==== 31. Oktober bis 4. November ====
=== 1. Wochenlektion ===
Berechnen Sie:
  - $$\frac{5}{4}:\frac{3}{7}-\frac{9}{4}$$
  - $$\left(\frac{7}{4}-\frac{1}{2}\right):\frac{25}{32}$$
  - $$-\frac{3}{2}:-\frac{15}{37}-\frac{6}{5}$$

<hidden Lösungen>
  - $$\frac{35}{12}-\frac{9}{4}=\frac{35}{12}-\frac{27}{12}=\frac{2}{3}$$
  - $$\left(\frac{7}{4}-\frac{2}{4}\right):\frac{25}{32}=\frac{5}{4}:\frac{25}{32}=\frac{8}{5}$$
  - $$\frac{37}{10}-\frac{6}{5}=\frac{37}{10}-\frac{12}{10}=\frac{5}{2}$$
</hidden>

=== 2. Wochenlektion ===
Berechnen Sie:
  - $$\left(\frac{9}{5}-\frac{7}{3}\right)\cdot-\frac{45}{32}$$
  - $$\left(\frac{7}{2}-\frac{9}{4}\right)\cdot\frac{12}{25}$$
  - $$\left(\frac{4}{5}+\frac{3}{2}\right)\cdot\frac{4}{23}$$

<hidden Lösungen>
  - $$\left(\frac{27}{15}-\frac{35}{15}\right)\cdot-\frac{45}{32}=-\frac{8}{15}\cdot-\frac{45}{32}=\frac{3}{4}$$
  - $$\left(\frac{14}{4}-\frac{9}{4}\right)\cdot\frac{12}{25}=\frac{5}{4}\cdot\frac{12}{25}=\frac{3}{5}$$
  - $$\left(\frac{8}{10}+\frac{15}{10}\right)\cdot\frac{4}{23}=\frac{23}{10}\cdot\frac{4}{23}=\frac{2}{5}$$
</hidden>

=== 3. Wochenlektion ===
Berechnen Sie:
  - $$-\frac{3}{4}\cdot\frac{64}{45}+\frac{8}{3}$$
  - $$-\frac{3}{2}\cdot-\frac{53}{15}-\frac{4}{5}$$
  - $$\frac{3}{5}\cdot\frac{95}{18}-\frac{5}{3}$$

<hidden Lösungen>
  - $$-\frac{16}{15}+\frac{8}{3}=-\frac{16}{15}+\frac{40}{15}=\frac{8}{5}$$
  - $$\frac{53}{10}-\frac{4}{5}=\frac{53}{10}-\frac{8}{10}=\frac{9}{2}$$
  - $$\frac{19}{6}-\frac{5}{3}=\frac{19}{6}-\frac{10}{6}=\frac{3}{2}$$
</hidden>