Four Numbers
What values can you make?
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 join them.)
  • Can you construct expressions that evaluate to each number from 1 to 10?
  • What other interesting values can you make?
Click Save to store a copy of any complete expression in the box on the right.