X5 =30X96=7+5-8=85X 9X5 =25X88=8+4+9=65X4X8 =535X4 =7X 7+9 =79X 7X3 =4X469=6X 9X5=52X 7X8 =863X7 =4X 8-11 =23X4X9 =3X648=4X4+1=65X6X7 =22X7X6 =10X9X1 =65X6X7 =89X9X2 =69X3X9=19X6X2 =37X3X6=63X7X8 =73X2X2 =53X7X8 =59X2X3=4677+7616 =1948+5876 =1811

11、+ 3545 =5524-4892 =8616+9614 =3679-1568 =5276-3072 =5524-4892 =8966+6088 =5988+3902 =4991 + 2299 =2126+6285 =6213-1436 =-5 -人教版三年级下册每日口算题2020年6909+9542 =316+559=648 + 6 =68X57 =3884-1271 =327 + 679=954 + 9 =67X51 =3922+1308 =186+608=35 X 85=44X86=1518+6861 =316+559=16X 72=24X81 =6706-5519 =562 + 235

12、=54X46=38X85=8137-7038 =604 + 2 =83 X 81 =86X60=4504-3600 =321+3 =21X51 =80 X 14=7045+8225 =204 + 2 =10X24=53X25=648-154=614 + 2 =89 X 53=68X30=624-490=707 + 7 =16X 75=892X2 =889+416=606 + 6 =24 X 11 =261 X4 =945-708=406 + 2 =21 X 95=1 X 594=842+484=612 + 2 =44 X 11 =7X 566=237+930=630 + 6 =46X29=2X

13、413=780+462=318 + 3 =83X 60=409X3 =438+108=618 + 2 =45 X 16=5X414=196+172=824 + 4 =37 X 30=8X 539=575+845=608 + 2 =84X28=257X8 =727+883=808 + 8 =83X 23=281 X6 =200-129=836 + 4 =75 X 87=5X 292=151-105=742 + 7 =48 X 90=1 X 802=855-731 =624 + 6 =86X60=193X1 =418-201 =824 + 4 =93 X 94=8X 128=959+647=832

14、 + 8 =89 X 87=107X8 =-9 -366X6 =524X3 =651 X 1 =968X9 =257X8 =7X 871 =6+3X8=5+ 5+ 9 =9X 7-50=9+9X3=6X 5+5 =6X2+8=6X6X8=5+6X4=2+4+1=6X 8-39=6X6X5=6X 8-46=6X6X8=4X 9+2 =3X6+2=9+4+2=5-4+1=6+3X3=6+5-8=7+3+9=7+3X2=62X6X9=75X8X3=20X8X5=71 X5X2 =56X2X4=76X2X7 =72X5X9 =34X9X9 =30X2X7 =97X2X5 =80X5X7 =27X7X6

15、 =71 X5X2 =90X7X6 =42X3X3 =41 X2X2 =27X7X4 =68X4X7 =69X7X4 =21 X6X7 =79X8X6 =8514-5265 =6573 + 7135 =4248 + 3610 =5000-2242 =1064-1006 =7215 + 7955 =1494 + 4169 =2329-1270 =4039 + 6174 =1686-1287 =7962-6672 =9680 + 4344 =8088 + 4117 =8023-5401 =8088 + 4117 =8439-7770 =5999-2138 =3774 + 3806 =8853-15

16、13 =4568-3352 =7640-3298 =169 + 232 =913 + 751 =226 + 747 =366-115 =619-439 =829-785 =283-156 =381-225 =366-115 =546 + 417 =667-353 =928-498 =946 + 988 =680+342=981+665 =562 + 764 =946 932 =948 + 887 =429 + 886 =686 + 748 =130 + 968 =816 + 4 =602 + 2 =218 + 2 =315 + 3 =927 + 9 =714 + 7 =人教版三年级下册每日口算

17、题2020年820+4 =721 + 7 =735+7 =816+8 =303+3 =714+7 =414+2 =945+9 =410+2 =603+3 =214+2 =416+2 =618+6 =606+3 =624+3 =87X92 =62X61 =29X31 =30X46=52X73=78X68=91X46=59 X 13=27X85=59 X 13=45X55=98X43=80X34=64X98=48X87 =31 X97 =53X20=83X95=58X49=53X35=374X6 =8X 277=1 X 326=384X7 =2X 185=9X 121 =2X 624=787X2

