一年级数学上册第5单元6_10的认识和加减法《10》课件新人教版.ppt

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,10,新知学习,摆10朵 。,新知学习,1,2,3,4,5,6,7,8,9,5,先用 摆一摆,再填数。,新知学习,新知学习,新知学习,凑十歌,一九一九好朋友,,二八二八手拉手,,三七三七真亲密,,四六四六一起走,,五五凑成一双手。,知识拓展,2,1,3,4,5,6,8,5,7,9,哪两个数合起来是10?,知识拓展,想一想,摆一摆,填一填。,1,9,10,9,1,1 + 9 =,9 + 1 =,10 1 =,10 1 =,10,10,知识拓展,8,2,10,8,2 + =,10 2=,10,8,10 =,2,8,知识拓展,7,3,10,7,3 + =,10 3 =,10,7,10 =,3,7,知识拓展,4,6,10,+ 6 =,10,4,6,10 =,10 =,4,4,6,知识拓展,5,5 + 5 =,10 5 =,10,拓展应用,5,7,2,9,3,8,6,4,1,拓展应用,8 个,3,10,7,-,2,8,10,+,一共有10个 。,还剩几个?,一共有多少个?,拓展应用,5,5,5,5,10,+,拓展应用,7 + ( ) = 10,3,7 加几等于 10?,拓展应用,再画几面 就是 8 面 ?,_,6 +( )= 8,2,拓展应用,? 条,3,+,7,10,

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