0.8-0.08=
2.5× 4=
8.64×0.2=
0.6×0.5÷0.6×0.5=
3.09÷3=
0.21÷0.003=
0.62-0.36÷4=
0.7+0.3×0.7=
2.3+3.5= 6×2.5= += 1=
-= 12.6﹣2.6= 200﹣102= 0÷0.5=
= =0.25×0.4= 12.6÷0.2=