18、=6X 976=426X3 =6X433=9X292=3X224=5X421 =928X6 =727X8 =808X8 =9X501 =2X826=2X935=6 一 4 一 2 =5X8 31 =3+6+6=7X4+1=6X9+2=5X8 31 =7+5-3=8 一 6 一 2 =3+4-5=6X9+8=3X4 11 =8+2+9=6X6+4=8+3-8=8X3+4=-7 -7X 8X5 =10 + 2 3 =7X4X3=5+4+4=3X 8X2 =8X4+2=23X2X1 =76X6X4 =36X8X7 =12X5X8=76X5X8=64X9X3=45X2X9=25X6X2 =25X6X2

19、 =72X4X4 =12X8X7 =40X6X2 =65 X 8 X 1 =90X6X2 =82X5X8=18X5X5=93X3X4=92 X 17 =808X8 =35X7X3=人教版三年级下册每日口算题2020 年-13 -60X3X4 =89X5X7 =61X2X9=7341-1233 =8319+8165 =7711-4020 =2281-1097 =3678-1568 =7328+5094 =4268+8743 =7267+9065 =5842-2665 =9435-1479 =1781-1622 =8319+8165 =8294+4073 =1580-1508 =2730-1011

20、 =9597-7275 =3629+3926 =7276+8918 =2132+2963 =3326-1048 =2280+3305 =681-496=680-173=657+806=112+912=271-147=351-166=425+301 = 172+798=567-247= 423-249=396+891 = 886-643=104+141 =941-177=364-168= 176-155=497-250= 662-502=624-121 =869+231 = 172+798=404 + 4 =721+7 =820 + 4 =856 + 8 =315 + 3 =214 + 2 =4

21、16 + 2 =735 + 7 =606 + 3 =945 + 9 =414 + 2 =218 + 2 =927 + 9 =410 + 2 =624 + 3 =714 + 7 =603 + 3 =816 + 8 =856 + 8 =602 + 2 =303 + 3 =10X 76=56 X 88=87 X 50=45 X 31 =86X66=75 X 36=46X76=64X75=41 X27 =46X76=17X33=70X88=99X69=65X37 =90X48=30 X 19=92X 18=93X58=60X71 =72X74=50X26=259X7 =7X 921 =2X 807=5

22、X 388=289X1 =423X3 =1 X 175=846X3 =661 X7 =人教版三年级下册每日口算题2020 年742X3 =224X 1 =622X5 =322X5 =4X258=6X 132=846X3 =826X5 =675X5 =229X 1 =9X 854=568X3 =6X 9+2 =7+5-3=8X 3+4 =5X 8-31 =7X4+1=3+6+6=8一 6一 2 =5+ 4+ 4 =6X6+4=10+23 =7X4X3=8+2+9=3X 8X2 =8+3-8=6X 9+8 =7X 8X5=6 一 4 一 2 =8X4+2=5X 8-31 =3+4-5=32X3X4

23、 =54X8X9 =66X4X3 =30X4X3 =83X7X6 =92X4X7 =32X2X3 =11 X6X5=39X6X6=66X4X3=29X4X5=36X8X2 =38X9X5=73X3X7 =12X 9X9 =55X 7X2 =92X4X8 =27X 5X2 =18X 8X5 =79X 3X7 =5009-3121 =5757+1278 =4141+9268 =2413-1458 =2725-2039 =8227 + 8608 =4562+1240 =3812+1029 =1323 + 7690 =9376-7970 =5610 + 7417 =8749-2631 =4141+92

24、68 =2167 + 6629 =8353 + 9278 =6283-2574 =5396 + 6399 =4921+3477 =-9 -1587-1104 =8502+5675 =2999+6822 =214 + 2 =218 + 2 =315 + 3 =416 + 2 =602 + 2 =820 + 4 =856 + 8 =303 + 3 =404 + 4 =410 + 2 =414 + 2 =624 + 3 =864 + 8 =945 + 9 =927 + 9 =721+7 =864 + 8 =816 + 8 =714 + 7 =963 + 9 =3X411 =89X8X8=735 +

