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More differences

Puzzles to test mathematical skills. Set by Anita Straker.

Solutions on page 39

Use each of the numbers 1 to 10. Put one number in each circle.

As you go down the rows, make each number the difference of the two numbers above it.

Find different ways to do it.

Brainteaser solutions

More differences

Discounting reflections, here are four different ways to arrange the numbers

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