北师版十几减8一年级数学课件
日期:2010-11-25 11:26
8+()=128+()=148+()=158+()=174679十几减8111–8=想:9加()得113311减8得3213-8=□想:8加()得125515-8=□想:8加()得1477摆一摆,算一算312-8=□想:8加()得124416-8=□想:8加()得168814-8=□617-8=□9做一做1.□○□=□□○□=□2.8+5=8+3=13–8=11–8=8+7=15–8=12-84□○□=□16-88131115537510-3=□714-□=□410-36,
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