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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,20,以内单双数,大河幼稚园预备学前班 朱郭骄,单数与双数,单数双数,单数有,1,,,3,,,5,,,7,,,9,双数有,2,,,4,,,6,,,8,,,10,单数有,11,,,13,,,15,,,17,,,19,双数有,12,,,14,,,16,,,18,,,20,下列数字是单数还是双数,23,,,35,,,66,,,89,,,100,,,359,11+2=12+3=,10+4=11+3=,12+1=13+2=,14-1=15-3=,13-2=14-4=,14+1=10+5=,测验,10,以内,2+5=3+6=,8-4=9-7=,6+2=4+5=,6-4=4+6=,1+7=7-3=,2+7=5-3=,4+2=9-7=,15,以内口算,10+5=11+2=,13+2=12-2=,15-4=12+2=,15-2=14-3=,10+3=11+4=,14+1=13-3=,15-1=12+3=,20,以内口算,11+6=12+4=,10+8=19-3=,15+4=14-3=,18+2=15+3=,17-4=16-5=,14+4=13+5=,13+3=16-4=,
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