问题 解答题 直接写出下面各题的得数. 298+98=0.025×400=28÷79=0.23=38×49=6.75-(1.9+34)=(18+29)×72=56×31+31÷6= 答案 298+98=396,0.025×400=10,28÷79=36,0.23=0.008,38×49=16,6.75-(1.9+34)=4.1,(18+29)×72=25,56×31+31÷6=31.