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Grouping Goodies

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What Number?

I am less than 25. My ones digit is twice my tens digit. My digits add up to an even number.

The Set of Numbers

Stage: 1 Challenge Level: Challenge Level:1

Can you place the numbers from $1$ to $10$ in the grid (or matrix) below?

matrix to fill in - multiples of 2 or not, gerater than 5 or less than or equal to 5


Now try putting the same numbers in this grid:


matrix to fill in - multiple 5 or not and even or odd