Follow the clues to find the mystery number.
What do the digits in the number fifteen add up to? How many other
numbers have digits with the same total but no zeros?
A church hymn book contains 700 hymns. The numbers of the hymns are
displayed by combining special small single-digit boards. What is
the minimum number of small boards that is needed?
Class 3 from Selside Endowed C of E
Primary wrote to say:
Ilakya from Glenarm College used a
similar method and said:
Sophie and Kyle from Holy Cross Primary
explained clearly their way of working:
Students from Newmarket College sent in very
good reasoning too. They also sent in this image of the completed
Eloise went about the problem slightly
Robbie from Orchard Junior School worked in a
similar way to Eloise.
Kyle form Orchard Junior School used a
I like this way of working, Kyle, but
are you sure that the number $1$ only appears eleven