Ordne die Zahlen der Größe nach!

• $1 \cdot 9 = 9$
• $2 \cdot 9 = \boxed{18}$
• $3 \cdot 9 = \boxed{27}$
• $4 \cdot 9 = \boxed{36}$
• $5 \cdot 9 = \boxed{45}$
• $6 \cdot 9 = \boxed{54}$
• $7 \cdot 9 = \boxed{63}$
• $8 \cdot 9 = \boxed{72}$
• $9 \cdot 9 = \boxed{81}$
• $10 \cdot 9 = \boxed{90}$

• $9 \text{ in } 9 = 1 \text{ mal}$
• $9 \text{ in } 18 = \boxed{2} \text{ mal}$
• $9 \text{ in } 27 = \boxed{3} \text{ mal}$
• $9 \text{ in } 36 = \boxed{4} \text{ mal}$
• $9 \text{ in } 45 = \boxed{5} \text{ mal}$
• $9 \text{ in } 54 = \boxed{6} \text{ mal}$
• $9 \text{ in } 63 = \boxed{7} \text{ mal}$
• $9 \text{ in } 72 = \boxed{8} \text{ mal}$
• $9 \text{ in } 81 = \boxed{9} \text{ mal}$
• $9 \text{ in } 90 = \boxed{10} \text{ mal}$

Task 5: Order the numbers by size.

The numbers are $27, 81, 63, 18, 90$.

The ordered list is $\boxed{18, 27, 63, 81, 90}$.