100以内加减法数学题计算(运用口诀)

1、方法 1.两位数加两位数的进位加法：口诀：加 9 要减 1，加 8 要减 2，加 7 要减 3， 加 6 要减 4，加 5 要减 5，加 4 要减 6 ，加 3 要减 7，加 2 要减 8 ，加 1 要减 9 （注：口决中的加几都是说个位上的数） 。方法 2.两位数减两位数的退位减法。口决 : 口诀：减 9 要加 1，减 8 要加 2，减 7 要加3，减 6要加 4，减 5要加5，减4要加6，减 3要加7，减 2要加8，减 1 要加 9。（注：口决中的减几都是说减个位上的数） 。45 - 35 =29 + 24 =48 + 27 =60 - 29 =1 + 35 =31 - 20 =94 -

2、25 =23 + 41 =43 + 1 =68 + 6 =97 - 7 =50 + 23 =25 + 58 =49 + 25 =47 - 6 =5 + 91 =61 - 55 =15 + 77 =60 + 6 =2 + 61 =29 + 71 =12 + 17 =51 - 33 =68 + 20 =94 - 39 =47 - 29 =41 - 11 =86 - 73 =97 - 38 =97 - 34 =11 + 66 =73 + 26 =9 + 57 =94 - 54 =72 + 7 =87- 72=21 + 55 =6226=71 + 25 =7524=20 + 55 =2443=57 -

3、 44 =74- 55=83 - 22 =1 18=46 - 28 =100- 57=66 + 34 =76- 65=29 + 68 =75-14=50 + 20 =10 32=86 - 38 =6232=92- 58=78-15=1187=5016=91 - 73=764=445=100- 56=41 34=3649=2020=4513=97 - 62 =2 + 81 =6524=13 55=44 - 37 =43 + 53 =420=59- 54=69 + 31 =8 + 6 =4540=4- 1 =55 - 54 =87 - 34 =4949=841=73 - 37 =62- 3=254

4、5=367=84 - 50 =79- 68=84- 71 =5446=13 + 84 =1746=80- 66=52-11=13 - 4 =3955=80- 70=33- 9=16 + 71 =74- 33=3325=58- 8=94 - 81 =94- 47=93- 68=12 7=51 - 11 =64-11=31 27=5816=76 - 14 =65- 50=99- 71 =53- 4=90 - 38 =88-10=51 - 3=23-10=43 + 23 =6512=99-14=21 35=62 + 3 =4341 =476=487=63 - 24 =2033=2053=255=56

5、 + 14 =92- 49=75- 6=44- 31 =81 + 1 =1976=923=593=19 + 10 =98- 86=5228=16-14=96 - 41 =652=3747=3041=25 + 10 =801=61 - 48=6712=100 - 89 =84-10=736=65-21=61 + 9 =57-19=33-15=2324=9 + 16 =7513=61 - 25=872=4 + 35 =66- 45=52- 5=954=12 + 2 =21 25=2768=51 - 49=16 + 68 =2734=62- 61 =32-1=46 - 4 =83- 35=90- 8

6、9=92- 83=58 - 33 =71 - 58=16 84=39-13=50 - 42 =903=4555=81 - 2=73 + 15 =68- 52=6815=74- 49=49 + 30 =43- 30=4517=69- 29=43 - 27 =80- 54=91 - 25=837=20 + 75 =79- 56=798=64- 32=99 - 29 =3664=5937=48- 29=19 + 56 =735=454=39- 36=33 + 55 =348=68- 9=891 =3546=59- 36=5715=89- 53=3413=59- 27=94- 34=667=59-13

7、=6719=90- 33=555=99- 22=2016=2745=23-17=98- 63=6417=5011=4342=4931=3755=94- 20=6815=91 2=7811=3424=64- 4=92- 40=1743=95- 75=68-11=86- 26=98- 92=39-15=10 15=54- 46=81 - 9=3012=294=69- 3=1643=54- 5=21 5=74- 70=5813=4536=34-16=79- 68=923=167=95- 83=4521=63- 39=31 28=17 43=11-6=65- 39=4851 =91 - 37=23 +

