The worksheets themselves are in German – just as in class. The editor is only available in German so far.
Understanding numbers · typical for Grades 1 and 2
Number houses – worksheets to print
Split a roof number into two numbers, e.g. 10 = 7 + 3.
- Choose the number of tasks and the difficulty yourself
- With an answer sheet and, if you like, a QR code to the answers
- At three levels (★ to ★★★) and as group A and B
- As a single worksheet or as a task on a mixed worksheet
Number houses: explained simply
In a number house, the two numbers on each floor add up to the number in the roof.
How to work it out
- Left number + right number = roof number, separately for each floor.
- Find the missing number by subtracting the known number from the roof number.
An example, step by step
The roof shows 10 and the left room shows 7. What goes on the right?
- The two rooms must add up to 10.
- Calculate 10 − 7 = 3. Put 3 on the right.
- Check: 7 + 3 = 10.
Your turn
Roof 20, right room 8: what goes on the left?
Show the answer and method
20 − 8 = 12, because 12 + 8 = 20.
Ready-made worksheets: Number houses
Click the picture to see the worksheet large and print it. “Use” opens it in the editor.