文档介绍:1块1块地数,共20块摆一摆,数一数1块1块地数,共20块2块2块地数,共20块1块1块地数,共20块2块2块地数,共20块5块5块地数,共20块1块1块地数,共20块2块2块地数,共20块5块5块地数,共20块10块10块地数,共20块1块1块地数,共20块2块2块地数,共20块5块5块地数,共20块10块10块地数,共20块123456789101112131415**********块1块地数,共20块2块2块地数,共20块5块5块地数,共20块10块10块地数,共20块1234567891011121314151617181920246810**********块1块地数,共20块2块2块地数,共20块5块5块地数,共20块10块10块地数,共20块1234567891011121314151617181920246810121416182051015201块1块地数,共20块2块2块地数,共20块5块5块地数,共20块10块10块地数,共20块12345678910111213141516171819202468101214161820510152010207214数一数,填一填4312