Construct various mathematical expressions using your chosen number and the operations available
from the buttons below. Click a button to add an operator tile, and then build up expressions by
dragging the tiles on top of each other in the shaded area —
the borders will turn red when combination is possible. (You can also drag two numbers together to
- Can you construct expressions that
evaluate to each number from 1 to 10?
- What other interesting values can you make?
to store a copy of any complete expression in the box on the right.