人教版新课标二年级上册口决得数.ppt
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1、1,口算小能手,2,乘法,3,91=,9,33=,4,89=,72,5,99=,81,6,77=,49,7,11=,1,8,81=,8,42=,9,71=,7,10,83=,24,46=,11,61=,6,32=,12,66=,36,49=,13,51=,5,14,97=,63,15,41=,4,22=,16,88=,64,17,21=,2,18,81=,8,42=,19,25=,10,20,44=,16,28=,21,87=,56,22,29=,18,36=,23,72=,14,24,31=,3,25,91=,9,33=,26,35=,15,27,37=,21,28,62=,12,34=,2
2、9,41=,4,22=,30,62=,12,34=,31,32=,6,32,44=,16,28=,33,75=,35,34,83=,24,46=,35,47=,28,36,39=,27,37,66=,36,49=,38,51=,5,39,81=,8,42=,40,52=,10,41,67=,42,42,53=,15,43,45=,20,44,67=,42,45,55=,25,46,56=,30,47,57=,35,48,31=,3,49,48=,32,50,58=,40,51,68=,48,52,27=,14,53,54=,20,54,71=,7,55,74=,28,56,21=,2,57,69=,54,58,29=,18,36=,59,76=,42,60,78=,56,61,93=,27,62,79=,63,63,95=,45,64,84=,32,65,73=,21,66,85=,40,67,44=,16,28=,68,86=,48,69,65=,30,70,66=,36,49=,71,59=,45,72,96=,54,73,98=,72,74,29=,18,36=,75,76=,42,76,47=,28,
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