I imagine everyone in the world has seen this already, but, over on the Find The factors blog is a string of mathematics puzzles. The one to which I link amounts to writing out a multiplication table, where the rows and columns have been scrambled, and you have to work out which row is which based on the select handful of numbers in the table. That is, the first row might be the multiples of 6, the next row the multiples of 9, the next row the multiples of 4; and the first column the multiples of 4, the second column multiples of 5, the third column multiples of 2, and so on.

I think this is a fun exercise. It’s more challenging than the day’s Jumble (which this year has had a disturbing number of ones that can be solved on sight, without any unscrambling of words), without being so time-consuming as Sudoku, and if you’re trying to learn the times tables (which I admit probably few readers around here are trying to do) there’s a lot of chance to think about what the multiplication tables are to work out the puzzle. There’s a fresh puzzle every week, as well as a good number of tools for people learning multiplication.

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## Author: Joseph Nebus

I was born 198 years to the day after Johnny Appleseed. The differences between us do not end there.
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Thank you for the FABULOUS ping. I love the comics and the math lessons on your blog. I never imagined I would ever read an entire post about MY blog here.

Thanks also to your readers who checked out Find The Factors. You made my day as more people opened the excel file containing the puzzles than ever before!

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Thank you, and I’m happy to be of service. This week’s 12-factor puzzles managed to drive one of my friends (and me) crazy as we weren’t doing well working out how to solve the last one; that row with the 16 and 32 was a struggle.

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Reblogged this on Find the Factors and commented:

One of my favorite bloggers wrote a post about the FIND THE FACTORS puzzles. I am thrilled to reprint what he wrote here!

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