问题 解答题 直接写出得数.2.4×5=178.5-36.5-63.5=250×0.02=7.86×99+7.86=0.72×16=25×37×25×712=17×2÷17×2=56÷512= 答案 2.4×5=12178.5-36.5-63.5=78.5250×0.02=57.86×99+7.86=7860.72×16=0.1225×37×25×712=5217×2÷17×2=456÷512=2故答案为:12,78.5,5,786,0.12,52,4,2.