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20以内不进不退加减法

发布时间:2014-02-07 09:50:04  

19-16 = 12+5 = 14-1= 11+7 = 18+1 = 17-3= 1+19= 15-10= 6+12 = 15+3 = 16-12 = 3+14 = 19-9= 13+4= 10+9= 17-7 = 6+13= 18-15 = 14-10 = 16+1=

19-8 = 19+0 = 19-14 = 13+5 = 1014-4 = 17+0 = 1616-1 = 1815+5 = 0+19= 1511-10 = 7+12 = 12-10= 0+15 = 17-15 = 116+1 = 1919-7 = 16+0 = 1418-4 = 131+18 = 3+10= 19-0 = +2 = -16= +3 = 1-6= 12+2 = -11 = 0+18= 0+10 = -0= 10+1 = 5+2= -15= 6+14 = 1-12 =+6 = 1 17+1= 17-6 = 4+13= 1+14 = 1518-12 = 1+17= 1517-17= 162+10 = 18+2 = 13 19-10 = 6+11 = 18-3 = 41+15 = 1817-16= 115+14 = 1+8 = 09-17 = 161+2 = 10+4 = 15-15 = 14+3 =

-2 = +10 = -14 = +2 =

13-0 = +3 =

10+0 = 16-13 = +10 = -11 = +9= 11-1 = +17 = -10 = +7 =

14 18 14 1

15+1 = 18-10 = 7+13 = 17-12 = 11-11 = 12+4 = 17-4 = 1+16 = 18+0 = 13+2 = 11+6= 18-7 =

15-3 = 13-13 = 11-1= 13+7 = 12+3 = 0+16 = 14+2 = 16-15 = 13-11 = 149+10= 1216-3 = 1914+5= 519-18 = 18-5 = 10+6 = 1518-8 = 314-3 = 1219+1 = 1312+0 = 1713-2= 43+17= 019-5= 134+15 = 12-2 = 3+17= 15-13 = -11 = +8= -4 = +13 = 16-16 = 0+12 = -12 = +16= -12 =+1 = 11-13 = +11 = +13= -3 = 112+7 = 10+5= 17-2= 3+12 = 016-14 = 72+15 = 1916+4 = 18-17= 2+16= 3+15 = 15-5 = 4+11 = 1513+0 = 17-0 = 011+1 = 1714-2 = 814+0 = 9-6 = 1518-1= 31+11 = 1616-4 = 5+11 = +11= -3 = 4+12 = 14-13=

14+6 = 16-11 = +1 =

-4 = +2= +14 = -0 = +10 = 12-2 = +0 = +13 = -6 = +12= 10+8 =

12

18-2 = 2+13 = 2+18 = 19-13 = 15+4= 14-14= 17-14 = 11+0= 12-1 = 1+13 = 8+11 = 14-2 = 5+15 = 16-13 = 13-10 = 2+17= 17-5= 2+14= 14+1= 12-11 = 10+4 = 19-1 = 1111+4 = 18-14 = 122+12 = 1516-5= 45+11 = 19-2= 1211+5 = 1220-10 =

19-11 = +3 = 15-0 = +6 = -1 = +14 = 413-1 = +8= 10-11 = 17+3 = 17-1= 7+10 = 1815-12 = 35+10 = 1719-12 = 2+16 = 119-19= 5+4 = 1817-10 = 109+11 = 1314+5 = -18 = +11 = -11 = +11 = 3-10 = +10 = -13 = +3 = -12 =

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