Can you find combinations of strips of paper which equal the length of the black strip? If the length of the black is 1, how could you write the sum of the strips?
Can you find ways to make twenty-link chains from these smaller chains?
Thanks to the many of you who submitted
a solution to this problem. Congratulations to Josie, Dominic and
George from St Nicholas CE Junior School, Newbury and also Abigail
from Histon Junior School and Charlie from Beckley C of E who all
sent in clearly explained solutions. The solution given below was
sent in by Cong: