Library / UKMT Intermediate Mathematical Challenge /13 of 267

UKMT Intermediate Mathematical Challenge, 2023

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

What is the value of $1 - (2 - (3 - 4 - (5 - 6)))$ ?

(A) $-2$ (B) $-1$ (C) $0$ (D) $1$ (E) $2$

We don't reproduce this publisher's solutions. Their own solution is here — work the problem first.

Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: UK Mathematics Trust, licensed © UK Mathematics Trust; past papers published free at ukmt.org.uk. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.