20以内连减1000道练习题

1、20 以内连减20 - 9 - 8 =110 2 0 =18 9 1 =11 0 3 =19 2 6 =| 1894=i 19 3 10 =19 14 5 =1073=19 6 9 =_ _ii1170=3 0 0 =14 2 10 =20182=：18 1 17 =1114=8 5 0 =16 2 4 =1339=14 0 10 =15311=17 3 5 =20 1 11 =1920=16 13 1 =i1758=18 1 17 =18 5 3 =1892=13 4 8 =1353=8 0 5 =17 6 7 =17133=15 0 3 =17012=17 0 6 =15 11 4 =20

2、95= 117 1 6=i1767= -. .14 11 2 =19 2 16 =20313=i13 1 10 =852=19 10 9 =10 3 0 =1924=14 2 2 =1-. 一2073=15 7 8 =19 12 7 =503=17 7 0 =2084=18 11 4 =18 8 5 =16115=20 1 18 =|.1467=14 4 0 =- - -15 11 3 =1391=11 4 4 =112010=115 1 11 =_ _12 3 7 =【11 3 6 =120 3 2 =:ii20 7 9 =i17 5 12 =i16151=i15 1 9 =16151=9

3、2 0 =19 1 8 =15110=18 8 3 =211= 110 0 0 =13 0 10 =2043=16 10 2 =1457=18 4 10 =15 3 4 =19311=4 0 2 =1871=15 2 0 =-j10 4 5 =1721=i19 6 10 =2067=19 1 2 =19 1 17 =1708=11 1 5 =816=20 1 17 =15 2 3 =2040=14 - 6 - 0 =700=11 6 3 =18 12 3 =1647=14 11 2 =17101=10 6 3 =16 1 3 =1403=13 9 2=i116106=17 0 3 =15 5

4、1 =411=20 5 8 =17130=18 1 16 =12 2 2 =16016=20 9 1 =:20171=16 13 0 =17 3 8 =2038=17 2 9 =19106=113 0 6 =817=700=20 4 12 =831=19 9 5 =19 6 0 =16140=17 2 12 =1615=.20 7 12 =.19 10 5 =621= 1 .!13 5 2=.904=20 9 9 =14 9 2 =833=3 0 1 =.733=14 2 1 =18 10 1 =750=18 2 9 =1432=8 5 2 =13 8 5 =1128=17 3 0 =L-.I

5、10 - 3 - 3 =12 - 3 - 5 =j16 6 2 =16 - 0 - 9 =-10 - 0 - -6 =15 - 2 - 2 =11 - 5 - 2 =訂 6 4 8 =13 - 3 - 4 =8 - 3 -1 =_i16 1 3 =20 - 7 - 0 =|13 - 2 - 1 =20 - 0 - 1 =15 - 1 - 13 =19 1 5 =18 - 7 - 0 =|18 - 2 - 11 =_2 - 1 - 0 =.12 - 1 - -4 =3 - 1 - 0 =14 9 1 =16 - 9 - 5 =.120 - 13 - 7 =- - 111 - 0 - 5 =13

6、- 0 - 11 =20 - 0 - 19 =17 - 0 - 2 =18 - 9 - 3 =17 - 13 - 1 =12 10 1 =.20 - 5 - 7 =|17 - 8 - 8 =11 - 0 - 10 =13 - 1 - 8 =_i17 1 12 =20 - 5 - 4 =|17 - 12 -2 =17 - 4 - 6 =14 - 4 - -2 =420 - 2 - 3 =20 - 12 - 8 =|15 - 0 - 2 =17 - 7 - 4 =19 - 1 - 14 =17 - 10 - 4 =18 - 14 - 2 =M4-13-0=15 - 9 - 1 =19 - 5 -

7、-0 =18 - 4 - 9 =i18 0 0 =20 - 5 - 14 =17 4 7 =11 - 2 - 7 =20 - 3 - 7 =118 - 5 - 12 =20 - 12 -0 =18 - 6 - 3 =20 - 2 - 15 =|8 2 3 =19 - 9 - 10 =!18 - 1 - 4 =.-112 4 7 =8 - 2 - 0 =51L -13 - 8 - 5 =13 - 7 - 5 =初-7- 1 =16 - 1 - 0 =16 - 0 - 10 =j19 - 0 - 11 =19 - 3 - 8 =；13 9 1 =16 - 1 - 2 =9 - 1 -6 =18 -

