6.3+7=
1-0.01=
15×0.01=
5÷9=
2.4+0.76=
8.2÷0.1=
a+1.4a=
0.62=
3.1+0.4= += 640÷16= ×3×4=
10÷= ×= 2.4×= 25×40%=