【五年级上册数学】 四则混合运算专项训练

【五年级上册数学】 四则混合运算专项训练


简介:
一、先确定运算顺序,再计算 3.5×0.7+5.5×0.7+0.7 9.4×[1.28-(1.54-0.31)] =(3.5+5.5+1)×0.7 =9.4×(1.28-1.23) =10×0.7 =9.4×0.05 =7 =0.47 [(6.1-4.6)÷0.8-1]×0.4 =(1.5÷0.8-1)×0.4 =(1.875-1)×0.4 =0.875×0.4 =0.35 3.72÷[(54.7-17.5)×(0.45÷0.9)] = 3.72÷(37.2×0.5) = 3.72÷37.2÷0.5 = 0.1÷0.5 = 0.2