小学五年级上册数学口算题,含小数乘除法,难点的.急求! !额,还是简单点的吧!
问题描述:
小学五年级上册数学口算题,含小数乘除法,难点的.急求! !
额,还是简单点的吧!
答
8.7×17.4-8.7×7.4= 12.5×0.4×2.5×8= 0.68÷(5.2-3.5)×1.25= (0.25+2.5+25)×0.4= 5-0.9×0.2+1.8÷0.5= 6.4×3.28+4.6×3.28-3.28= 12.27+21÷(7.3-6.6)×2.4= ...