The maroon numbers are multiples of 5 and
7. (Both.)
In this square:
they say:
The pink numbers are multiples of
2.
The blue numbers are multiples of 5 or 7.
Are you sure the blue could be multiples of 5? In this square:
they say:
The blue numbers are multiples of
11.
The pink numbers are supposed to be
multiples of 8.
The maroons are multiples of 8 and
11.
In the next square:
they explain:
The blues are multiples of 9.
The pinks are multiples of 6.
The maroon numbers are multiples of 9 and
6.
Finally, in this last square:
Sophie and Lulu wrote:
The blues are multiples of 9.
The pinks are multiples of 4 or 8.
Thank you for sending us your solution, girls. Well done!