2.4÷0.24=
6.53-6.1=
5.6÷0.7=
25×4×3.14=
3.5÷0.35=
30.5+5=
0.63÷9=
0.36÷0.09÷4=
40-3.69÷18
3.14×42-3.14×32
62×0.98
6.3×103-0.63×30