Copyright © University of Cambridge. All rights reserved.

Which symbol ($+$, $-$, $\div$ or $\times$) should replace $\oplus$ to make the following equation true?

$$ 1\times 2\times \left(3\oplus 4 + 5\right) \times \left(6\times 7 + 8+ 9\right) = 2006 $$

If you liked this problem, here is an NRICH task that challenges you to use similar mathematical ideas.

*This problem is taken from the UKMT Mathematical Challenges.**View the archive of all weekly problems grouped by curriculum topic*

View the current weekly problem