9×9%= ×60%= 125%÷25%= 0.2×0.3=
5π= 0.53= 0.062= 12.56÷3.14=
6.7+5.8=
16×12.5%=
7.3-3=
4.5×=
210÷71≈
÷=
2.4×0.5=
0.52÷0.4=
1-×=
0.2:1.4=