| 0.9×99+0.9= | 1.25×80= | 2.5÷0.01= |
| 0.43= | \( \frac {8}{25}\)÷\( \frac {4}{5}\)= | 2-\( \frac {3}{5}\)-\( \frac {2}{5}\)= |
| 3-\( \frac {1}{4}\)-\( \frac {3}{4}\)= | （\( \frac {2}{5}\)÷\( \frac {1}{6}\)）×30= | \( \frac {4}{3}\)×75%= |
| 1+2%= | \( \frac {7}{8}\)×4×\( \frac {8}{7}\)= |