Copyright © University of Cambridge. All rights reserved.

'Which Symbol?' printed from

Show menu

Put in the missing symbols to make these number sentences correct.

Use $+ , -, \times , \div$ and $ =$ .

For example:
Try these:

All these number sentences below, except two of them, have two solutions.
Can you find the symbols to use?

Which two number sentences have only one answer?
Can you see why this is so?

You might like to use this interactivity:

Full screen version:
This text is usually replaced by the Flash movie.