What's Missing?

4S: Please print this page - then write your name and number at the 
top. The numbers in the bottom row and in the right most column are 
the totals for the columns, rows and the left-to-right, top-to-
bottom diagonal - they are shown in bold type. The block of numbers 
has some numbers missing - see the empty boxes. Fill in those 
numbers so that the totals for all rows, columns and the left-to-
right, top-to-bottom diagonal match the totals shown.

Have Fun!