8、 36 =6212=51 25=78-57=23 + 28 =83- 35=881 =68-44=90 + 9 =27-12=796=71 -17=25 + 75 =3527=41 39=95=10 + 34 =65-17=91 - 20=2238=84 + 3 =57- 46=1412=27-14=57 + 31 =4545=92- 79=2930=79 - 65 =3465=80- 20=83-31 =84 - 38 =72- 4=38-15=74-68=87 - 31 =41 - 21 =55- 39=2770=60 + 22 =3553=2022=2449=50 + 9 =6016=3

9、3- 3=45-43=56 6 =15-11=47- 22=65-23=68- 57=90- 5=69- 36=100- 28=96- 90=81 2=103=3747=15 83=183=72- 30=422=81 14=71 - 69=3330=48-7=4734=5036=72- 6=171=99 - 65=2771 =823=5018=3265=826=89- 51 =6310=19 12=55- 21 =20- 6=59-38=4818=98- 25=857=23-6=45- 35=746=71 - 20=80-6=7424=256=13 41 =68-6=87-16=65- 4=5

10、15=59-5=93-13=761 =1828=8118=46 - 41 =53 + 3 =905=24- 3=58 - 47 =31 + 4 =2954=784=38 - 20 =76- 65=67- 64=55-16=95 - 14 =68- 55=81 - 25=2650=57 + 5 =1542=23- 9=80-61=50 - 24 =3214=61 27=205=68 - 26 =1276=28- 22=88- 8=42 + 49 =69- 30=92- 2=86- 77=67 - 56 =2059=4722=51 27=86 + 12 =55-15=273=13 74=100 -

11、 10 =1949=5828=8018=48 - 16 =98-11=884=93- 33=64 - 42 =31 - 3=90- 5=3453=39 + 28 =92=21 37=7223=14 + 13 =5829=100- 58=40- 33=17 + 59 =5425=2848=7614=28 + 34 =3535=42- 27=83- 62=21 + 37 =606=100- 7=69- 8=66 + 30 =29-14=3745=98- 44=98 - 96 =487=66- 63=659=38 + 38 =80- 33=79- 55=2967=33 + 41 =75- 63=51

12、 - 25=39- 23=84 - 53 =84- 31 =46- 7=8213=82 - 50 =93- 21 =82- 27=93- 38=2 + 45 =2364=8215=7323=16 + 21 =58- 46=420=95- 26=34 - 18 =595=84- 74=5719=5 + 31 =1146=43- 7=399=25 + 73 =5735=69-11=90- 29=75 - 29 =68- 25=5243=89- 42=32 + 49 =59- 35=1442=44- 28=14 + 3 =23=779=810=76 - 57 =2828=5521 =50-19=27

13、 + 69 =4816=2853=18 56=65 - 17 =70- 47=83- 76=79- 32=52 - 1 =2739=19-15=2026=1 + 81 =76- 58=83- 40=34-13=90 + 6 =61 - 3=50-19=2734=51 - 27 =89- 56=89-10=89- 67=12 + 52 =873=569=548=54 + 1 =875=89- 70=96- 43=43 + 32 =248=22-10=92- 63=22 + 62 =91 - 57=44- 32=48- 47=90 - 87 =8711=64- 42=5322=8 + 6 =83-

14、 23=8- 3=16 70=14 + 38 =2572=78-16=46- 29=982=61 29=82- 35=12 58=19 72=1728=831 =99- 45=53 33=64- 61 =71 - 68=75=3218=86- 30=891 =275=83- 82=3450=2418=95- 75=99-41=779=76-12=17 3=78 + 2 =96- 31 =258=7210=20 - 8 =6521 =1740=7026=65 + 25 =9- 5=37- 32=3945=41 + 39 =89- 88=74- 33=2924=79 + 8 =3622=92- 6

15、6=60- 29=91 - 11 =58-12=61 25=31 - 20=42 + 20 =92- 36=80- 2=2341=65 - 59 =3358=100- 44=686=32 + 64 =4813=39- 4=5023=96 - 38 =5713=89- 54=4925=18 - 1 =2453=91 1 =591 =43 + 33 =100- 71 =79- 35=15 77=100 - 64 =33- 30=6534=261 =3 + 49 =14-1=7622=1217=88 - 32 =2529=96- 27=6820=38 + 35 =5741 =75-15=47- 29

16、=54 + 31 =60- 4=95- 52=86- 73=12 54=856=88- 47=97- 34=3617=8- 3=41 - 8=7326=935=5917=35-15=94- 54=2755=98- 71 =84- 76=281 =416=63- 5=88-10=4353=4735=93- 8=56- 1 =86=3520=67=41 2=87- 34=8313=2442=19-17=62- 3=46- 9=67- 30=201=79- 68=56 + 16 =7415=48-25=17 46=33 - 17 =71 - 58=1414=3955=119=80- 3=95-4=6

