20以內進位加法表
20以內退位減法表
20以內的加減法 加數(shù)是1和減數(shù)是1的練習
加數(shù)是1和減數(shù)是1的練習
加數(shù)是2和減數(shù)是2的練習
加數(shù)是2和減數(shù)是2的練習
加數(shù)是3和減數(shù)是3的練習
加數(shù)是3和減數(shù)是3的練習
加數(shù)是4和減數(shù)是4的練習
加數(shù)是4和減數(shù)是4的練習
加數(shù)是5和減數(shù)是5的練習
加數(shù)是5和減數(shù)是5的練習
加數(shù)是6和減數(shù)是6的練習
加數(shù)是6和減數(shù)是6的練習
加數(shù)是7和減數(shù)是7的練習
加數(shù)是7和減數(shù)是7的練習
……
綜合測驗