Fill in the missing numbers of this pyramid, then press [Check] to see if you were correct. Use the [Hint] button to get a free letter if a number is giving you trouble.

Click here to access information on cardinal numbers.

Remember: Numbers start with a lower-case letter, unless they are at the beginning of a sentence.

| zwanzig |
 |  acht  |       
| drei  |          |  sieben |
               | zwei |      | drei |              
             | eins |                         | zwei |