青岛版五四学制五年级小数分数口算题

口算练习(A)4.7+2.3= 4.5×2= 6.9-2.5= 7.2×0.8= 6×3.4= 0.62-0.32= 1.4×0.5= 0.75

腾讯文库青岛版五四学制五年级小数分数口算题