25、7 =人教版三年级下册每日口算题2020年56X32 =55X97 =36X50=13X69=24X38=83X83=91X34=62X37 =11X28=81X75=51X97 =83 X 12 =71X90=11X37 =73X78=13X69=25X77 =47X93=39 X 14=77X46=17X20=911X3 =5X 150=514X9 =510X4 =194X6 =1 X 395=305X6 =551 X 1 =536X2 =863X 1 =6X 224=485X4 =2X 952=379X3 =1 X 929=427X2 =3X 535=517X2 =911 X3 =8X

26、752=4X 714=9X 8-15=2+2+6=2+4X4=6+9+8=3+5+5=6X49=5X89=3X5 10 =7+1X7=9X5 30 =7X64=6+ 7 + 6 =3X5+7=6X8 40 =8+4-5=9+2+2=7+5X2=9X9 78 =9-7+3=5X89=7-6+1=46X 5X8 =48X 5X7 =26X6X3 =11 x 3X 1 =47x 3X5 =18X6X2 =76X 7X2 =29X 5X3 =84X9X3=64X5X9=39X7X4 =16X2X7 =93X9X8=47X6X4 =96X4X6 =89X3X7 =68X7X9 =88X8X5=61 X6

27、X5=89X3X7 =4555-1500 =6748+2598 =8187-5534 =4746-2004 =1870+7276 =9122-3286 =1787+7349 =7226+2992 =4298-3412 =2878+3875 =1888-1493 =1593+1353 =49X6X8 =-17 -人教版三年级下册每日口算题2020 年360+550=832 + 8 =27X54=4251-3704 =4454+7153 =6895-4110 =4454+7153 =2804+9537 =6384+8688 =2267-1405 =2137-1821 =2856-1580 =538

28、+251 =618+101 =287-147=571-284=785+551 =203+758=203+758=875+735=357+574=125+108=501-485=187+744=900-496=460-217=235-169=387-152=738 + 492=724-573=255-188=706+180=705+327=226+885=505-257=758 + 496=768-323=571+424=909+855=704+125=926+946=969-746=604 + 2 =954 + 9 =321+3 =416 + 4 =318 + 3 =808 + 8 =707

29、+ 7 =406 + 2 =204 + 2 =408 + 4 =210 + 2 =612 + 2 =824 + 4 =327 + 3 =621+3 =618 + 2 =630 + 6 =412 + 4 =202 + 2 =432 + 4 =836 + 4 =614 + 2 =202 + 2 =606 + 6 =648 + 6 =615 + 3 =728 + 7 =608 + 2 =742 + 7 =624 + 6 =24X21 =-11 -56X49=85 X 11 =24X21 =36X94=84X51 =22X66=74X86=60X54=77X58=63X37 =53X85=51 X74

30、=63X79=82X60=15X70=13X41 =43X50=95X72 =82X50=72X83=57X27 =55X75=92X50=人教版三年级下册每日口算题2020年67X54=24X61 =93X57 =81X63=36X58=43X41 =968X8 =525X4 =1 X 793=716X2 =3X 295=500X4 =7X 785=6X244=1X 914=362X9 =2X 961 =651X6 =8X 196=4X 897=959X7 =6X436=3X 747=9X 251 =246X7 =569X3 =5X 787=642X5 =7X 137=1 X 547=166

31、X7 =230X7 =259X5 =6X436=127X2 =2X 886=3X 3-7 =5X 3-8 =8+9+3=9+5-3=4+3+1=4+4X6=2+3+1=7X 9-33=7X 2-4 =3X 2X6=5+1X5=3X3+1=7X4 13 =82X3=3+8-7=9+4+4=3X9 26 =5X9 26 =3X3+1=2+8-3=9+3-9=9-4+3=2X59=6X9X2=8+3-9=7X7X2=6+5-9=9+7-4=2X4+2=8X9 23 =20X4X5 =61X9X2 =52X6X1 =34X3X1 =-12 -90 x 2 x 1 = 67X4X3= 86X6X5=49

