把算式补充完整,使之能简算.
①2.5×1.36×0.4= ×( ×0.4)
②7.5×0.48+0.48×2.5=(7.5+ )× .
把算式补充完整,使之能简算.
①2.5×1.36×0.4= ×( ×0.4)
②7.5×0.48+0.48×2.5=(7.5+ )× .
试题篮
()