Maths isn't just multiplication and addition, it's also about thinking logically. UKMT Maths designs to make you think deeply and not just make you guess answers. So, if you want to compete in this challenge, test yourself first with this quiz.
400
420
441
800
840
19
22
24
25
28
Diagram 1
Diagram 2
Diagram 3
Diagram 4
Diagram 5
10
9
8
7
6
1
2
3
4
5
0
50
100
255
2525
Twelve
Thirteen
Fourteen
Fifteen
Sixteen
16
8
4
2
1
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Here's an interesting quiz for you.