8、 8 - 3 =17 - 2 - 3 =8 4 5 =13 - 11 - 1 =13 - 10 - 2 =17 - 12 - 3 =18 - 4 - 12 =17 - 12 -4 =20 - 0 - 18 =13 - 3 - 4 =14 3 3 =9 2 7 =M6 - 5 - 7 =M9 - 1 - 8 =11 2-2 = _ _13 - 3 - 8 =6 0 4 =|18 - 0 - 7 =13 - 1 - 10 =8 - 3 -0 =13 - 2 - 7 =18 - 11 - 7 =”4 - 5 - 5 =18 - 3 - 13 =18 - 3 - 9 =20 3 6 =15 - 8 -

9、 4 =：16 5 9 =17 0 17 =20 - 8 - 10 =16 - 0 - 8 =12 2 0 =20 - 7 - 0 =.18 - 9 - 1 =111- 5 -3 =20 - 16 - 1 =11 9 2 =i19 0 0 =14 1 1 =8 - 0 -2 =15 - 11 - 2 =i|10 - 5 - 2 =：18 5 6 =19 - 5 - 9 =12 - 0 - -11 =10 - 3 - 1 =3 0 2 =19 - 3 - 16 =16 - 7 - 0 =19 - 1 - 9 =-414 10 2 =19 17 0 =：17 0 4 =- -5 0 0 =16 -

10、 3 - 4 =_13 - 12 - 1 =13 - 1 - 5 =【18 - 0 - 11 =17 - 2 - 9 =13 - 8 - 4 =.L_-i-117 - 7 - 0 =13 - 7 - 0 =M2 - 7 - 2 =12 - 1 - 3 =9 - 1 -2 =9 1 2 =6 5 0 =i17 3 1 =20 - 6 - 13 =16 1-11 =15 1 0 =11 4 4 =M8 - 7 - 11 =:12 0 2 = 12 2-9 =_i11 0 2 =19 3 0 =16 - 1 - 7 =19 4 9 =19 - 2 - 4 =19 3 9 =14 - 0 - 5 =：

11、17 0 0 =11 3 1 =11 6-5 =15 1 4 =20 - 11 - 6 =討 6 - 6 - 2 =20 - 10 - 6 =14 - 11 1 =-i12 - 3 - 5 =18 - 11 - 4 =口 8 4 10=.19 - 11 - 7 =10 - 7 - 3 =.Li - . f18-2-11=19-15-1=15-3-9=18-10-6=19-7-10=7-2-5=16-5-3=13-0-2=12-1-7=16-8-2=1217=14-3-5=19-16-1=19-5-13=17-4-13=8-4-1=18-10-1=16-8-3=20-13-3=18-1-17=1

12、5-2-5=1546=13-7-1=11-6-2=18-7-4=20512=13-0-13=8-0-8=15-8-4=19-3-7=18410=13-12-0=8-3-3=13-7-6=17-0-4=19-0-3=11-4-3=16-15-0=20-3-8=18-1-0=19-0-3=20-1-2=15-1-12=1164=7-4-2=14-7-6=20-15-0=16-5-7=15-4-7=14-0-10=18-3-8=1162=19415=1977=11-5-1=20-12-7=119-3-11=20-2-6=17-13-2=14-5-9=|15-13-1=16-13-0=18-2-5=2

13、0-6-11=910=1421=20-13-0=17-5-0=1054=862=16-6-4=18-0-1=1445=18411=19-2-10=20-2-9=20-11-7=614=15-4-10=7-2-3=14-8-3=13-8-5=1710=10-6-0=16-0-15=1884=1995=19-12-3=1941=12-3-7=18-8-9=20-12-8=832=19-4-4=10-5-0=19-7-1=19103=19-5-12=15-2-3=15-4-6=1519=1329=19145=1461=20117=16-2-2=1894=15-0-2=20-1-10=18-3-4=2

14、0-5-6=816=19-10-6=18-1-13=1902=1043=i8-5-3=16-1-10=2064=13-6-1=10-1-5=14-4-8=18-0-5=18-2-16=16-7-0=1840=. .*-.!17104=15-10-2=1467=16-2-14=7-0-7=19-12-0=18-5-4=18-10-0=1013=19-14-1=15-1-5=19-8-9=18-2-3=16211=20134=i935=2043=1472=1100=17-1-16=- - -J- - -1046=； 19712=! 1528=1338=18-16-0=19611=1999=1248

15、=17-5-4=19-14-0=13-2-4=17011=1722=15-9-1=16-4-5=1645=16-7-9=1034=19-1-10=11-10-0=20-3-2=19-0-3=13-7-5=13-8-2=18104 =17410=19143=12097=20114=1830=941=15131=1805=1663=1694=1071=18133=1857=18810=1681= |1201=1642=1417=19014=2075=15130=2030=1425=1991=M6412=!1553=911=930=1784=1403=j960=1514=16102=1886=197

