## Task 6

How many minutes are $70 \cdot 30$ min? Convert to hours.

How many pfennigs are $87 \cdot 20 \mathrm{Pf}$? Convert to marks.
2100 min $=35$ hours; $1740 \mathrm{Pf}=17.40 \mathrm{M}$

### 13.8.2 2nd Round 1979, Class 4