用竖式计算.215÷36 318÷53 196÷28.
直接写得数.×= ÷2= ×14= 10×=×2= ×= ÷= ÷=
直接写出得数×10= += 52×=9÷= ÷= 11﹣=0÷×= ﹣+= 1÷9×=
直接写出得数.= = = == = = == = = == = = == = = == = = ==
直接填得数×= ×= 16×= ÷= 1÷=÷= 9÷= ÷33= 1﹣25%= 75%+0.25=÷= ﹣=
直接写出得数. =80%= 1÷10%= 74×4×25%= ×15%=