16、3=1839=1920=1656=1939=953=431=16212=1677=2004=1265=18116=2040=1238=1845=1415=1676=19316=1242=808=1 11729=j17013=1334=17114=II15111=1679=1014=811=1714=15120=1652=|13102=17214=18016=1980=1080= |1968=1777=1705=1382=12210= |1026=1788=20155=1879=1578=1927=17312=15012=2092=1043=20119=19312=1145=1238=d9014

17、=51006=1899=1960=-1720=120019=1470=20140=1028= |116010=17610=14110=16130=832=1749=1400=20211=1306=2095=20134=16010=17016=1608=16105=1544=1055=1405=1796=1818=1320=20611= !1981=1334=14310=：1567=i 15312=j1291=1612=19130=19210=1562=1449=-501=! 19112=1123=1180=1872=511=2012=1473=825=i1879=1495=1897=1128=

18、 2085=.-q1909=1486= 1210=20128=18610= 1003=1466=1636=18106=1326=1789=19131=1113=1568=19170=20170=17210=1700=15114=1006=14011=1824=1700=-nBsnBsvnewnBmrBBnBBnBsnreevnBBsnrev.707|833201321914219 2 7 =i !15 2 4 =|1491!13013512|1715213 4 1 . _ _ _ _18 0 2 705155920 7 7 =157610 3 0 13 1 11 86118 5 2 =2016

19、111 3 1 17 4 9 147720 1 4 =14 8 1 =16 1 13 13 9 0 122614 5 4 =173918 3 14 18 4 13 1911317 1 6 =2031211 5 5 18 11 3 175815 7 1 =208512 6 0 17 4 6 204614 3 10 =111920 12 0 12 2 1 198019 4 6 =2014018 4 8 20 10 9 19513i18 9 3 =1 119315113 3 10 15 2 5 1064I15 3 11 =20170- - -_117 2 9 19906 一 3 一 3145717

20、2 8 14 5 2 1913416 5 11 70118 6 2 17 8 4 105020 19 1 189313 2 6 17 7 1 1911417 2 5 125215 9 2 13 1 0 1914019 一 3 一 3 192215 1 13 17 4 9 10137 4 2 1913513 1 11 16 2 3 904-19 1 17 |157613 9 2 19 8 2 20411113 一 11 一 1 13827 4 1 15 3 8 112221 1 166812 一 1 一 6 15012H3211i16 7 1 20101017 16 0 11 2 4 19621

21、9 1 10 20 0 1 19 7 12 16 7 1 182111163552216 5 5 17 9 6 153818 12 3 .18 1 4 9 一 0 一 0 191205 1 3 19909 0 0 -19 9 4 12 1 6 13 3 5 1741019 3 15 12 5 6 ；20 8 10 18 2 2 16115i91718 5 6 1928r-r.119 5 8 20 18 1 16 15 1 H5 2 2 ;1厂 十. .20 0 1 18 5 3 .J.111 0 4 M6 1 918 9 4 訂 8 12 4 17 1 5 192514 3 5 6 3 3 .

22、 .1762I:1128319 5 12 20 0 3 120067 4 0=-_ _J20 4 14 =19 6 12 =19 0 9 =i16 5 8 =19 1 1 =i_ _19 10 9 =_ _ _ _ _712=.-_.9 7 0 =10 2 2 =14 3 8 =16 11 3 =13 3 9 =11 0 8 =20 4 11 =! i；11 7 3 =18 0 1 =16 7 0 =16 10 1 =19 0 15 =16 0 2 =9 6 2 =17 13 2 =- -18 6 6 =19 4 15 =20 0 12 =14 7 0 =18 15 1 =_ -117 10

23、4 =16 6 1 =1119 6 6 =20 7 7 =10 6 0 =19 6 2 =18 5 9 =Vi16 7 8 =18 6 9 =19 10 9 =17 1 14 =9 1 2 =i14 0 2 =19 一 7 一 4 =13 0 7 =8 一 0 一 5 =16 3 6 =-1119 8 2 =18 10 3 =19 5 5 =-20 6 5 =19 3 14 =-q18 3 14 =17 11 6 =15 1 0 =17 1 7 =9 7 0 =19 5 3 =. . .20 3 1 =20 19 1 =18 3 0 =17 0 11 =9 0 2 =9 3 6 =15 9 0 =10 4 5 =18 5 9 =16 2 12 =8 6 1 =20 6 1 =二1 6 =-5 2 2 =17 4 7 =13