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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,1.圈一圈,算一算。,+=,1.圈一圈,算一算。,+=,2.,10,7 +5 =,10,8 +6 =,3,2,12,2,4,14,3.,7+4=,8+7=,6+5=,7+7=,7+6=,8+3=,11,15,11,14,13,11,4.,7+8=,6+9=,7+9=,6+8=,6+7=,15,15,16,14,13,1.,8+,2=,4=,8=,6=,7+,3=,5=,9=,7=,10,12,16,14,10,12,16,14,2.,+=,3.先说得数,再写算式。,8+,7,9,3,6,8,5,2,4,7+,8,6,9,7,5,4,6+,8,6,9,5,7,4.,?个,=,7 个,7,5,+,12,5.,8+7=,6+5=,7+6=,7+8=,8+9=,7+4=,8+6=,7+7=,7+9=,15,11,13,15,17,11,14,14,16,6.,12,13,14,15,8+5,7+8,9+5,9+3,8+4,9+6,7+7,9+4,6+6,8+6,7.,8+4=,8+9=,9+7=,9+6=,8+3=,8+6=,8+7=,7+5=,8+8=,12,17,16,15,11,14,15,12,16,8.,?只,=,8,7,+,15,+,=,(,只,),一共有多少只兔?,8,7,15,4,1,2,3,15,一共 15 只。,10 只白兔,5 只灰兔。10+5=,15,8+7=,=,(,只,),=,(,个,),7,+,3,10,9,-,3,6,+,=,(,只,),4,8,12,1.,有,(),只,母鸡。,一共有,(),只鸡。,有,(),只,公鸡。,8,4,12,2.,9+6=,7+5=,8+7=,7+8=,6+7=,9+4=,8+5=,10,-,3=,8+9=,15,12,15,15,13,13,13,7,17,3.,=,(,条,),有,(,),条鱼,,游走,(),条。,10,4,还有几条?,10,-,4,6,4.,=,(,人,),一共有多少人?,水里有 8 人。,8,+,6,14,5.,8+,(,),=12,7+,(,),=13,9+,(,),=16,4,6,7,9+,(,),=15,8+,(,),=11,7+,(,),=14,6,3,7,复 习,9+5=,9+4=,9+3=,9+2=,8+5=,8+4=,14,13,12,11,13,12,8+3=,7+5=,11,12,1,5+7=,5+8=,5、4、3、2 加几,怎样想能很快说出得数?,12,13,2,4+8=,3+9=,12,12,1.,=,5,+,6,11,=,4,+,7,11,2.7+5=,5+7=,12,14,12,14,9+5=,5+9=,3.9+4=,4+9=,13,11,13,11,8+3=,3+8=,11,11,9+2=,2+9=,+7,4,6,3,5,7,1.先说得数,再写算式。,+9,4,5,2,3,+8,3,4,5,2.看谁算得又对又快。,5+7=,13,-,3=,2+9=,4+9=,12,10,11,13,10,-,7=,5+9=,3+8=,3+9=,4+8=,10,-,9=,4+7=,5+8=,3,14,11,12,12,1,11,13,3.在 里填上“,”“,”或“,=,”。,8+4 13,5+7 14,7+9 16,6+5 12,=,7+6 12,3+8 11,=,一班有,二班有,一共有,7 个,6 个,_,个,5 个,8 个,_,个,4 条,7 条,_,条,4.算一算每一种体育用品有多少?,13,13,11,整 理 和 复 习,9,+,9,9,+,8,8,+,9,9,+,7,8,+,8,7,+,9,9,+,6,8,+,7,7,+,8,6,+,9,9,+,5,8,+,6,7,+,7,6,+,8,5,+,9,2,+,9,9,+,2,8,+,3,7,+,4,6,+,5,5,+,6,3,+,8,4,+,7,9,+,4,8,+,5,7,+,6,6,+,7,5,+,8,4,+,9,9,+,3,8,+,4,7,+,5,6,+,6,5,+,7,4,+,8,3,+,9,20 以内进位加法表,在 20 以内进位加法表中,,(,1,),竖着看,各列是怎样排列的?,(,2,),横着看,各行是怎样排列的?,(,3,),你还发现什么有规律的排列?,(,4,),这些题你是怎样算的?,找得数是 13 的卡片。,1.把和是 11,12,13,的加法算式一组一组地,说出来。,2.用相同的时间,看谁算得又对又多。,8+6=,2+9=,7+5=,4+8=,10+4=,14,11,12,12,14,3+6=,4+7=,5+8=,3+7=,9+8=,9+7=,6+4=,8+3=,0+6=,5+10=,9,11,13,10,17,16,10,11,6,15,3.,5+8=,+,+,+,6,7,9,4,10,3,7+4=,+,+,+,8,3,6,5,9,2,(,1,),往下应该怎样画?,(,2,),哪一行和其他三行的规律不同?,6,7,8,9,10,4,5,6,7,8,2,4,6,8,10,1,2,3,4,5,
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