32、X8X9=56X8X5=56X8X8=39X4X4=97X3X2 =91 X2X9= 29X5X6=60X4X6=88X3X2 =55X4X6=20X4X5=52X9X5=76 x 9 x 1 = 13X8X1 =72X7X4 =39 X 2 X 1 =64X4X3 =65X6X9 =27X4X2 =45 X 8 X 1 = 70X3X1 =9X204=6X 7-20=人教版三年级下册每日口算题2020年-23 -63X3X4 =21X5X3=89X8X9=4426+5492 =3880-3326 =4063+8955 =7108+5350 =1132-1069 =3821 + 4375 =1

33、434-1059 =5382-1424 =8261+1988 =3821 + 4375 =4925+3735 =6721 + 6358 =9540-1165 =8319+6294 =8418+2782 =6332-1902 =7000+8682 =2116-1239 =5274+1510 =8571 + 7628 =4052+8947 =5055-1731 =957 + 605 =321+3 =4773-1142 =737 + 270 =406 + 2 =6048-2596 =390 + 435 =742 + 7 =5139-3665 =555-446 =412 + 4 =2635-1092

34、=918-318 =614 + 2 =9624+1726 =901 + 115 =954 + 9 =4251-2647 =400+179 =604 + 2 =5662+7695 =221+798 =621+3 =4262-2233 =372-126 =615 + 3 =9210+2618 =347-127 =432 + 4 =954-505=626-500 =808 + 8 =667+561 =198 + 377 =648 + 6 =757-635=984 + 261 =618 + 2 =741-525=328 + 231 =210 + 2 =347-217=602 + 459 =836 +

35、4 =755-153=467 + 675 =824 + 4 =627-223=213 + 738 =707 + 7 =269-173=306 + 3 =318 + 3 =364+265=606 + 6 =728 + 7 =894-630=608 + 2 =204 + 2 =325-324=408 + 4 =612 + 2 =325-324=416 + 4 =832 + 8 =229-112=624 + 6 =327 + 3 =594-401 =630 + 6 =432 + 4 =10 + 2 3 =人教版三年级下册每日口算题2020 年13X30=83X96=4X481 =47X88=37X2

36、8=4X602=89X85=30X22 =540X8 =13X43=11 X67 =7X218=53X91 =94X96=5X971 =62X28=64X58=285X9 =31X66=80X82 =410X3 =36X77 =1 X 384=7X 131 =31X 18=561 X 5 =4X872=48 X 15=5X 934=509X9 =86X57 =8X430=828X9 =52X80=982X5 =7X570=90X92 =246X3 =292X5 =48 X 15=892X9 =509X4 =98 X 18=5X 125=2X8+6=41X62 =714X6 =3+6+6=42X

37、80=1 X 384=6X9+2=33 X 14=353X2 =9-7+8=86X85=8X 318=4+22=81X44=1 X 727=6X9+8=20X59=360X4 =7X4+1=13X72 =510X 1 =8+2+9=66X91 =947X4 =4X9X2=34 X 15=581 X 9 =6+2X7=7+5+1=7X 8X5 =10 + 2 + 9 =7X4X3=9X 8+9 =3+4-5=3X 2-2 =3X 8X2 =3X411 =8+3-8=5+4+ 4 =8X 3+4 =5X 8-31 =8一 6一 2 =6 一 4 一 2 =8+2X3=5X 8-31 =7+5-3=

38、6X 6+4 =8X4+2=12X7X5 =51 X8X4 =81 X4X2 =-25 -人教版三年级下册每日口算题2020年17X9X8 =27X6X1 =20X3X2 =17X2X3=84X6X9=83X2X2 =43X8X9=83X4X2 =14X4X6 =45X4X5 =73X9X3 =50X5X 1 =50X5X6=73X9X3=58X2X5=70X9X3=97X5X6=85X6X2 =90X8X4=52X5X2 =71X3X8=29X2X3=90X9X8=63X3X2 =23X7X7 =93X7X5=74X3X4 =69X3X3=6967-5980 =6738-3154 =1862

