五年级上册数学口算练习1000道
4.25×4= 0. 07×0.5= 33×0.04= 6.5×4= 2.3×0.06= 15×0.08= 0.09×0.9= 4.7×0.1= 54×0.8= 1.6×0.03= 0.8×0.9=
五年级上册数学口算练习1000道