a numberblock you ask?
A numberblock is group of
numbers formed in a block.
The numbers in each row add up to the totals to the right. The numbers in each column add up to the totals along the bottom.
The diagonal lines also add up the totals to the right. Some of the
numbers are missing. You fill in the missing numbers.
Each page has 1 numberblock, and
we have a link to the answers on each numberblock page. Some
are easy, some harder - but in no particular order. Print &