Number houses with tens
Number houses with tens helps children practise splitting a full-tens number into every possible pair of addends. Read the short guide and look through the examples before choosing online practice or a printable worksheet.
How to solve this
- A calculation house splits one number (the "roof") into two parts (the "floors") that add up to it.
- If you know the roof and one floor, subtract to find the missing floor.
- Check that both floors add up exactly to the roof number.
Examples
Number house 70: 30 + __
40
Number house 56: 20 + __
36