1÷=
÷=
÷3=
×=
18÷=
+=
1-26%= 3.5×= 18÷=
÷0.15= 10÷10%= 80×(0.875+)=
画出了50%
画出了80%
: 0.9: :0.75
+= -= 15×= 2.1÷=
8÷= ×= ÷10= 1.5÷0.3=
(+)×12= 7×÷7×=
×16= 12÷ = × =
0× + = 1÷ = ÷ =
÷ = × ÷ × =
解:设剩下平均每天铺x平方米。