和是9的加法和9减几Р八 10以内的加法和减法Р?个Р(个)Р=Р4Р+Р5Р9Р9个Р?个Р(个)Р=Р9Р-Р3Р6Р课后作业Р探索新知Р当堂检测Р课堂小结Р得数是9的加法和9减几Р1Р课堂探究点Р2Р课时流程Р8 + 1 =Р9Р1 + 8 =Р9Р9 - 1 =Р8Р9 - 8 =Р1Р探究点得数是9的加法和9减几Р+ =Р- =Р+ =Р- =Р小试牛刀(教材P62试一试)Р1.哪两张卡片上的数相加等于9?Р小试牛刀(教材P62想想做做)Р2.Р9 - 8 =Р1Р9 - 6 =Р3Р9 - 4 =Р5Р9 - 2 =Р7Р9 - 5 =Р4Р9 - 3 =Р6Р9 - 7 =Р2Р9 - 1 =Р8Р9 - 9 =Р0Р9 - 0 =Р9Р3.Р5+4 =Р9Р9-4 =Р5Р3+6 =Р9Р9-3 =Р6Р7+2 =Р9Р9-6 =Р3Р9-2 =Р7Р2+7 =Р9Р4+5 =Р9Р9-7 =Р2Р6+3 =Р9Р9-5 =Р4Р4.Р9 - =Р+ = 9Р5.Р=Р5Р2Р7Р=Р8Р4Р4Р? 盒Р8 根Р?根Р+Р-
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