问题 解答题 直接写得数.7÷1.4=13+25=4×25%=47÷221=0.25×3.2×1.25=15.85-(5.6+3.85)= 答案 7÷1.4=5,13+25=1115,4×25%=1,47÷221=6,0.25×3.2×1.25=1,15.85-(5.6+3.85)=6.4.