问题 解答题 直接写出得数:3×19÷19×3=0.13=5×25%=3.14×22=2-35-25=50%+12=1689÷8=2÷3×6= 答案 3×19÷19×3=9,0.13=0.001,5×25%=1.25,3.14×22=69.08,2-35-25=1,50%+12=1,1689÷8=219,2÷3×6=4.