问题 解答题 直接写出得数(7.5+2.5)÷0.25710-18×42÷85×25242.25×1.8+1.25×0.18. 答案 (7.5+2.5)÷0.25=40; 710-18×4=638; 2÷85×2524=12596; 2.25×1.8+1.25×0.18=4.275.故答案为:40,638,12596,4.275.