A.小班B.中班C.大班D.小學(xué)
A.辨認(rèn)和歸并B.計(jì)數(shù)和求和C.辨認(rèn)和標(biāo)記D.歸并和計(jì)數(shù)
A.逐一計(jì)數(shù)B.順接接C.倒著數(shù)D.按群計(jì)數(shù)