39、-1786 =1574 + 4722 =5280-1058 =4325-2616 =3210+8949 =3791-1503 =8551 + 8433 =3791-1503 =5705-2995 =2496-2265 =8398+1823 =1341-1279 =5891 + 3351 =2398+8745 =6219+1092 =1264+9016 =8331+4296 =7287+3480 =5625 + 2669 =3482-3410 =4782 + 2347 =3445 + 2868 =7151-1294 =6272 + 9574 =4090-3764 =4125-2459 =1332

40、-1311 =7769 + 2766 =3886-3301 =907-555 =647 + 939 =845 + 784 =254-162 =671-595 =532 + 676 =534-287 =763-262 =677 + 467 =685 + 394 =907-555 =847 + 649 =320-131 =682-149 =565 + 680 =809-514 =438 + 303 =556 + 371 =176 + 608 =533-397 =419 + 691 =519-135 =976+195 =459 + 622 =987-715 =509 + 441 =609 + 298

41、 =682-291 =738-194 =608-529 =206 + 2 =936 + 9 =804 + 4 =312 + 3 =872 + 8 =324 + 3 =700-506 =-29 -618+3 =303+3 =616+2 =428+4 =606+3 =208+2 =642 + 6 =820+4 =618+6 =505+5 =610+2 =418+2 =808+4 =603+3 =612+6 =612+3 =927+9 =525+5 =756+7 =840+8 =609+3 =303+3 =816+4 =832 + 4 =315 + 3 =17X 11 =36X81 =45X67 =

42、48X23=61 X45=60X23=98X69=46X24=77X95=88 X 17 =58X76=48X56=73X93=36X81 =21 X81 =96 X 11 =95X54=79 X 15=24X41 =48X66=38X45=41 X48=56X67 =15X22=65 X 81 =57X47=15X 67=53X 29=21 X 74=65X63=71 X 26=5X738=510X3 =4X958=6X402=851 X1 =938X7 =777X8 =802X3 =3X684=843X2 =634X2 =497X2 =307X9 =826X6 =939X9 =520X2

43、=5X 119=339X5 =4X 373=6X 333=6X402=510X9 =6X 643=395X6 =103X3 =3X 191 =5X 130=203X1 =837X6 =559X2 =8+2+9=7+5+1=7X4+1=3X 8X2 =6X 9+2 =3+4-5=8一 6一 2 =4+22=4X 9X2 =4X397=人教版三年级下册每日口算题2020年5X 8-31 =6一 4 一 2 =8+3-8=10+23 =6X 9+8 =8+2X3=7X4X3=9-7+8=6X6+4=2X 8+6 =9X 8+9 =7X 8X5 =5+ 4+ 4 =3X411 =3X22=10+2+9

44、 =8X 3+4 =7+5-3=3+6+6=8X4+2=6+2X7=5X 8-31 =36X9X8 =43X9X8= 86X8X7 = 66X2X4= 58X5X7 = 23X6X2 = 78X3X6= 54X5X6= 31 X9X1 =81 X9X2 = 29X6X2 =60X4X7 = 41 X8X7 =20X7X5 = 66X9X8 = 65X2X6= 30X2X3= 19X8X5= 97 x 2 x 1 = 76X3X9= 60X2X9= 82 x 2 x 1 = 32X6X6= 78X6X7 = 43X5X8 =92X6X1 =72X4X7 =28X 5X2 =15X 7X9 =40

45、X 3X2 =1862-1244 =6841+9413 =3919+1890 =5755 + 5825 =3119-1686 =5134-2200 =4832 + 8363 =4390-4141 =2895-1153 =5160-3128 =1154-1018 =1885-1029 =9120-4640 =4390-4141 =4537 + 6332 =8963-7870 =2472-2448 =2501+4663 =9728-1683 =-17 -9210+6228 =1622-1136 =3746-1997 =8141 + 1107 =4724+6007 =3142-1637 =7295 + 4208 =1195+3027 =1894-1868 =3127-1876 =6136-6101 =4264-3592 =390-238 =753 + 812 =943+199 =909 + 479 =579-379 =728-153 =223 + 783 =561+277 =390-238 =729-155 =931+900 =601+252 =19X8X5=人教版三年级下册每日口算题2020年-37-775+719=927 + 9 =936