十几减9十几减9徐州市翟山小学崔宇9+()=119+()=149+()=159+()=17256819+2=1119+2=11更多全套课件免费下载:绿色圃中小学教育网http://www.lspjy.com19+2=1111–9=想:9加()得11211减9得22摆一摆,算一算.212-9=摆一摆,算一算.212-9=想:9加得1212减9得摆一摆,算一算.212-9=想:9加得1212减9得14-9=摆一摆,算一算.212-9=想:9加得1212减9得14-9=摆一摆,算一算.想:9加得1414减9得3313-9=想:9加()得134313-9=想:9加()得13416-9=想:9加()得167415-9=想:9加()得15617-9=想:9加()得17818-9=想:9加()得189做一做51.14-9=想:9加()得1415-9=想:9加()得1562.9+()=139+()=1613-9=()16-9=()4747