Magic Square
About this exercise
A grid where every row, column and diagonal shares the same total.
Example problems
A few of the problems this exercise asks. The printable worksheet holds ten fresh ones.
- Complete the magic square so every row, column and diagonal sums to 15.
Try it yourself first — open a section below only if you get stuck.
How to solve it
Find a complete line to get the magic total, then use it to fill any line with only one gap.
Worked example
If a complete row totals 15, every other line must also total 15.
Common mistake
Filling a line with two gaps. Always work on a line that is missing exactly one number.