57与16的积是6的多少倍?
= = = == = = == = = == = = =
直接写出得数×3= ×16= ×= (+)×4=×+×= += ÷3= 4÷=
×1= 52﹣42= 0.75﹣0.5= ×= ÷= 125×0.08=0.5+0.02= ÷= ÷= 0.15×6= 12÷0.3= 0÷=
直接写得数.×16= 12÷= 24×= ×÷=1÷= ÷15= ÷= ×÷×=
口算我最棒= 26×= = = == = = 6.4÷20%= 125%×8=