17、43=257=62- 2=83 5=8310=56 20=646=653=15-3=326=29- 7=352=734=435=8710=39-3=48- 30=81 - 2=608=3910=7610=48 - 9=47- 8=52-4=43- 8=40 - 2=27- 9=32-4=41 - 2=50 - 8=63- 9=37-8=56- 20=75- 9=92- 3=42-7=71 - 6=47- 8=26- 7=52-3=69- 10=80 - 2=36- 9=78-4=65- 8=72 - 2=45- 9=86-8=96- 2=40 - 2=46- 9=43-4=18 - 2=355

18、=852=59-4=7810=646=327=49-5=633=60 - 4=1120=45-3=308=254=36- 5=844=52- 3=88 - 4=760=93-3=18 5=56 20=646=653=15-3=12 6=29- 7=332=340=235=371=29-3=38- 3=18-2=308=431=862=237=474=883=476=26 + 8 =19 6=285=536=23 + 8 =896=755=866=26 + 9 =256=5037=497=61 + 9 =854=91 8=825=73 + 7 =374=783=2760=9 + 25 =356=

19、240=862=16 + 9 =518=173=366=488=358=419=726=398=267=738=618=328=255=137=868=16 9=346=537=14 7=392=274=505=549=10 40=610 =18 50=746=2370=474=883=476=268=19 60=4850=236=838=19 6=755=366=98 4=635=15 4 =295=10 8=999=15 4 =437=303=249=703=406=254=388=398=19 60=9540=825=785=379=7030=842=687=7060=689=607=8

20、79=372=389=71 9=3910=991=889=705=398=7850=5810=303=487=18 7=20 + 5 =64- 32=87- 72=50- 24=88 - 8 =48- 29=6226=68- 26=8677=39- 36=7524=4249=5127=891=2443=67- 56=1374=89- 53=74- 55=8612=8018=667=118=100- 10=93 - 33=555=100- 57=48- 16=3453=23- 17=76- 65=64- 42=7223=4342=75- 14=3928=40- 33=6815=1032=1413

21、=7614=64- 4=6232=1759=83- 62=68- 11=78- 15=2834=69 - 8=1015=5016=2137=98- 44=294=764=6630=65 9=215=100- 56=98- 96=2967=34- 16=3649=3838=39 - 23=95- 83=4513=3341=8213=1743=1355=84- 53=93- 38=91- 37=59- 54=82- 50=7323=78- 57=4- 1 =245=95- 26=68 - 44 =841=1621=5719=71- 17=367=34- 18=399=95 =5446=531=90

22、- 29=2238=52- 11=2573=89- 42=27- 14=33- 9=75- 29=44- 28=2930=58- 8=3249=8 + 10 =83 - 31 =127=14 3=50 - 19 =74 - 68 =5816=76- 57=18 + 56 =27 + 70 =53- 4=2769=79 - 32 =24 + 49 =23-10=65-17=20 + 26 =45 - 43 =21 35=52-1=34 - 13 =65 - 23 =487=1 81 =27 + 34 =100 - 28 =255=906=89 - 67 =37 + 47 =44- 31 =51

23、- 27=5 + 48 =42 + 2 =593=12 52=96 - 43 =48 - 7 =16-14=541=92 - 63 =17 + 1 =3041 =4332=48 - 47 =50 + 18 =6712=2262=53 + 22 =63 + 10 =65- 21 =90- 87=16 + 70 =59 - 38 =2324=86=46 - 29 =23 - 6 =872=14 38=12 + 58 =80 - 6 =954=982=99 - 45 =68 - 6 =51 - 49=19 72=7 + 5 =59 - 5 =32-1=5333=2 + 75 =81 + 18 =92

24、- 83=3218=95 - 75 =24 - 3 =39-13=83- 82=17 + 3 =78 + 4 =81 - 2=99-41=72 + 10 =55 - 16 =74- 49=782=70 + 26 =26 + 50 =69- 29=20- 8=39 + 45 =80 - 61 =837=6525=45 - 35 =2924=727=41 39=48 + 27 =60- 29=21 55=798=1 + 35 =31 - 20 =71 25=91 -11=94 - 25 =23 + 41 =2055=4220=43 + 1 =68 + 6 =57- 44=65-59=97 - 7

25、=50 + 23 =83- 22=3264=25 + 58 =49 + 25 =46- 28=96-38=47 - 6 =5 + 91 =6634=18-1=61 - 55 =15 + 77 =2968=4333=60 + 6 =2 + 61 =5020=100- 64=29 + 71 =12 + 17 =86- 38=349=51 - 33 =68 + 20 =92- 58=88-32=94 - 39 =47 - 29 =1187=3835=41 - 11 =86 - 73 =91 - 73=54 31 =97 - 38 =97 - 34 =445=12 54=11 + 66 =73 + 2

26、6 =41 34=3617=9 + 57 =94 - 54 =2020=935=97 - 62 =2 + 81 =6524=2755=44 - 37 =43 + 53 =420=416=69 + 31 =8 + 6 =4540=4735=55 - 54 =87 - 34 =4949=3520=73 - 37 =62- 3=2545=8313=84 - 50 =79- 68=84- 71 =46-9=13 + 84 =1746=80- 66=5616=13 - 4 =3955=80- 70=33-17=16 + 71 =74- 33=3325=3214=94 - 81 =94- 47=93- 6

27、8=12 76=51 - 11 =64-11=31 27=69-30=76 - 14 =65- 50=99- 71 =2059=90 - 38 =88-10=51 - 3=55-15=43 + 23 =6512=99-14=19 49=62 + 3 =4341 =476=98-11=63 - 24 =2033=2053=31 - 3=56 + 14 =92- 49=75- 6=92=81 + 1 =1976=923=5829=19 + 10 =98- 86=5228=5425=96 - 41 =652=3747=3535=25 + 10 =801=61 - 48=606=100 - 89 =8

28、4-10=736=29-14=61 + 9 =57-19=33-15=487=9 + 16 =7513=61 - 25=80- 33=4 + 35 =66- 45=52- 5=75- 63=12 + 2 =21 25=2768=84- 31 =16 + 68 =2734=62- 61 =93-21=46 - 4 =83- 35=90- 89=2364=58 - 33 =71 - 58=16 84=58- 46=50 - 42 =903=4555=595=73 + 15 =68- 52=6815=1146=49 + 30 =43- 30=4517=5735=43 - 27 =80- 54=91

29、- 25=68- 25=20 + 75 =79- 56=798=59- 35=99 - 29 =3664=5937=23=19 + 56 =735=454=2828=33 + 55 =348=68- 9=4816=35 + 46 =59 - 36 =57 + 15 =70 - 47 =34 + 13 =59 - 27 =94 - 34 =27 + 39 =59 - 13 =67 + 19 =90 - 33 =76- 58=99 - 22 =20 + 16 =27 + 45 =61 - 3=98 - 63 =64 + 17 =50 + 11 =89- 56=49 + 31 =37 + 55 =9

30、4 - 20 =873=91 + 2 =78 + 11 =34 + 24 =875=92 - 40 =17 + 43 =95 - 75 =248=86 - 26 =98 - 92 =39 - 15 =91 - 57=54 - 46 =81 - 9 =30 + 12 =8711=69 - 3 =16 + 43 =54 - 5 =83- 23=74 - 70 =58 + 13 =45 + 36 =2572=79 - 68 =92 + 3 =16 + 7 =61 29=45 + 21 =63 - 39 =31 + 28 =17 28=11 - 6 =65 - 39 =48 + 51 =64- 61

31、=23 + 36 =62 + 12 =51 + 25 =86- 30=23 + 28 =83 - 35 =8 + 81 =3450=90 + 9 =27 - 12 =79 + 6 =779=25 + 75 =35 + 27 =41 + 39 =96-31=10 + 34 =65 - 17 =91 - 20 =6521=84 + 3 =57 - 46 =14 + 12 =9- 5=57 + 31 =45 + 45 =92 - 79 =89- 88=79 - 65 =34 + 65 =80 - 20 =3622=84 - 38 =72 - 4 =38 - 15 =58-12=87 - 31 =41

