7×8÷7×8= 0×0.35+3.5= +=
×+×= 0.52= 6×3.14=
2.4×=
1.6÷8%=
÷×=
0.25×32×0.125=
-=
3.14×(0.4÷2)2=
2.72+3-2.72+3=
1-0.09=