课件25张PPT。0的认识
210数一数有几个桃子( )( )用数字表示。042个气球0我会排队250314←起点
数字0,
像鸡蛋,
上下长,
左右扁;
要想把它写得好,
封口之处是关键。3 - 3 = 04 + 0 = 4一共有几只青蛙?︸看谁算得又对又快。5 + 0 =2 - 0 =1 + 4 =4 - 2 =4 + 1 =2 + 3 =4 - 1 =2 + 2 =4 - 4 =5 - 3 =3 + 1 =3 - 3 =看谁算得又对又快。5 + 0 =52 - 0 =21 + 4 =54 - 2 =24 + 1 =52 + 3 =54 - 1 =32 + 2 =44 - 4 =05 - 3 =23 + 1 =43 - 3 =0小猴吃桃小猴吃桃小猴吃桃4 - 4 = 0看图
列算式532看图
列算式5500