32、 - 21 =55 - 39 =92- 36=60 + 22 =35 + 53 =20 + 22 =3358=50 + 9 =6016=33 3=4813=56 6 =15 11=47 22=5713=6857=90 5=69 36=2453=96 90=812=103=100 71=1583=183=72 30=33 30=8114=71 69=3330=14 1=4734=5036=72 6=2529=99 65=2771=823=5741=3265=826=89 51=60 4=1912=55 21=20 6=856=4818=98 25=857=8 3 =45 35=746=71 20

33、=5917=7424=25 6=1341=98 71=87 16=65 4=515=63 5=93 13=761=1828=93 8=46 41=533=905=67=58 47=314=2954=2442=38 20=76 65=67 64=67 30=95 14=68 55=81 25=7415=575=1542=23 9=71 58=6127=1442=74 33=64 32=28 22=779=92 66=48 29=92 2=5521=6125=39 36=4722=2853=80 2=891=273=83 76=100 44=89 53=5828=19 15=39 4=667=88

34、 + 4 =83 40=8954=555=90 5 =5019=91 1 =2317=21 + 37 =8910=7935=4342=10058=569=6534=6815=2848=89 70=7622=64 4=42 27=2210=9627=6811=1007=44 32=7515=10 15=3745=64 42=9552=294=66 63=8 3=8847=21 5=79 55=7816=41 8=3416=51 25=82 35=3515=95 83=46 7=831 =8476=17 43=82 27=71 68=8810=91 37=8215=891 =561=78 57=4

35、20=2418=41 2=68 44=84 74=76 12=1917=71 17=43 7=258=201=95=6911=1740=4825=2238=5243=37 32=1414=2714=3347=239=19 32=15 37=79 3=891=781=719=257=3239=446=1185=35 5=2572=75=4229=805=71 4=4839=227=26 14=13 47=233=407=5231=1139=286=7517=2669=582=529=572=6132=3515=30 51=54 31=379=1328=162=28 18=351=6717=19

36、49=68 21=2230=577=40 23=595=4348=196=73 27=579=682=5428=686=75 13=881=1782=11 82=417=541=3156=11 68=386=172=2948=35 49=535=2413=137=23 65=52 33=525=334=43 33=62 29=879=855=569=482=607=479=61 30=791=17=4443=33 27=27 29=1973=3264=49 43=71 23=43 6=6223=115=602=559=919=18 57=37 39=3613=2337=72 23=46 41=

37、174=2217=35 34=155=7821=239=495=15 26=6424=2229=11 37=33 34=6930=813=478=937=808=6219=110=559=478=279=25 39=57 20=112=1269=25 25=45 19=911=792=640=820=708=74=853=588=4057=7024=53 10=15 74=6926=5446=333=262=2725=7312=708=813=4412=925=275=693=8020=1340=64 17=40 2=747=40 6=14 36=118=28 42=813=23 30=64

38、9=3958=859=17 12=589=2035=729=19 25=652=69 4=608=731=43 51=622=699=19 23=291=241=4528=31 11=10 22=3953=2913=40 59=39 38=179=755=23 21=13 19=397=3151=25 15=227=1474=272=82 16=20 41=625=464=17 68=59 36=221=4652=52 25=16 58=857=1740=208=10 55=79 6=2359=72 12=50 27=5536=2276=891=16 43=618=3355=46 17=41

39、35=139=5326=786=42 26=193=1716=64 9=983=777=5933=97 6=71 20=2542=2448=64 4=80 19=209=422=64 6=17 22=1764=229=715=505=6511=4351=288=46 27=1219=1953=10 77=11 27=2613=4321=11 81=532=3232=614=732=18 76=926=555=29 28=467=1456=1928=73 19=26 73=3832=127=235=270=507=5329=579=214=5340=5336=316=35 39=1618=165

40、4=47 47=134=111=4231=50 46=732=492=1557=397=25 56=3315=2563=388=33 51=176=7412=43 53=82 11=1278=1366=49 40=216=2049=3052=34 37=129=3063=3944=396=29 55=3016=4845=54 20=668=73=799=487=371=4325=5419=146=28 15=1762=576=265=44 15=7126=384=53 16=48 18=1729=595=20 32=723=4117=7614=23 67=146=5050=924=11 60=43 32=3828=1044=480=21 45=4432=6430=125=38 34=876=524=435=53 26=1719=374=62 32=830=7024=247=567=20 55=2168=5812=35 44=29 33=366=880=379=39 59=589=5938=878=990=203=297=366=845=1059=6221=40 30=426=1426=4818=644=311=1540=199=2