Library / UKMT Intermediate Mathematical Challenge /246 of 267

UKMT Intermediate Mathematical Challenge, 2026

Number theory Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

In the addition shown, the digits $C, I, K, M, T$ and $U$ represent different digits. What is the value of $T + I + C + K$ ?

(A) $6$ (B) $15$ (C) $16$ (D) $25$ (E) More information needed

Figure for this problem

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.