A square of numbers where every row and every column reads as a true sum. Fill the gaps so all six equations hold at once.
Each grid is checked so the numbers given force exactly one set of answers.
Easy 1
3 numbers to work out.
Show the answers
Easy 2
3 numbers to work out.
Show the answers
Medium 1
5 numbers to work out.
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Medium 2
5 numbers to work out.
Show the answers
Hard 1
5 numbers to work out.
Show the answers
Hard 2
6 numbers to work out.
Show the answers
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