一年级数学上册第5单元6_10的认识和加减法《6和7》教学课件新人教版.ppt

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6和7,有5个珠子,,添上1是( )。,有6个珠子,,添上1是( )。,6,7,5 6 6 7 6 5 7 6,看图计算。,4,7个 分成两堆,有几种分法?,摆一摆,算一算。,2 + 5 =,5 + 2 =,7,7,看一看,算一算。,4 + =,3 + =,7,4,7,3,5+1=6,1+5=6,7-1=6,7-6=1,想一想,填一填。,3 + 4 =,4 + 3 =,7,7,7 - 4 =,7 - 3 =,4,3,2+5=7,5+2=7,7-2=5,7-5=2,拨一拨,说一说。,摆一摆,填一填。,6,6,4,2,7,7,5,2,6,3,谢谢观看!,

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